HTTP Status 500 - Request processing failed NullException

HTTP Status 500 - Request processing failed NullException - java

i'm having difficult search error in my project. it can't insert data to database.
my controller :
package com.recome.controller;
import com.recome.dao.UserDAO;
import com.recome.model.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class RegisterController {
private UserDAO userDAO;
#RequestMapping(value = "/ShowRegisterForm", method = RequestMethod.GET)
public ModelAndView newContact(ModelAndView model) {
User newUser = new User();
model.addObject("User", newUser);
model.setViewName("registerForm");
return model;
}
#RequestMapping(value = "/saveUser", method = RequestMethod.POST)
public ModelAndView saveUser(#ModelAttribute User user) {
userDAO.create(user); **//the error point**
return new ModelAndView("redirect:index.jsp");
}
}
dispatcher-servlet :
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/recome"/>
<property name="username" value="root"/>
<property name="password" value=""/>
</bean>
<bean id="UserDAOImpl" class="com.recome.dao.UserDAOImpl">
<property name="dataSource" ref="dataSource" />
</bean>
<context:component-scan base-package="com.recome.controller" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
user interface :
package com.recome.dao;
import com.recome.model.User;
import java.util.List;
import javax.sql.DataSource;
public interface UserDAO {
public void setDataSource(DataSource ds);
public void create(User user);
public void update(String email,String password,String fullname,Integer id);
public User get(Integer id);
public void delete(Integer id);
public List<User> list();
}
user implementation :
package com.recome.dao;
import com.recome.model.User;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
public class UserDAOImpl implements UserDAO{
private JdbcTemplate jdbcTemplate;
private DataSource dataSource;
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
this.jdbcTemplate = new JdbcTemplate(dataSource);
}
public void create(User user) {
String query = "insert into user(email,password,fullname) "
+ "values(?,?,?)";
jdbcTemplate.update(query,user.getEmail(),user.getPassword(),user.getFullname());
}
public void update(String email, String password, String fullname, Integer id) {
String query = "update user set email = ?"+",password = ?"+",fullname = ? where id = ?";
jdbcTemplate.update(query,email,password,fullname,id);
}
public User get(Integer id) {
return null;
}
public void delete(Integer id) {
String query = "delete from user where id = ?";
jdbcTemplate.update(query,id);
}
public List<User> list() {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
error:
org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [dispatcher] in context with path [/Recome] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException
at com.recome.controller.RegisterController.saveUser(RegisterController.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:446)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2500)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2489)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
can someone help me. i already search for similar problem, but still not get what the error.

You should add annotation #Inject or #Autowired for your RegisterController::userDAO field, then it will be properly initialized.

You have defined
private UserDAO userDAO;
And then you call
userDAO.create(whatever);
at this point in time, no value has been assigned to userDAO, hence, null. You need to instantiate the object.

Related

I am getting a SQLGrammarException while trying to fetch data from table directly through URL

