I realize this question has been asked many times, but those answers don't seem to get me working.
The class which has the #Autowired field:
#Component
public class SpecialClaimsCaseManager {
#Autowired
private SpecialClaimsCaseRepositoryService<SpecialClaimsCaseDto> service;
public SpecialClaimsCaseManager() {
}
public Collection<SpecialClaimsCase> findAll() {
return convertToSpecialClaimsCase(service.findAll());
}
The interface SpecialClaimsCaseRepositoryService
public interface SpecialClaimsCaseRepositoryService<C extends SpecialClaimsCaseDto> {
//Some method signatures, not relevant
The implementation class (what should be injected)
#Service("specialClaimsCaseRepositoryService")
public class SpecialClaimsCaseRepositoryServiceImpl implements SpecialClaimsCaseRepositoryService<SpecialClaimsCaseDto> {
//Some method implementations, not relevant
mvcDispatcher.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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
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="com.redacted.sch"/>
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:annotation-driven />
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>SpecialClaimsHandling</display-name>
<!-- Spring Configuration Files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
WEB-INF/application-security.xml
classpath*:sch_model_spring.xml
</param-value>
</context-param>
<!-- Spring Security Filters -->
<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>
<!-- Spring Listeners -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- MVC Filter -->
<servlet>
<servlet-name>mvcDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvcDispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<!-- Session Configuration -->
<session-config>
<session-timeout>5</session-timeout>
</session-config>
</web-app>
sch_model_spring.xml (in another project)
<?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/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.redacted.sch.model"/>
<tx:annotation-driven />
<tx:jta-transaction-manager />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.ibm.db2.jcc.DB2Driver" />
<property name="url" value="redacted" />
<property name="username" value="redacted" />
<property name="password" value="redacted" />
</bean>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="schManager" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
</beans>
Full stack trace (fpasted because it's pretty long) http://fpaste.org/116696/14049194/
So, as we can see, mvc:annotation-driven is enabled, and autowiring is enabled. If I understand this correctly (I might not, pretty new to Spring), this should be all I need. SpecialClaimsCaseRepositoryService is an interface, if that matters, though I don't think it should as this same #Autowiring worked fine in another class annotated with #Controller.
Thanks for any help!
You'll notice from your stack trace that the exception occurs in the process of initializing the root application context loaded by the ContextLoaderListener. That's taken from
<!-- Spring Configuration Files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
WEB-INF/application-security.xml
classpath*:sch_model_spring.xml
</param-value>
</context-param>
In those two, you are scanning
<context:component-scan base-package="com.redacted.sch.model"/>
but not the com.redacted.sch.service... package that is required by one of the beans.
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.redacted.sch.service.SpecialClaimsCaseRepositoryService com.redacted.sch.model.SpecialClaimsCaseManager.specialClaimsCaseRepositoryService;
In this case, xyz.model.SpecialClaimsCaseManager has an #Autowired field of type xyz.service.SpecialClaimsCaseRepositoryService, but no such bean exists.
Don't mix component-scanned folders between application contexts, those loaded by ContextLoaderListener vs DispatcherServlet. Refactor so that application beans are loaded by the ContextLoaderListener and controller-related beans are loaded by the DispatcherServlet.
Reading:
Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
Related
I am getting null value when trying to inject it using #Value injection in clas annotated by #Service Class but i am able to get values for same properties in class annotated by #Service
I am using Spring 4.2 vesion
web.xml is as follow:::
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name></display-name>
<servlet>
<servlet-name>CaptchaServlet</servlet-name>
<servlet-class>com.cdac.sikkimSprings.servlets.CaptchaServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CaptchaServlet</servlet-name>
<url-pattern>/captcha.jpg</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>SpringController</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringController</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/beans.xml
/WEB-INF/spring-security.xml
</param-value>
</context-param>
<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>
springMVC.xml is as follow
<?xml version="1.0" encoding="UTF-8"?>
<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-4.0.xsd
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:component-scan base-package="com.basePackage" />
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<context:property-placeholder location="classpath:properties/development.properties" order="1"/>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
</beans>
i also have beans.xml for bean definitions which is as follow
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.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/test" /> <property name="username"
value="root" /> <property name="password" value="password" /> </bean> -->
//Bean definition mentioned below is the same class where i need the property values to be injected
which is annotated by #Service annotation
<bean id="userManagement"
class="com.basepackage.userManagement">
</bean>
</beans>
Below is actual java class where values are needed to be injected
#Service("userManagementService")
#Transactional
public class userManagement implements RetrieveUserListService{
//This value is not getting injected
#Value("${registrationstatus_registered}")
String statusRegistered;
#Value("${registrationstatus_pending}")
String statusPending;
#Override
public List<ShowUserListPOJO> RetrieveUserList(HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
//here the required value is null
System.out.println(statusRegistered);
return null;
}
//Code bellow is skipped...
