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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!!

Unable to locate persister : org.ceri.gestiondonnees.entities.Utilisateur

I'm getting the error below but I don't know what is the problem. My entity is correctly written and the associated table exist also on database.
This is my entity
package org.ceri.gestiondonnees.entities;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Utilisateur implements Serializable{
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int id ;
private String email ;
private String nom ;
private String prenom ;
private String password ;
public Utilisateur() {
super();
// TODO Auto-generated constructor stub
}
public Utilisateur(String nom, String prenom, String email, String password)
{
super();
this.nom = nom;
this.prenom = prenom;
this.email = email;
this.password = password;
}
public String getNom() {
return nom;
}
public void setNom(String nom) {
this.nom = nom;
}
public String getPrenom() {
return prenom;
}
public void setPrenom(String prenom) {
this.prenom = prenom;
}
public String getEmail() {
return email;
}
Here is a the method of my spring's controller where I'm invoking the business layer
#RequestMapping(value = "/signin")
public String logIn(UserForm userForm, Model model) {
Utilisateur user = metier.getUser(1) ;
return "home";
}
The business method
#Override
public Utilisateur getUser(int idUser) {
// TODO Auto-generated method stub
Utilisateur user = em.find(Utilisateur.class, idUser);
return user;
}
This is the exception that I got
Caused by: java.lang.IllegalArgumentException: Unable to locate persister: org.ceri.gestiondonnees.entities.Utilisateur
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1097)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1033)
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.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
at com.sun.proxy.$Proxy36.find(Unknown Source)
at org.ceri.gestiondonnees.dao.UsersDaoImpl.getUser(UsersDaoImpl.java:38)
at org.ceri.gestiondonnees.metier.UserMetierImpl.getUser(UserMetierImpl.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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy38.getUser(Unknown Source)
at org.ceri.gestiondonnees.controllers.UserController.logIn(UserController.java:52)
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:213)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
... 42 more
Caused by: org.hibernate.UnknownEntityTypeException: Unable to locate persister: org.ceri.gestiondonnees.entities.Utilisateur
at org.hibernate.internal.SessionFactoryImpl.locateEntityPersister(SessionFactoryImpl.java:824)
at org.hibernate.internal.SessionImpl.locateEntityPersister(SessionImpl.java:2906)
at org.hibernate.internal.SessionImpl.access$2500(SessionImpl.java:167)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2662)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.<init>(SessionImpl.java:2648)
at org.hibernate.internal.SessionImpl.byId(SessionImpl.java:1105)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:978)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1075)
... 78 more
Spring Bean XML
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
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/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<bean id="dao" class="org.ceri.gestiondonnees.dao.UsersDaoImpl"></bean>
<bean id="businessLogic" class="org.ceri.gestiondonnees.metier.UserMetierImpl">
<property name="usersDao" ref="dao"></property>
</bean>
<!-- data source -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://127.0.0.1/usersdb"></property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>
<!-- persistenceUnit manager -->
<bean id="persistenceUnitManager" class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
<property name="persistenceXmlLocations">
<list>
<value>classpath*:META-INF/persistence.xml</value>
</list>
</property>
<property name="defaultDataSource" ref="dataSource"></property>
</bean>
<!-- entityManagerFactory -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitManager" ref="persistenceUnitManager"></property>
<property name="persistenceUnitName" value="usersDataBase"></property>
</bean>
<!-- transactionManager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"></property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<context:annotation-config></context:annotation-config>
</beans>
Hibernate Configuration
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="usersDataBase" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
</properties>
</persistence-unit>
<persistence>

org.springframework.beans.factory.BeanCreationException and org.springframework.beans.factory.NoUniqueBeanDefinitionException