I am using Apache Tomcat v9.0 and when I am running the simple MVC project I am getting the error.
Alien.class
#Entity(name="alien")
public class Alien {
#Id
#Column(name="aid")
private int aid;
#Column(name="aname",length = 50)
private String aname;
public Alien(int aid, String aname) {
super();
this.aid = aid;
this.aname = aname;
}
public int getAid() {
return aid;
}
public void setAid(int aid) {
this.aid = aid;
}
public String getAname() {
return aname;
}
public void setAname(String aname) {
this.aname = aname;
}
#Override
public String toString() {
return "Alien [aid=" + aid + ", aname=" + aname + "]";
}
}
2.AlienDao
package com.example.OnlySpringMVCdemo.dao;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import com.example.springMVCdemo.models.Alien;
#Component
public class AlienDao {
#Autowired
private SessionFactory sessionFactory;
#Transactional
public List<Alien> getAlien(){
System.out.println("Inside getAliens method in DAO...");
Session session = sessionFactory.getCurrentSession();
System.out.println(session.createQuery("from alien", Alien.class).getQueryString());
List<Alien> aliens = session.createQuery("from alien",Alien.class).list();
System.out.println("the list is"+aliens);
return aliens;
}
}
3.HomeController
package com.example.OnlySpringMVCdemo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import com.example.OnlySpringMVCdemo.dao.AlienDao;
import com.example.springMVCdemo.models.Alien;
#Controller
public class HomeController {
#Autowired
private AlienDao dao;
#RequestMapping("/")
public String home() {
System.out.println("Home page requested");
return "index";
}
#ModelAttribute
public void modelData(Model m) {
m.addAttribute("name", "Piyush");
}
#GetMapping("getAliens")
public String getAliens(Model m) {
System.out.println("Inside the getAliens URL....");
m.addAttribute("result", dao.getAlien());
return "showAliens";
}
#RequestMapping("add")
/*public String add(HttpServletRequest req) {
int i = Integer.parseInt(req.getParameter("num1"));
int j = Integer.parseInt(req.getParameter("num2"));
int num3 = i+j;
HttpSession session = req.getSession();
session.setAttribute("num3", num3);
return "result.jsp";
}*/
/*public String add(#RequestParam("num1") int i,#RequestParam("num2")int j,HttpSession session) {
int num3= i+j;
session.setAttribute("num3", num3);
return "result.jsp";
}*/
/*
* public ModelAndView add(#RequestParam("num1") int i,#RequestParam("num2")int
* j) {
*
* ModelAndView mv = new ModelAndView(); mv.setViewName("result"); int num3 =
* i+j; mv.addObject("num3", num3); return mv; }
*/
//GetMethods
/*
* #RequestMapping(value="addAlien",method=RequestMethod.POST) public String
* addAlien(#ModelAttribute("alien") Alien a) {
* //System.out.println(a.getAid()+" "+a.getAname()); return "result";
* }
*/
#PostMapping(value="addAlien")
public String addAlien(#ModelAttribute("alien") Alien a) {
//System.out.println(a.getAid()+" "+a.getAname());
return "result";
}
}
4.dispatcherServlet-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:ctx="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<ctx:component-scan base-package="com.example.OnlySpringMVCdemo"></ctx:component-scan>
<ctx:annotation-config></ctx:annotation-config>
<!-- Configurations done to use ORM using Hibernate:-Start -->
<!-- Step 1: Define Database DataSource / connection pool -->
<bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="oracle.jdbc.driver.OracleDriver" />
<property name="jdbcUrl" value="jdbc:oracle:thin:#localhost:1521:orcldb"/>
<property name="user" value="piyush" />
<property name="password" value="admin" />
<!-- these are connection pool properties for C3P0 -->
<property name="minPoolSize" value="5" />
<property name="maxPoolSize" value="20" />
<property name="maxIdleTime" value="30000" />
</bean>
<!-- Step 2: Setup Hibernate session factory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="packagesToScan" value="com.example.springMVCdemo.models" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!-- Step 3: Setup Hibernate transaction manager -->
<bean id="myTransactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!-- Step 4: Enable configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="myTransactionManager"></tx:annotation-driven>
<!-- Add support for reading web resources: css, images, js, etc ... -->
<!-- <mvc:resources location="/resources/" mapping="/resources/**"></mvc:resources> -->
<!-- Configurations done to use ORM using Hibernate:-End -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
I am trying to simply call the URL http://localhost:8080/ORMMVC/getAliens in the address bar and I am getting the below error:
HTTP Status 500 – Internal Server Error
Type Exception Report
Message Request processing failed; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: JDBC exception executing SQL [select a1_0.aid, a1_0.aname from alien as a1_0]
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: JDBC exception executing SQL [select a1_0.aid, a1_0.aname from alien as a1_0]
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause
javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: JDBC exception executing SQL [select a1_0.aid, a1_0.aname from alien as a1_0]
org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
org.hibernate.query.spi.AbstractQuery.list(AbstractQuery.java:1365)
com.example.OnlySpringMVCdemo.dao.AlienDao.getAlien(AlienDao.java:23)
com.example.OnlySpringMVCdemo.dao.AlienDao$$FastClassBySpringCGLIB$$93172482.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
com.example.OnlySpringMVCdemo.dao.AlienDao$$EnhancerBySpringCGLIB$$600bf15f.getAlien(<generated>)
com.example.OnlySpringMVCdemo.HomeController.getAliens(HomeController.java:45)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause

** Two reasons for this issue were:**
This was happening because Hibernate was generating HT_Alien table which is a temporary table and the reason behind this was the Hibernate-core version 6.0.0.Alpha3.
I had no default constructor in the Alien(Entity) class
Suggestion:
Guys, please use hibernate core version 5.4.1.Final while using ORM using Hibernate. Below is the dependency for the same:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.4.1.Final</version>
</dependency>
The issue is resolved now!!