Same values i am injecting in class below here they are injected properly
#Controller
public class UserManagement {
#Value( "${registrationstatus_registered}" )
String registrationstatus;
#RequestMapping(value="/userManagement", method = RequestMethod.GET)
public void userManagement(HttpServletRequest request,HttpServletResponse response) {
//here value is prnted properly
System.out.println(registrationstatus);
//......Code below skipped
}
development.properties is as follow
registrationstatus_registered = registered
registrationstatus_pending = pending
In your application you have two spring contexts: root application context (ContextLoaderListener) and web application context(DispatcherServlet). You need to understand the difference between them. Read here .
If you move your property resource definition to beans.xml(which is used for root context), your property value will be injected correctly throughout the application.
move this bean difinition to beans.xml
<context:property-placeholder location="classpath:properties/development.properties" order="1"/>.
I'm setting up a new SPring4 app using Thymeleaf and keep encountering the same issue when it comes to returning the view. I've searched don here and followed some online tutorials but the same error so I'm thinking it may be due to configuration, any help is appreciated, thanks.
The error : org.thymeleaf.exceptions.TemplateInputException: Error resolving template "index", template might not exist or might not be accessible by any of the configured Template Resolvers
And then my config is:
Web.xml:
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Use the simplified configuration by default. -->
<context-param>
<param-name>spring.profiles.default</param-name>
<param-value>simple</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>Test</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
<init-param>
<param-name>spring.profiles.default</param-name>
<param-value>simple</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<display-name>Test Web Application</display-name>
mcv.xml:
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns="http://www.springframework.org/schema/beans"
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">
<mvc:annotation-driven/>
<!--Allows for static content to easily be served up without needing a controller etc-->
<mvc:resources mapping="/images/**" location="/assets/img/"/>
<mvc:resources mapping="/css/" location="/assets/css/"/>
<mvc:resources mapping="/assets/**" location="/assets/"/>
<!--taken from the thymeleaf site-->
<bean id="templateResolver"
class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".html" />
<property name="templateMode" value="HTML5" />
<property name="cacheable" value="false" />
</bean>
<bean id="templateEngine"
class="org.thymeleaf.spring4.SpringTemplateEngine">
<property name="templateResolver" ref="templateResolver" />
</bean>
<bean class="org.thymeleaf.spring4.view.ThymeleafViewResolver">
<property name="templateEngine" ref="templateEngine" />
</bean>
</beans>
rootcontext.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"
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.xsd">
<import resource="mvc.xml" />
<!--double asterisk allows for recursive search - load all under the pacakge-->
<context:component-scan
base-package="
com.example.*"/>
<context:property-placeholder location="classpath:application.properties"/>
</beans>
Edit:
Controller:
#Controller //restcontroller is not meant to be for returning view, but instead the data http://stackoverflow.com/questions/33062509/returning-view-from-spring-mvc-restcontroller
#EnableAutoConfiguration
public class EmrController {
#Autowired EmrService emr;
#ModelAttribute("emrClusterList")
private List<EmrCluster>getAllClusters(){ return emr.getRunningClusters(); }
#RequestMapping(value = "/EmrClusters", method = RequestMethod.GET)
public String displayEmrList(Model model){
model.addAttribute("emrClusterList", emr.getRunningClusters());
return "index";
}
I have the Web.xml as below:
<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>
<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>/api/secure/*</url-pattern>
</filter-mapping>
[Edit]
After I added the spring security, then I get the error!