I have developed server program using spring mvc and hibernate but I'm getting an error at runtime
This is 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"
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"
xmlns:tx="http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.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>
<context:component-scan base-package="kr.ac.jbnu.jinggumdari" />
<context:annotation-config />
<beans:bean
class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<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/jinggumdari" />
<beans:property name="username" value="root" />
<beans:property name="password" value="mysql1234" />
</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>kr.ac.jbnu.jinggumdari.model.Member</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="memberDAO" class="kr.ac.jbnu.jinggumdari.DAO.MemberDAOImpl">
<beans:property name="sessionFactory"
ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
<beans:bean id="memberService"
class="kr.ac.jbnu.jinggumdari.serviceImplementation.MemberManageServiceImpl">
<beans:property name="memberDAO" ref="memberDAO"></beans:property>
</beans:bean>
<beans:bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<beans:property name="sessionFactory"
ref="hibernate4AnnotatedSessionFactory" />
</beans:bean>
</beans:beans>
and It is error message
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jinggumdariController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private kr.ac.jbnu.jinggumdari.service.MemberManageService kr.ac.jbnu.jinggumdari.controller.JinggumdariController.MemberManager; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [kr.ac.jbnu.jinggumdari.service.MemberManageService] is defined: expected single matching bean but found 2: memberManageServiceImpl,memberService
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5262)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5550)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
and my code:
package kr.ac.jbnu.jinggumdari.controller;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import kr.ac.jbnu.jinggumdari.model.Member;
import kr.ac.jbnu.jinggumdari.service.MemberManageService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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 org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
/**
* Handles requests for the application home page.
*/
#Controller
public class JinggumdariController {
private static final Logger logger = LoggerFactory.getLogger(JinggumdariController.class);
#Autowired
private MemberManageService MemberManager;
private boolean isSuccess;
/**
* Simply selects the home view to render by returning its name.
*/
#RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
logger.info("Welcome home! The client locale is {}.", locale);
Date date = new Date();
DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
String formattedDate = dateFormat.format(date);
model.addAttribute("serverTime", formattedDate );
return "home";
}
#RequestMapping(value = "/member/signIn", method = RequestMethod.GET)
public #ResponseBody boolean signIn(#RequestParam("email") String email,
#RequestParam("password") String password,
HttpServletRequest request, HttpServletResponse response) {
isSuccess = false;
Member member = new Member(email, password);
isSuccess = MemberManager.addMember(member);
return isSuccess;
}
#RequestMapping(value = "/member/getInfo", method = RequestMethod.GET)
public #ResponseBody Member getMember(#RequestParam("email") String email) {
Member member = MemberManager.getMember(email);
return member;
}
//출력 예시 코드
#RequestMapping(value = "/test", method = RequestMethod.POST)
public #ResponseBody String test2() {
return "이젠 이걸 쓸거임";
}
}
package kr.ac.jbnu.jinggumdari.service;
import kr.ac.jbnu.jinggumdari.model.Member;
public interface MemberManageService {
public boolean addMember(Member member);
public boolean modifyMember(Member member);
public boolean removeMember(String email);
public Member getMember(String email);
}
package kr.ac.jbnu.jinggumdari.serviceImplementation;
import kr.ac.jbnu.jinggumdari.DAO.MemberDAO;
import kr.ac.jbnu.jinggumdari.model.Member;
import kr.ac.jbnu.jinggumdari.service.MemberManageService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
#Service
public class MemberManageServiceImpl implements MemberManageService{
private MemberDAO memberDAO;
public void setMemberDAO(MemberDAO memberDAO) {
this.memberDAO = memberDAO;
}
#Override
#Transactional
public boolean addMember(Member member) {
return memberDAO.addMember(member);
}
#Override
#Transactional
public boolean modifyMember(Member member) {
return memberDAO.modifyMember(member);
}
#Override
#Transactional
public boolean removeMember(String email) {
return removeMember(email);
}
#Override
#Transactional
public Member getMember(String email) {
return memberDAO.getMember(email);
}
}

The exception is pretty clear, expected single matching bean but found 2: memberManageServiceImpl,memberService
You are creating bean in your xml (having id: memberService) and also using annotation #Service (having id: memberManageServiceImpl). You need to decide which one you want and remove other.