Hibernate : User is not mapped

I have been getting this error after generating the User class from database, everything seems to be in order in the User.hbm.xml yet I can't find why it's not mapped!
SEVERE: Servlet.service() for servlet [appServlet] in context with path [/CCTVDATASET] threw exception [Request processing failed; nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped [from User]] with root cause
org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped
at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:331)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3633)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3522)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:706)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:562)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:126)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:88)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:190)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1800)
at com.journaldev.spring.dao.UserDAOImpl.listUsers(UserDAOImpl.java:42)
at com.journaldev.spring.service.UserServiceImpl.listUsers(UserServiceImpl.java:35)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy28.listUsers(Unknown Source)
at com.journaldev.spring.UserController.listUsers(UserController.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:500)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
User.java
// default package
// Generated Nov 6, 2017 9:57:34 AM by Hibernate Tools 5.2.3.Final
package com.journaldev.spring.model;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.Entity;
import javax.persistence.Table;
/**
* User generated by hbm2java
*/
public class User implements java.io.Serializable {
private Integer iduser;
private String username;
private String password;
private Integer ssoId;
private Set logs = new HashSet(0);
public User() {
}
public User(String username, String password) {
this.username = username;
this.password = password;
}
public User(String username, String password, Integer ssoId, Set logs) {
this.username = username;
this.password = password;
this.ssoId = ssoId;
this.logs = logs;
}
public Integer getIduser() {
return this.iduser;
}
public void setIduser(Integer iduser) {
this.iduser = iduser;
}
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getSsoId() {
return this.ssoId;
}
public void setSsoId(Integer ssoId) {
this.ssoId = ssoId;
}
public Set getLogs() {
return this.logs;
}
public void setLogs(Set logs) {
this.logs = logs;
}
}
User.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated Nov 6, 2017 9:57:34 AM by Hibernate Tools 5.2.3.Final -->
<hibernate-mapping>
<class catalog="testdb" entity-name="User" name="User" table="user">
<id name="iduser" type="java.lang.Integer">
<column name="iduser"/>
<generator class="identity"/>
</id>
<property generated="never" lazy="false" name="username" type="string">
<column length="45" name="username" not-null="true"/>
</property>
<property generated="never" lazy="false" name="password" type="string">
<column length="45" name="password" not-null="true"/>
</property>
<property generated="never" lazy="false" name="ssoId" type="java.lang.Integer">
<column name="SSO_ID"/>
</property>
<set fetch="select" inverse="true" lazy="true" name="logs"
sort="unsorted" table="log">
<key>
<column name="iduser" not-null="true"/>
</key>
<one-to-many class="Log"/>
</set>
</class>
</hibernate-mapping>
UserDAO.java
package com.journaldev.spring.dao;
import java.util.List;
import com.journaldev.spring.model.User;
public interface UserDAO {
public void addUser(User u);
public void updateUser(User u);
public List<User> listUsers();
public User getUserById(int id);
public void removeUser(int id);
}
UserDAOImpl.java
package com.journaldev.spring.dao;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Repository;
import com.journaldev.spring.model.User;
#Repository
public class UserDAOImpl implements UserDAO {
private static final Logger logger = LoggerFactory.getLogger(UserDAOImpl.class);
private SessionFactory sessionFactory;
public void setSessionFactory(SessionFactory sf){
this.sessionFactory = sf;
}
#Override
public void addUser(User u) {
Session session = this.sessionFactory.getCurrentSession();
session.persist(u);
logger.info("User saved successfully, User Details="+u);
}
#Override
public void updateUser(User u) {
Session session = this.sessionFactory.getCurrentSession();
session.update(u);
logger.info("User updated successfully, User Details="+u);
}
#SuppressWarnings("unchecked")
#Override
public List<User> listUsers() {
Session session = this.sessionFactory.getCurrentSession();
List<User> usersList = session.createQuery("from User").list();
for(User u : usersList){
logger.info("User List::"+u);
}
return usersList;
}
#Override
public User getUserById(int id) {
Session session = this.sessionFactory.getCurrentSession();
User u = (User) session.load(User.class, new Integer(id));
logger.info("User loaded successfully, User details="+u);
return u;
}
#Override
public void removeUser(int id) {
Session session = this.sessionFactory.getCurrentSession();
User u = (User) session.load(User.class, new Integer(id));
if(null != u){
session.delete(u);
}
logger.info("User deleted successfully, user details="+u);
}
}
UserService.java
package com.journaldev.spring.service;
import java.util.List;
import com.journaldev.spring.model.User;
public interface UserService {
public void addUser(User u);
public void updateUser(User u);
public List<User> listUsers();
public User getUserById(int id);
public void removeUser(int id);
}
UserServiceImpl.java
package com.journaldev.spring.service;
import java.util.List;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.journaldev.spring.dao.UserDAO;
import com.journaldev.spring.model.User;
#Service
public class UserServiceImpl implements UserService {
private UserDAO userDAO;
public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}
#Override
#Transactional
public void addUser(User u) {
this.userDAO.addUser(u);
}
#Override
#Transactional
public void updateUser(User u) {
this.userDAO.updateUser(u);
}
#Override
#Transactional
public List<User> listUsers() {
return this.userDAO.listUsers();
}
#Override
#Transactional
public User getUserById(int id) {
return this.userDAO.getUserById(id);
}
#Override
#Transactional
public void removeUser(int id) {
this.userDAO.removeUser(id);
}
}
UserController.java
package com.journaldev.spring;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.journaldev.spring.service.UserService;
import com.journaldev.spring.model.User;
#Controller
public class UserController {
private UserService userService;
#Autowired(required=true)
#Qualifier(value="userService")
public void setUserervice(UserService us){
this.userService = us;
}
#RequestMapping(value = "/cctvsets", method = RequestMethod.GET)
public String listUsers(Model model) {
System.out.println("CHECKPOINT 1");
model.addAttribute("user", new User());
System.out.println("CHECKPOINT 2");
model.addAttribute("listUsers", this.userService.listUsers());
System.out.println("CHECKPOINT 3");
return "cctvsets";
}
}
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/testdb</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
</session-factory>
</hibernate-configuration>
servlet-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC #Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by #Controllers to .jsp resources
in the /WEB-INF/views directory -->
<beans:bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
<beans:property name="url"
value="jdbc:mysql://localhost:3306/testdb" />
<beans:property name="username" value="root" />
<beans:property name="password" value="root" />
</beans:bean>
<!-- Hibernate 4 SessionFactory Bean definition -->
<beans:bean id="hibernate4AnnotatedSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="annotatedClasses">
<beans:list>
<beans:value>com.journaldev.spring.model.Person</beans:value>
<beans:value>com.journaldev.spring.model.User</beans:value>
</beans:list>
</beans:property>
<beans:property name="hibernateProperties">
<beans:props>
<beans:prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect
</beans:prop>
<beans:prop key="hibernate.show_sql">true</beans:prop>
</beans:props>
</beans:property>
</beans:bean>
<beans:bean id="personDAO" class="com.journaldev.spring.dao.PersonDAOImpl">
<beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
<beans:bean id="personService" class="com.journaldev.spring.service.PersonServiceImpl">
<beans:property name="personDAO" ref="personDAO"></beans:property>
</beans:bean>
<beans:bean id="userDAO" class="com.journaldev.spring.dao.UserDAOImpl">
<beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
<beans:bean id="userService" class="com.journaldev.spring.service.UserServiceImpl">
<beans:property name="userDAO" ref="userDAO"></beans:property>
</beans:bean>
<context:component-scan base-package="com.journaldev.spring" />
<tx:annotation-driven transaction-manager="transactionManager"/>
<beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
</beans:beans>