java.lang.IllegalStateException: No WebApplicationContext found: no
ContextLoaderListener registered?
then I added
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
then it seems working fine, but then
1) The problem is the bean are created twice!
if I only remove that:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml
</param-value>
</context-param>
but leave the <listener> then the web application doesn't run at all
[Extra]
The full Web.xml is below:
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Spring MVC Application</display-name>
<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>
<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>/api/secure/*</url-pattern>
</filter-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
here is my mvc-dispatcher-servlet.xml
<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"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:security="http://www.springframework.org/schema/security"
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.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<mvc:annotation-driven/>
<context:annotation-config/>
<context:component-scan base-package="com.ge.wtracker"/>
<context:property-placeholder location="classpath*:META-INF/spring/*.properties"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!--Java Persistence API config-->
<jpa:repositories base-package="com.ge.wtracker.repository"/>
<!--JPA and Database Config-->
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="defaultPersistenceUnit"/>
<property name="dataSource" ref="dataSource"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" id="dataSource">
<property name="driverClassName" value="${database.driverClassName}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="testOnBorrow" value="true"/>
<property name="testOnReturn" value="true"/>
<property name="testWhileIdle" value="true"/>
<property name="timeBetweenEvictionRunsMillis" value="1800000"/>
<property name="numTestsPerEvictionRun" value="3"/>
<property name="minEvictableIdleTimeMillis" value="1800000"/>
<property name="validationQuery" value="SELECT 1"/>
</bean>
<!--Spring Security-->
<security:http create-session="stateless" entry-point-ref="restAuthenticationEntryPoint" authentication-manager-ref="authenticationManager">
<security:intercept-url pattern="/api/secure/**" access="ROLE_USER" />
<security:custom-filter ref="customRestFilter" position="BASIC_AUTH_FILTER" />
</security:http>
<!-- Configures the authentication entry point that returns HTTP status code 401 -->
<bean id="restAuthenticationEntryPoint" class="com.ge.wtracker.web.security.RestAuthenticationEntryPoint">
<property name="realmName" value="Not Authorized" />
</bean>
<security:authentication-manager alias="authenticationManager">
<security:authentication-provider ref="restAuthenticationProvider" />
</security:authentication-manager>
<!--The customRestFilter responsibles for retrieving and manipulating any request data to pass to the authentication
provider to authenticate.-->
<bean id="customRestFilter" class="com.ge.wtracker.web.security.RestSecurityFilter">
<constructor-arg name="authenticationManager" ref="authenticationManager" />
<constructor-arg name="authenticationEntryPoint" ref="restAuthenticationEntryPoint" />
</bean>
<bean id="restAuthenticationProvider" class="com.ge.wtracker.web.security.RestAuthenticationProvider" />
</beans>
During the servlet container lifecycle, the container first initializes the ServletContextListener, then the Filter and Servlet instances.
A Spring Web application typically loads two contexts: the root context and the dispatcher servlet context. The ContextLoaderListener class is a ServletContextListener which loads the application (or root) context. It identifies the file to load either through the context-param with the name contextConfigLocation as given in the web.xml like below
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml
</param-value>
</context-param>
or, by default, by looking for a file at /WEB-INF/applicationContext.xml. Since you've specified /WEB-INF/mvc-dispatcher-servlet.xml as the contextConfigLocation, that context will be loaded.
Once this is done, the container initializes the DispatcherServlet, which also loads a context. It identifies the file load either through an init-param element with the name contextConfigLocation as given in the web.xml below
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/some-random-location.xml</param-value>
</init-param>
</servlet>
or, by default, by looking for a file at /WEB-INF/name-of-your-servlet-servlet.xml. In other words, it takes the value of the <servlet-name> element and appends -servlet.xml to it and looks for it in WEB-INF.
Since you haven't specified an init-param with name contextConfigLocation, the DispatcherServlet loads the context file at /WEB-INF/mvc-dispatcher-servlet.xml, since its name is mvc-dispatcher. The context loaded by the DispatcherServlet has access to the beans loaded by the ContextLoaderListener, that's why we call that the root context (and the others children).