Spring Data: Injected repository is null

I had Spring Data's repository working in a #Controller a short while ago. Having moved data access down into a #Service, it stopped working. Everything looks fine to me.... Why is this DI failing?
Here's my spring-config:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:data="http://www.springframework.org/schema/data/jpa"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="POSTGRESQL" />
<property name="databasePlatform" value="org.hibernate.dialect.PostgreSQLDialect" />
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource" />
<property name="jpaDialect" ref="jpaDialect" />
</bean>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://localhost:5432/cp" />
<property name="username" value="cp_user" />
<property name="password" value="+JMJ+pw0m2d" />
</bean>
<data:repositories base-package="com.mydomain.data.repository" />
<mvc:annotation-driven />
</beans>
My application:
#ComponentScan
#EnableAutoConfiguration
#ImportResource("classpath:spring-config.xml")
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
My controller:
#Controller
#RequestMapping("/app/user")
#ExposesResourceFor(User.class)
public class UserController {
#RequestMapping(value = "/{userid}", method = RequestMethod.GET, produces = "application/json")
#ResponseBody
public HttpEntity<UserResource> get(#PathVariable("userid") long id) {
ProfileService ps = new ProfileService();
UserResource resource = ps.get(id);
return new ResponseEntity<UserResource>(resource, HttpStatus.OK);
}
}
And my service:
#Service
#ExposesResourceFor(User.class)
public class ProfileService {
#Inject
private UserRepository users;
public UserResource get(long id) {
Long longId = new Long(id);
User user = users.findOne(longId); // Line 24
if (user == null) {
throw new ResourceNotFoundException();
}
UserMapper assembler = new UserMapper();
UserResource resource = assembler.toResource(user);
return resource;
}
public void update(UserResource resource) {
UserMapper assembler = new UserMapper();
User user = assembler.toEntity(resource);
users.save(user);
}
}
Throwing exception:
java.lang.NullPointerException
com.mydomain.service.ProfileService.get(ProfileService.java:24)
com.mydomain.app.web.UserController.get(UserController.java:74)
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.invoke(InvocableHandlerMethod.java:214)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:748)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:947)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:878)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:946)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:837)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:822)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
Where ProfileService:24 is:
User user = users.findOne(longId);

In your controller you create ProfileService instance with a new keyword and it is not managed by Spring (Spring doesn't know about it and cannot inject UserRepository - this causes NullPointerException). You have to inject ProfileService into UserController the same way you inject UserRepository into ProfileService. For example:
#Controller
#RequestMapping("/app/user")
#ExposesResourceFor(User.class)
public class UserController {
#Autowired
private ProfileService profileService;
#RequestMapping(value = "/{userid}", method = RequestMethod.GET, produces = "application/json")
#ResponseBody
public HttpEntity<UserResource> get(#PathVariable("userid") long id) {
UserResource resource = profileService.get(id);
return new ResponseEntity<UserResource>(resource, HttpStatus.OK);
}
}