You must mapped the User.hbm.xml in your Hibernate.cfg.xml.

User is a reserved work in mysql. Rename your table to e.g: 'SystemUser' or whatever you like, which is not a reserved keyword in mysql.

org.springframework.beans.factory.BeanCreationException with Transaction Manager

I've been studying Spring MVC on a Restful application, but I'm struggling to get it working.
My application have the following structure:
#Entity Classes
#Repository Classes (which use #Transactional for queries)
#RestfulController Classes (for simplification, I didn't implemented the service layer)
I want to use #Transactional for queries, but I'm getting the error message on server start when I configure it on spring xml file.
WARN : org.springframework.web.context.support.XmlWebApplicationContext - Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'calendarController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private br.com.milo.repository.CalendarRepository br.com.milo.controller.CalendarController.repository; nested exception is java.lang.IllegalArgumentException: Can not set br.com.milo.repository.CalendarRepository field br.com.milo.controller.CalendarController.repository to com.sun.proxy.$Proxy47
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:835)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5253)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5543)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
This error only happens if I add the following config in my spring config file:
<tx:annotation-driven transaction-manager="transactionManager"/>
If I remove this line, the problem disappears, the Restful requests works fine, but, the Repository methods doesn't save the data. In this case, the message below is shown (this error ocurred on another Controller, as Callendar functionality isn't finished. Although, the exception is related, as it verses about Transaction):
Dec 29, 2015 5:03:45 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [appServlet] in context with path [/milo] threw exception [Request processing failed; nested exception is javax.persistence.TransactionRequiredException: No EntityManager with actual transaction available for current thread - cannot reliably process 'persist' call] with root cause
javax.persistence.TransactionRequiredException: No EntityManager with actual transaction available for current thread - cannot reliably process 'persist' call
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:277)
at com.sun.proxy.$Proxy45.persist(Unknown Source)
at br.com.milo.repository.FarmRepository.save(FarmRepository.java:28)
at br.com.milo.controller.FarmController.insertFarm(FarmController.java:70)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at br.com.milo.security.CsrfHeaderFilter.doFilterInternal(CsrfHeaderFilter.java:34)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:120)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Here is my spring config file
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="br.com.milo" />
<resources mapping="/resources/**" location="/resources/" />
<resources mapping="/pages/**" location="/pages/" />
<resources mapping="/login/**" location="/login/" />
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<beans:bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<beans:property name="messageConverters">
<beans:list>
<beans:ref bean="jsonMessageConverter"/>
</beans:list>
</beans:property>
</beans:bean>
<beans:bean id="jsonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
</beans:bean>
<beans:bean id="myEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="packagesToScan" value="br.com.milo" />
<beans:property name="jpaVendorAdapter">
<beans:bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</beans:property>
<beans:property name="jpaProperties">
<beans:props>
<beans:prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</beans:prop>
</beans:props>
</beans:property>
</beans:bean>
<beans:bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<beans:property name="driverClassName" value="org.postgresql.Driver" />
<beans:property name="url" value="jdbc:postgresql://localhost:5432/milo" />
<beans:property name="username" value="123" />
<beans:property name="password" value="123" />
</beans:bean>
<beans:bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<beans:property name="entityManagerFactory" ref="myEmf" />
</beans:bean>
<!-- Just when I add this line the error above is shown -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans:beans>
Here is the Class CalendarController.java
package br.com.milo.controller;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import br.com.milo.domain.Calendar;
import br.com.milo.domain.Owner;
import br.com.milo.domain.DTO.CalendarMonthDTO;
import br.com.milo.repository.CalendarRepository;
#RestController
#RequestMapping("/rest/calendar")
public class CalendarController {
private static final Logger logger = LoggerFactory.getLogger(CalendarController.class);
#Autowired
private CalendarRepository repository;
#RequestMapping(value = RestPaths.GET_CALENDAR, method = RequestMethod.GET)
public #ResponseBody Calendar getCalendar(#PathVariable("id") int id) {