All this to say that both your ContextLoaderListener and your DispatcherServlet are creating their own copy of an ApplicationContext by each loading a XmlWebApplicationContext from the same file at /WEB-INF/mvc-dispatcher-servlet.xml.
Identify what beans or configuration you think should be available to the whole application and put them in the file that will be loaded by the ContextLoaderListener. Identify the beans or configuration you think should be available to the DispatcherServlet and put them in its context file.
http://docs.spring.io/spring/docs/3.0.0.M3/reference/html/ch16s02.html
The framework will, on initialization of a DispatcherServlet, look for
a file named [servlet-name]-servlet.xml in the WEB-INF directory of
your web application and create the beans defined there (overriding
the definitions of any beans defined with the same name in the global
scope).
So you can remove the context-param:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml
</param-value>
</context-param>
Spring MVC then create a new any-name.xml and place context specific beans like
Spring-security.xml and for your security bean to load.
New xml will be like this
<?xml version="1.0" encoding="UTF-8"?>
<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"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.1.xsd">
<mvc:annotation-driven/>
<context:component-scan base-package="com"/>
<task:annotation-driven/>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.
config.PropertyPlaceholderConfigurer">
<property name="location" value=""/>
<property name="locations">
<list>
<value>/WEB-INF/jdbc.properties</value>
</list>
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.databaseurl}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
</beans>
and now include this in web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/login-security.xml,
/WEB-INF/application-context.xml
</param-value>
</context-param>
hope this will help you.
Sorry if I mess up with my question, I am just getting started configuring MVC, Spring, etc....
The issue that I am running into is that in my Spring MVC project all of my Autowired services are being successfully autowired when my application deploys (verified by setting breakpoints in Spring Tool Suite), but when I try to invoke a autowired service's method I run into a NullPointerException. I have looked all over at different configuration files and it seems like my servelt-context, root-context and web XML files should be ok (don't quote me on that and they are included below).
I am wondering if somehow I am not invoking the instance of the service created at deploy time? It seems strange that the Autowired setters can be called successfully but then the services end up being null. Any help you can provide is greatly appreciated!
root-context.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: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-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.OracleDialect
</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="packagesToScan" value="com.byteslounge.spring.tx.model" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDrive" />
<property name="url"
value="jdbc:oracle:thin:#**********" />
<property name="username" value="*******" />
<property name="password" value="*******" />
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="dataSource" ref="dataSource" />
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven />
<context:annotation-config />
<bean
class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<context:component-scan base-package="com.clm.billing" />
servelt-context.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc"
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">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC #Controller programming model -->
<mvc:annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<mvc: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:beans>
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>OrderList</display-name>
<servlet-name>OrderList</servlet-name>
<servlet-class>com.clm.billing.Oracle.OrderList</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>OrderList</servlet-name>
<url-pattern>/OrderList</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>EditBilling</display-name>
<servlet-name>EditBilling</servlet-name>
<servlet-class>com.clm.billing.EditBilling</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>EditBilling</servlet-name>
<url-pattern>/EditBilling</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>UpdateBilling</display-name>
<servlet-name>UpdateBilling</servlet-name>
<servlet-class>com.clm.billing.UpdateBilling</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UpdateBilling</servlet-name>
<url-pattern>/UpdateBilling</url-pattern>
</servlet-mapping>
</web-app>
InsuranceNoteDBServiceImpl:
(Here the setiNoteDAO is called with a instance of the iNoteDAO class, but when getNoteById is called iNoteDAO is null)
#Service
public class InsuranceNoteDBServiceImpl implements InsuranceNoteDBService {
private InsuranceNoteDAO iNoteDAO;
#Autowired
public void setiNoteDAO(InsuranceNoteDAO iNoteDAO) {
this.iNoteDAO = iNoteDAO;
}
#Override
#Transactional
public void insertNote(BillerNote note) {
iNoteDAO.insertNote(note);
}
#Override
#Transactional
public BillerNote getNoteById(int noteId) {
return iNoteDAO.getNoteById(noteId);
}
}
InsuranceNoteDBService:
public interface InsuranceNoteDBService {
void insertNote(BillerNote note);
BillerNote getNoteById(int noteId);
}
InsuranceNoteDAOImpl:
(Same thing happens here with the init() method that is setting the session factory)
#Service
public class InsuranceNoteDAOImpl implements InsuranceNoteDAO {
public SessionFactory sessionFactory;
#Autowired
public void init(SessionFactory factory) {
setSessionFactory(factory);
}
public void setSessionFactory(SessionFactory factory) {
this.sessionFactory = factory;
}
#Override
public void insertNote(BillerNote note) {
sessionFactory.getCurrentSession().save(note);
}
#Override
public BillerNote getNoteById(int noteId) {
return (BillerNote) sessionFactory.