Spring-Hibernate - No Session found for current thread

I have a java stuts2 web application using spring and hibernate.
Im getting org.hibernate.HibernateException: No Session found for current thread.
SpringBean.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
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
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
<context:component-scan base-package="org.rohith" />
<context:annotation-config />
<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/company" />
<property name="username" value="root" />
<property name="password" value="password" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>hibernate.cfg.xml</value>
</list>
</property>
</bean>
<!-- <tx:annotation-driven/> -->
<bean id = "transactionManager" class = "org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name = "sessionFactory" ref = "sessionFactory" />
</bean>
<bean id="customerDaoImpl" class="org.rohith.dao.impl.CustomerDaoImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="customerServiceImpl" class="org.rohith.service.impl.CustomerServiceImpl">
<property name="customerDaoImpl" ref="customerDaoImpl"/>
</bean>
</beans>
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>
<!-- Names the annotated entity class -->
<mapping class="org.rohith.model.Customer"/>
</session-factory>
</hibernate-configuration>
CustomerServiceImpl.java
package org.rohith.service.impl;
import org.rohith.dao.impl.CustomerDaoImpl;
import org.rohith.model.Customer;
import org.rohith.service.CustomerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
#Service
public class CustomerServiceImpl implements CustomerService {
#Autowired
private CustomerDaoImpl customerDaoImpl;
#Override
public void saveCustomer(Customer customer) {
customerDaoImpl.saveCustomer(customer);
}
public CustomerDaoImpl getCustomerDaoImpl() {
return customerDaoImpl;
}
public void setCustomerDaoImpl(CustomerDaoImpl customerDaoImpl) {
this.customerDaoImpl = customerDaoImpl;
}
}
CustomerDaoImpl.java
package org.rohith.dao.impl;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.rohith.dao.CustomerDao;
import org.rohith.model.Customer;
public class CustomerDaoImpl implements CustomerDao {
private SessionFactory sessionFactory;
#Override
public void saveCustomer(Customer customer) {
Session session = getSession();
session.clear();
try {
session.saveOrUpdate(customer);
session.flush();
} catch (Throwable e) {
throw new RuntimeException(e.getMessage(), e);
}
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public SessionFactory getSessionFactory() {
return this.sessionFactory;
}
public Session getSession() throws HibernateException {
Session sess = getSessionFactory().getCurrentSession();
if (sess == null) {
sess = getSessionFactory().openSession();
}
// Session sess = getSessionFactory().openSession();
return sess;
}
}
CustomerAction.java
public class CustomerAction extends ActionSupport{
private String name;
private String addr1;
private String addr2;
private String city;
private String state;
private CustomerServiceImpl customerServiceImpl;
//Getters and setters
public String execute(){
Customer cust= new Customer();
cust.setName(name);
cust.setAddress1(addr1);
cust.setAddress2(addr2);
cust.setCity(city);
cust.setState(state);
System.out.println(name);
WebApplicationContext webApplicationContext = WebApplicationContextUtils
.getRequiredWebApplicationContext(getRequest().getSession()
.getServletContext());
customerServiceImpl = (CustomerServiceImpl) webApplicationContext.getBean("customerServiceImpl");
customerServiceImpl.saveCustomer(cust);
//saveCust(cust);
return "success";
}
protected HttpServletRequest getRequest() {
return ServletActionContext.getRequest();
}
protected HttpServletResponse getResponse() {
return ServletActionContext.getResponse();
}
}
The Exception I am getting
org.hibernate.HibernateException: No Session found for current thread
org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)
org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:978)
org.rohith.dao.impl.CustomerDaoImpl.getSession(CustomerDaoImpl.java:33)
org.rohith.dao.impl.CustomerDaoImpl.saveCustomer(CustomerDaoImpl.java:16)
org.rohith.service.impl.CustomerServiceImpl.saveCustomer(CustomerServiceImpl.java:18)
org.rohith.CustomerAction.execute(CustomerAction.java:36)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)

You have a transaction manager specified in your Spring config, but no configuration on when or where to apply transactions.
In your SpringBean.xml you should uncomment <tx:annotation-driven/>:
<tx:annotation-driven transaction-manager="transactionManager"/>
And then you should annotate the CustomerServiceImpl.saveCustomer method as #Transactional:
#Service
public class CustomerServiceImpl implements CustomerService {
...
#Override
#Transactional
public void saveCustomer(Customer customer) {
customerDaoImpl.saveCustomer(customer);
}
...
}

Add the following property in your hibernate.cfg.xml file for Hibernate 4.
<property name="hibernate.current_session_context_class">thread</property>

Add #EnableTransactionManagement annotation in your java configuration file if your configuration based on annotation without xml.
This may help someone

You can add in hibernate.proerties below value. It's worked for me.
hibernate.current_session_context_class=org.springframework.orm.hibernate4.SpringSessionContext
or
hibernate.current_session_context_class=thread