logger.info("Start Get Calendar. ID=" + id);
return repository.findById(id);
}
#RequestMapping(value = RestPaths.LIST_CALENDARS, method = RequestMethod.GET)
public #ResponseBody List<Calendar> listCalendars() {
logger.info("Start List Calendars.");
List<Calendar> calendars = repository.list();
return calendars;
}
#RequestMapping(value = RestPaths.LIST_CALENDAR_BY_OWNER, method = RequestMethod.GET)
public #ResponseBody List<Calendar> listByOwner(#RequestBody Owner o) {
logger.info("Start List Calendars By Owner.");
List<Calendar> calendars = repository.listByType(o);
return calendars;
}
#RequestMapping(value = RestPaths.UPDATE_CALENDAR, method = RequestMethod.POST)
public #ResponseBody Calendar updateCalendar(#RequestBody Calendar calendar) {
logger.info("Start Update Calendar.");
repository.update(calendar);
return calendar;
}
#RequestMapping(value = RestPaths.INSERT_CALENDAR, method = RequestMethod.POST)
public #ResponseBody Calendar insertCalendar(#RequestBody Calendar calendar) {
logger.info("Start Insert Calendar.");
repository.save(calendar);
return calendar;
}
#RequestMapping(value = RestPaths.DELETE_CALENDAR, method = RequestMethod.PUT)
public #ResponseBody Calendar deleteCalendar(#PathVariable("id") int calendarId) {
logger.info("Start delete Calendar.");
Calendar calendar = repository.findById(calendarId);
repository.delete(calendar);
return calendar;
}
#RequestMapping(value = RestPaths.LIST_CALENDAR_BY_MONTH, method = RequestMethod.GET)
public #ResponseBody List<Calendar> listByMonth(#RequestBody CalendarMonthDTO calendarDTO) {
logger.info("Start List Calendar By Month.");
List<Calendar> calendars = repository.listByMonth(calendarDTO.getOwner(), calendarDTO.getYear(), calendarDTO.getMonth());
return calendars;
}
}
Here is the class CalendarRepository.java
package br.com.milo.repository;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import br.com.milo.domain.Calendar;
import br.com.milo.domain.Owner;
#Repository
public class CalendarRepository implements br.com.milo.repository.Repository<Calendar, Owner>{
#PersistenceContext
private EntityManager entityManager;
#Override
#Transactional
public void save(Calendar calendar) {
entityManager.persist(calendar);
}
#Override
#Transactional
public void update(Calendar calendar) {
entityManager.merge(calendar);
}
#Override
#Transactional
public void delete(Integer id) {
this.delete(this.findById(id));
}
#Override
#Transactional
public void delete(Calendar calendar){
entityManager.remove(calendar);
}
#Override
#SuppressWarnings("unchecked")
public List<Calendar> list() {
Query query = entityManager.createQuery("from Calendar c order by c.calendarDate DESC");
return query.getResultList();
}
#Override
#SuppressWarnings("unchecked")
public List<Calendar> listByType(Owner o) {
if(o != null){
Query query = entityManager.createQuery("from Calendar c join c.ownerList o where o.name = :owner");
query.setParameter("owner", o.getName());
return query.getResultList();
}
return null;
}
#SuppressWarnings("unchecked")
public List<Calendar> listByMonth(Owner o, int year, int month) {
if(o != null){
Query query = entityManager.createQuery("from Calendar c join c.ownerList o "
+ "where o.name = :owner "
+ "and month(e.calendarDate)=:month "
+ "and year(e.calendarDate)=:year");
query.setParameter("owner", o.getName());
query.setParameter("month", month);
query.setParameter("year", year);
return query.getResultList();
}
return null;
}
#Override
public Calendar findById(Integer id) {
Calendar calendar = entityManager.find(Calendar.class, id);
return calendar;
}
}
Thanks in advance for looking to my question!

Your repository field in the CalendarController should be defined by the interface, not with the class. Spring creates a Proxy around your CalendarRepository which implements the same interfaces, but is not a subclass of CalendarRepository.
This question was about exactly the same problem: #Autowired return exception on UserDetails in Spring-security
You are trying to autowire your user details service by class, but that can't work, because the spring bean is actually a proxy created around that class (and not an instance of the class). The proxy will however implement all interfaces of the original bean, so injecting by interface is safe.
Exchange this line:
#Autowired
private MyCustomUserDetailsService myCustomUserDetailsService;
for this one:
#Autowired
private UserDetailsService myCustomUserDetailsService;
Read the section on Proxying Mechanisms in the Spring AOP to understand the details.
So in your case, you could create a new interface CalendarRepository with the methods you need, and then implement then in class CalendarRepositoryImpl implements CalendarRepository:
interface CalendarRepository extends br.com.milo.repository.Repository<Calendar, Owner>{
void save(Calendar calendar);
void update(Calendar calendar);
void delete(Integer id);
... (and all other methods you need)
}
#Repository
class CalendarRepositoryImpl implements CalendarRepository {
... (what you currently have in CalendarRepository)
}
class CalendarController {
#Autowired
CalendarRepository repository; // NOT CalendarRepositoryImpl
}