getCurrentSession().
get(BillerNote.class, noteId);
}
}
InsuranceNoteDAO:
public interface InsuranceNoteDAO {
void insertNote(BillerNote note);
BillerNote getNoteById(int noteId);
}
Remove the init method and annotate the setter :
#Autowired
public void setSessionFactory(SessionFactory factory) {
this.sessionFactory = factory;
}
I am using this in my UserDAO and hibernate
#Resource(name="sessionFactory");
public SessionFactory sessionFactory;
For some reason i am not able to link spring beans in my userDAO from 2 different classes.
What is the other alternative of above code i mean something like
SessionFactory sessionFactory = new Sessionfactory()
is that ok
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>testing</display-name>
<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>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring-security.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>/krams/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
dispatcher-servlet
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<import resource="hibernate-context.xml" />
<mvc:annotation-driven />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource" p:basename="messages" />
<context:component-scan base-package="com.vaannila" />
<bean id="userService" class="com.vaannila.service.UserServiceImpl" />
<bean id="userValidator" class="com.vaannila.validator.UserValidator" />
<bean id="registrationDAO" class="com.vaannila.dao.RegistrationDAO" />
<bean id="userDAO" class="com.vaannila.dao.UserDAO" />
<bean id="velocityEngine" class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
<property name="velocityProperties">
<value>
resource.loader=class
class.resource.loader.class=org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
</value>
</property>
</bean>
</beans>
hibernate-context
<?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:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
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/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
">
<context:property-placeholder location="/WEB-INF/spring.properties" />
<!-- Enable annotation style of managing transactions -->
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- Declare the Hibernate SessionFactory for retrieving Hibernate sessions -->
<!-- See http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/orm/hibernate3/annotation/AnnotationSessionFactoryBean.html -->
<!-- See http://docs.jboss.org/hibernate/stable/core/api/index.html?org/hibernate/SessionFactory.html -->
<!-- See http://docs.jboss.org/hibernate/stable/core/api/index.html?org/hibernate/Session.html -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSource"
p:configLocation="${hibernate.config}"
p:packagesToScan="com.vaannila"/>
<!-- Declare a datasource that has pooling capabilities-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close"
p:driverClass="${app.jdbc.driverClassName}"
p:jdbcUrl="${app.jdbc.url}"
p:user="${app.jdbc.username}"
p:password="${app.jdbc.password}"
p:acquireIncrement="5"
p:idleConnectionTestPeriod="60"
p:maxPoolSize="100"
p:maxStatements="50"
p:minPoolSize="10" />
<!-- Declare a transaction manager-->
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
</beans>
No, that is not OK. The fresh SessionFactory won't be initialized properly (it lacks all the required configurations that you have set in applicationContext.xml).
So make sure you have a bean named sessionFactory and <context:component-scan .. />
Also note that beans defined in dispatcher-servlet.xml are not visible for beans defined in applicationContext.xml
No that is not ok.
You can use autowire feature of spring.
In case you don't like to use annotation for linking, consider using application-context.xml for linking(injecting) your sessionFactory.
You are not providing enough context. I don't even understand what your problem is, nor what's not working. Please show some configuration and some output.
But:
SessionFactory sessionFactory = new Sessionfactory()
If you are using code like this, there's no point of using an IOC container like Spring in the first place, because you are missing out on the key concept, dependency injection.