l objeto @@ Autowired obtiene un valor nulo en una clase, mientras que se conecta con éxito en otra
Estoy trabajando en un proyecto con Spring 3 y Spring Security. Mi problema es con el contenedor IoC. El problema comenzó cuando escribí mi propia implementación deUserDetailsService para Spring Security-3. Revisé las otras preguntas pero aún no pude resolver el problema.
La definición del problema es:
Tengo dos clases separadas (una esUsersController.java que se extiende@Controller yProjectUserDetailsService que se extiende@Service) que utiliza un objeto común para ser autoconectado. Pero mientras el objeto se conecta automáticamente con éxito enUsersController, estánull inProjectUserDetailsService clase aunque el objeto de esta clase ProjectUserDetailsService) se creó correctamente (verifiqué esto mediante depuración).
¿Alguna sugerencia de cómo resolver esto?
Aquí estan misweb.xml, project-servlet.xml yproject-security.xml archivos y clases relacionadas.
Web.xml`
<?xml version="1.0" encoding="UTF-8"?>
<!--
- Tutorial web application
-
-->
<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">
<display-name>Ecognitio with Spring Security</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/ecognitio-servlet.xml
/WEB-INF/ecognitio-security.xml
</param-value>
</context-param>
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>tutorial.root</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>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
</listener>
<servlet>
<servlet-name>ecognitio</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>project</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>project</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
project-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package="com.project" />
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven />
<bean id="messageSource"
class="org.springframework.context.support.ResourceBundleMessageSource"
p:basename="Messages"/>
<!-- misc -->
<!-- <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="suffix" value=".jsp"/>
</bean> -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass">
<value>
org.springframework.web.servlet.view.tiles2.TilesView
</value>
</property>
</bean>
<bean id="tilesConfigurer"
class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/tiles.xml</value>
</list>
</property>
</bean>
<!-- Configures Hibernate - Database Config -->
<import resource="db-config.xml" />
</beans>
project-security.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
- Sample namespace-based configuration
-
-->
<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-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<debug />
<global-method-security pre-post-annotations="enabled">
<!-- AspectJ pointcut expression that locates our "post" method and applies security that way
<protect-pointcut expression="execution(* bigbank.*Service.post*(..))" access="ROLE_TELLER"/>
-->
</global-method-security>
<http pattern="/loggedout.jsp" security="none"/>
<http use-expressions="true" >
<intercept-url pattern="/secure/extreme/**" access="hasRole('ROLE_SUPERVISOR')"/>
<intercept-url pattern="/secure/**" access="isAuthenticated()" />
<!--
Allow all other requests. In a real application you should
adopt a whitelisting approach where access is not allowed by default
-->
<intercept-url pattern="/login.jsp*" access="isAuthenticated()==false"/>
<intercept-url pattern="/timeout.jsp*" access="isAuthenticated()==false"/>
<intercept-url pattern="/**" access="hasRole('ROLE_USER')" />
<!-- <intercept-url pattern="/**" access="permitAll" /> -->
<form-login login-page="/login.jsp" authentication-failure-url="/login.jsp?login_error=1" default-target-url="/dashboard.html" />
<logout logout-success-url="/login.jsp" delete-cookies="JSESSIONID"/>
<remember-me />
<!--
Uncomment to enable X509 client authentication support
<x509 />
-->
<!-- Uncomment to limit the number of sessions a user can have
<session-management invalid-session-url="/login.jsp">
<concurrency-control max-sessions="1" error-if-maximum-exceeded="true" />
</session-management>
-->
</http>
<!-- HERE IS WHERE I USE an object of ProjectUserDetailsService -->
<authentication-manager>
<authentication-provider user-service-ref="userDetailsService" />
</authentication-manager>
<!--
</beans:beans>
UsersController.java (el cableado automático de un objeto de la clase UsersDAO es exitoso para esta clase)
package com.project.users;
//required imports
@Controller
public class UsersControllers
{
@Autowired
private UsersDAO usersDAO;
//Some more autowires and some class specific code
}
ProjectUserDetailsService.java (donde el cableado automático de UsersDAO no funciona)
package com.project.security;
import java.util.ArrayList;
import java.util.Collection;
//required imports
@SuppressWarnings("deprecation")
@Service("userDetailsService")
public class ProjectUserDetailsService implements UserDetailsService {
@Autowired
private UsersDAO usersDAO;
@Autowired private Assembler assembler;
@Transactional(readOnly = true)
public UserDetails loadUserByUsername(String username)
throws UsernameNotFoundException, DataAccessException {
UserDetails userDetails = null;
//For debugging purposes
if(usersDAO==null){
System.out.println("DAO IS NULL");
System.out.println("DAO IS NULL");
System.out.println("DAO IS NULL");
}
User userEntity = usersDAO.findUserbyEmail("'"+username+"'");
if (userEntity == null)
throw new UsernameNotFoundException("user not found");
return assembler.buildUserFromUserEntity(userEntity);
}
}