Spring mvc with hibernate

I am beginner in spring mvc, I want to create simple example but I am getting exception im my service layer here is the exception
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/haybet] threw exception `enter code here`[Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException
at org.proffart.bet.controller.BetController.registerUser(BetController.java:47)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:177)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:446)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I am getting exception when clicking on register button in register.jsp, I guess that the problem is with hibernate and mysql connection, please help me to find the problem.
Here are my files
Controller
package org.proffart.bet.controller;
import java.io.IOException;
import javax.validation.Valid;
import org.proffart.bet.domain.User;
import org.proffart.bet.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class BetController {
UserService service;
//private static final Logger log = Logger.getLogger(BetController.class);
#RequestMapping(value="register", method = RequestMethod.GET)
public String showRegisterForm(ModelMap model){
User user = new User();
model.addAttribute("user",user );
return "register";
}
#RequestMapping(value="/register", method = RequestMethod.POST)
public String registerUser(#Valid User user, BindingResult result,
ModelMap model){
System.out.println(user.getNickName());
System.out.println(user.getNickName());
System.out.println(user);
user.setBalance((double) 1);
user.setEmail("aaa");
user.setId(1);
if (result.hasErrors()){
return "register";
}
service.saveUser(user);
return "success";
}
}
DAO classes
package org.proffart.bet.dao;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
public class AbstractDAO {
#Autowired
private SessionFactory sessionFactory;
protected Session getSession(){
return sessionFactory.getCurrentSession();
}
public void persist(Object entity) {
getSession().persist(entity);
}
}
UserDao class
package org.proffart.bet.dao;
import java.util.List;
import org.proffart.bet.domain.User;
public interface UserDAO {
public void addUser(User user);
public void deleteUser(Integer id);
public List<User> getUsers();
}
UserDAOImpl
package org.proffart.bet.dao;
import java.util.List;
import org.hibernate.SessionFactory;
import org.proffart.bet.domain.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
#Repository
public class UserDAOImpl extends AbstractDAO implements UserDAO{
#Autowired
private SessionFactory sessionFactory;
public void addUser(User user) {
persist(user);
}
public void deleteUser(Integer id) {
}
public List<User> getUsers() {
}
}
Service classes
UserService
package org.proffart.bet.service;
import javax.transaction.Transactional;
import org.proffart.bet.dao.UserDAO;
import org.proffart.bet.dao.UserDAOImpl;
import org.proffart.bet.domain.User;
#Transactional
public class UserService {
UserDAO dao;
public void saveUser(User user){
dao.addUser(user);
}
}
Doamin layer
User
package org.proffart.bet.domain;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name="users")
public class User {
#Id
#Column(name="id")
#GeneratedValue
private Integer id;
#Column(name="nic_name")
private String nickName;
#Column(name="email")
private String email;
#Column(name="password")
private String password;
#Column(name="balance")
private Double balance;
public String getEmail(){
return email;
}
public void setEmail(String email){
this.email = email;
}
public String getNickName(){
return nickName;
}
public void setNickName(String nickName){
this.nickName = nickName;
}
public String getPassword(){
return password;
}
public void setPassword(String password){
this.password = password;
}
public Double getBalance(){
return balance;
}
public void setBalance(Double balance){
this.balance = balance;
}
public Integer getId(){
return id;
}
public void setId(int id){
this.id = id;
}
}
Reguister.jsp
<%# page session="true" %>
<%#taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<%#taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%#taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# page isELIgnored="false" %>
<html>
<head>
</head>
<body>
<h3>Welcome To Virtual bettings</h3>
<form:form method="POST" modelAttribute="user">
<table>
<tr>
<td><label for="nickName">Login: </label> </td>
<td><form:input path="nickName" id="nickName"/></td>
</tr>
<tr>
<td><label for="password">Password: </label> </td>
<td><form:input path="password" id="password"/></td>
</tr>
<tr>
<td><input type="submit" value="register"/></td>
</tr>
</table>
</form:form>
</body>
</html>
And finally config files in xml
web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher-servlet.xml /WEB-INF/hibernateDataAccessContext.xml</param- value>
</context-param>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
hibernateDataAccessContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans>
<!-- Auto-detect DAOs -->
<context:component-scan base-package="org.proffart.bet.dao"/>
<context:property-placeholder location="WEB-INF/jdbc.properties"/>
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.url}"
p:username="${jdbc.username}"
p:password="${jdbc.password}"
p:maxActive="${dbcp.maxActive}"
p:maxIdle="${dbcp.maxIdle}"
p:maxWait="${dbcp.maxWait}"/>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSource"
p:configurationClass="org.hibernate.cfg.AnnotationConfiguration"
p:packagesToScan="org.proffart.bet.domain">
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
</props>
</property>
<property name="eventListeners">
<map>
<entry key="merge">
<bean class="org.springframework.orm.hibernate3.support.IdTransferringMergeEventListener"/>
</entry>
</map>
</property>
</bean>
<!-- Allow declarative transaction management using the #Transactional annotation -->
<tx:annotation-driven transaction-manager="txnManager"/>
<!-- Transaction manager for the Hibernate SessionFactory -->
<bean id="txnManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory"/>
<!-- Apply persistence exception translation on #Repository classes -->
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
</beans>
And dispatcher-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="org.proffart.bet.controller" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/</value>
</property>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
jdbc.properties
hibernate.generate_statistics=true
hibernate.show_sql=true
jpa.showSql=true
hibernate.dialect=org.hibernate.dialect.HSQLDialect
jpa.databasePlatform=org.springframework.samples.petclinic.toplink.EssentialsHSQLPlatformWithNativeSequence
jpa.database=HSQL
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/bet
jdbc.username=root
jdbc.password=

Your exception shows a NullPointerException on line 47 of BetController. However there is nothing at this line in the class you posted. My guess is that your UserService is not injected in your controller. Add the #Autowired annotation:
#Controller
public class BetController {
#Autowired
UserService service;

I think you miss autowire Userservice object in to controller layer
Please add #autowire top of Userservice object It will sovles your problem.
#Autowire
UserService service;
If its give any problem just google how to autowire service object,
Also you have done one mistake while creating service object you need to create Userservice as Interface and one concert implementation of Userservice like UserServiceImpl
Thanks,
Himanshu

Put #Service annotation on UserService class,and #Autowired on the below line in BetController class.
#Autowired
UserService service;
And i see you setted component scanning to controller package only,how ever you need to set it to below.
<context:component-scan base-package="org.proffart.bet.*"/>

This is the best example for Spring mvc crud operation using JQuery Ajax. You may find maven as well in this.
Site: Spring MVC With Hibernate CRUD
Or You may visit YouTube Channel: Spring MVC with Hibernate CRUD VIDEO

Spring security 3.2.3 hibernate configuration

I am trying to configure Spring Security with hibernate but i am getting this error.
INFO: Starting Coyote HTTP/1.1 on http-8080
Sep 11, 2014 5:12:54 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet mvc-dispatcher threw exception
org.hibernate.HibernateException: No Session found for current thread
at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:988)
at com.mytravly.travlyweb.dao.AbstractHibernateDAO.getCurrentSession(AbstractHibernateDAO.java:52)
at com.mytravly.travlyweb.dao.AbstractHibernateDAO.findAll(AbstractHibernateDAO.java:30)
at com.mytravly.travlyweb.service.UserService.getAll(UserService.java:35)
at com.mytravly.travlyweb.controller.MainController.defaultPage(MainController.java:35)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:722)
web.xml
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>TravlyWeb</display-name>
<!-- Spring MVC -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring-database.xml,
/WEB-INF/spring-security.xml
</param-value>
</context-param>
<!-- Spring Security -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
spring-database.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/travlywebdb" />
<property name="username" value="root" />
<property name="password" value="" />
<property name="validationQuery" value="SELECT 1" />
</bean>
<bean id="mySessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource"/>
<property name="packagesToScan">
<array>
<value>com.mytravly.travlyweb</value>
</array>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
</value>
</property>
</bean>
<!--
<bean id="userDao" class="com.mytravly.travlyweb.dao.UserDaoImpl">
<property name="sessionFactory" ref="mySessionFactory" />
</bean>
<bean id="myUserDetailsService" class="com.mytravly.travlyweb.service.MyUserDetailsService">
<property name="userDao" ref="userDao" />
</bean> -->
<!-- Hibernate Transaction Manager -->
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="mySessionFactory"/>
</bean>
<!-- Activates annotation based transaction management -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
mvc-dispatcher-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<!-- Enable #Controller annotation support -->
<mvc:annotation-driven />
<context:component-scan base-package="com.mytravly.travlyweb" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
spring-security.xml
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.2.xsd">
<!-- enable use-expressions -->
<http auto-config="true" use-expressions="true">
<intercept-url pattern="/admin**" access="hasRole('ROLE_ADMIN')" />
<!-- access denied page -->
<access-denied-handler error-page="/403" />
<form-login login-page="/login" default-target-url="/welcome"
authentication-failure-url="/login?error" username-parameter="username"
password-parameter="password" />
<logout logout-success-url="/login?logout" />
<!-- enable csrf protection -->
<csrf />
</http>
<!--
<authentication-manager>
<authentication-provider user-service-ref="myUserDetailsService">
<password-encoder hash="plaintext" />
</authentication-provider>
</authentication-manager> -->
<authentication-manager>
<authentication-provider>
<jdbc-user-service data-source-ref="myDataSource"
users-by-username-query="select username,password from user where username = ?"
authorities-by-username-query="select username,authority from authorities where username = ?" />
</authentication-provider>
</authentication-manager>
</beans:beans>
controller
package com.mytravly.travlyweb.controller;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.LockedException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import com.mytravly.travlyweb.bean.User;
import com.mytravly.travlyweb.service.UserService;
#Controller
#Transactional(propagation = Propagation.REQUIRES_NEW)
public class MainController {
#Autowired
UserService service;
#RequestMapping(value = { "/", "/welcome**" }, method = RequestMethod.GET)
public ModelAndView defaultPage() {
List<User> list = service.getAll();
ModelAndView model = new ModelAndView();
model.addObject("title", "Spring Security + Hibernate Example");
model.addObject("message", list.get(0).getUsername());
model.setViewName("hello");
return model;
}
#RequestMapping(value = "/admin**", method = RequestMethod.GET)
public ModelAndView adminPage() {
ModelAndView model = new ModelAndView();
model.addObject("title", "Spring Security + Hibernate Example");
model.addObject("message", "This page is for ROLE_ADMIN only!");
model.setViewName("admin");
return model;
}
#RequestMapping(value = "/login", method = RequestMethod.GET)
public ModelAndView login(#RequestParam(value = "error", required = false) String error,
#RequestParam(value = "logout", required = false) String logout, HttpServletRequest request) {
ModelAndView model = new ModelAndView();
if (error != null) {
model.addObject("error", getErrorMessage(request, "SPRING_SECURITY_LAST_EXCEPTION"));
}
if (logout != null) {
model.addObject("msg", "You've been logged out successfully.");
}
model.setViewName("login");
return model;
}
// customize the error message
private String getErrorMessage(HttpServletRequest request, String key) {
Exception exception = (Exception) request.getSession().getAttribute(key);
String error = "";
if (exception instanceof BadCredentialsException) {
error = "Invalid username and password!";
} else if (exception instanceof LockedException) {
error = exception.getMessage();
} else {
error = "Invalid username and password!";
}
return error;
}
// for 403 access denied page
#RequestMapping(value = "/403", method = RequestMethod.GET)
public ModelAndView accesssDenied() {
ModelAndView model = new ModelAndView();
// check if user is login
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
if (!(auth instanceof AnonymousAuthenticationToken)) {
UserDetails userDetail = (UserDetails) auth.getPrincipal();
System.out.println(userDetail);
model.addObject("username", userDetail.getUsername());
}
model.setViewName("403");
return model;
}
/*#Autowired
UserService userService;
#Autowired
TestBl bl;
#RequestMapping(value = "/login", method = RequestMethod.GET)
public String login(Model model) {
return "signin";
}
#RequestMapping(value = "/signup", method = RequestMethod.GET)
public String signup(Model model) {
return "signup";
}
#RequestMapping(value = "/dashboard", method = RequestMethod.GET)
public String dashboard(Model model) {
return "blank";
}*/
}
Service
package com.mytravly.travlyweb.service;
import java.io.Serializable;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import com.mytravly.travlyweb.bean.User;
import com.mytravly.travlyweb.dao.AbstractHibernateDAO;
import com.mytravly.travlyweb.dao.IGenericDAO;
#Service
#Transactional(propagation = Propagation.MANDATORY)
public class UserService {
public UserService() {
// TODO Auto-generated constructor stub
}
AbstractHibernateDAO<User> dao;
#Autowired
public void setDao(final AbstractHibernateDAO<User> userDao) {
dao = userDao;
dao.setClazz(User.class);
}
public List<User> getAll()
{
return dao.findAll();
}
}
AbstractHibernateDAO
package com.mytravly.travlyweb.dao;
import java.io.Serializable;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
public abstract class AbstractHibernateDAO<T extends Serializable> {
private Class<T> clazz;
#Autowired
SessionFactory sessionFactory;
public void setClazz(final Class<T> clazzToSet) {
clazz = clazzToSet;
}
public T getById(final Long id) {
return (T) getCurrentSession().get(clazz, id);
}
public List<T> findAll() {
return getCurrentSession().createQuery("from " + clazz.getName())
.list();
}
public void save(final T entity) {
getCurrentSession().persist(entity);
}
public void update(final T entity) {
getCurrentSession().merge(entity);
}
public void delete(final T entity) {
getCurrentSession().delete(entity);
}
public void deleteById(final Long entityId) {
final T entity = getById(entityId);
delete(entity);
}
protected Session getCurrentSession() {
return sessionFactory.getCurrentSession();
}
}

The error is letting you know that there is no open transaction when you are calling you DAO method and hitting the database. That means that the transaction management of the UserService is wrong.
I would try to change the transaction management of the UserService to create a transaction if there isn't already an existing:
#Service
#Transactional(propagation = **Propagation.REQUIRED**)
public class UserService {
If this works, the problem could be with the constructing of the spring xmls.

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

HTTP Status 500 - Request processing failed NullException - java

You should add annotation #Inject or #Autowired for your RegisterController::userDAO field, then it will be properly initialized.

You have defined private UserDAO userDAO; And then you call userDAO.create(whatever); at this point in time, no value has been assigned to userDAO, hence, null. You need to instantiate the object.

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