我正在使用Spring 3和Spring Security开发一个项目。我的问题是IoC容器。当我为Spring Security-3编写自己的UserDetailsService
实现时,问题就出现了。我检查了其他问题,但仍无法解决问题。
问题的定义是:
我有两个单独的类(一个UsersController.java
扩展@Controller
,ProjectUserDetailsService
扩展@Service
,它使用一个公共对象进行自动装配。但是,虽然对象在UsersController
中成功自动装配,但null
类中的ProjectUserDetailsService
已成功创建此类(ProjectUserDetailsService
)的对象(我通过调试验证了这一点)
有任何建议如何解决这个问题?
以下是我的web.xml
,project-servlet.xml
和project-security.xml
文件及相关课程。
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
(此类的UsersDAO类对象的自动装配成功)
package com.project.users;
//required imports
@Controller
public class UsersControllers
{
@Autowired
private UsersDAO usersDAO;
//Some more autowires and some class specific code
}
ProjectUserDetailsService.java
(用户DAO的自动装配不起作用)
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);
}
}
答案 0 :(得分:4)
是的,似乎不可能将对象自动装入从spring安全类继承的bean中。我不知道这是否是春季安全方面的错误,或者是否为安全性做了什么。如果有人有解释我会有兴趣听到它。您可以通过xml配置手动注入bean(而不是使用@Autowired注释)来解决您的问题,然后它们就会出现。但是要注意一点......
我这样做了,我注意到我的userDao上有注释(特别是@Transactional)不再在事务中运行。我的userDao被用于多个地方。如果我将它注入我的自定义AbstractUserDetailsAuthenticationProvider,它不再在任何其他使用它的类的事务中操作。将注入删除到自定义的AbstractUserDetailsAuthenticationProvider中,当其他正在接收它的对象(通过@Autowired或手动xml注入)使用时,将事务功能恢复到我的userDao。
那么我如何将我的userDao引入我的Spring Security上下文并仍保留@Transactional?我必须创建一个Factory类:
public class UserDaoFactory {
private static UserDao userDao;
public static UserDao getUserDao() {
return UserDaoFactory.userDao;
}
public void setUserDao(UserDao userDao) {
UserDaoFactory.userDao = userDao;
}
}
然后将此和你的dao两个对象放入弹簧容器中:
<bean id="userDao" class="com.package.UserDaoImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="userDaoFactory" class="com.package.UserDaoFactory">
<property name="userDao" ref="userDao" />
</bean>
因此userDao将自动装入您的userDaoFactory。它将拥有它所有的@Transactional功能(因为Spring安全性没有剥离它?)。然后在你的spring安全对象中你可以做一个:
userDao = UserDaoFactory.getUserDao();
我在我的自定义AbstractUserDetailsAuthenticationProvider对象中实现了ServletContextAware,以便在初始化期间执行上述操作,并使用中提琴。
请注意,虽然您可以通过xml配置将bean手动注入spring安全对象以克服@Autowired问题,但如果您尝试将该DAO包装在@Transactional中,则最终会遇到新问题。
现在也许有人知道为什么会这样。这可能是我的错误配置(我承认我不是春天专家),或者它可能是春天的特征。我很想听听别人有什么要说的,以及如何改善这一点。
答案 1 :(得分:1)
由于第二个bean不在project-servlet.xml
中指定的指定bean注释包组件扫描中:
<context:component-scan base-package="com.project" />
它不认为它是一项服务,也不会翻译注释。
您需要进一步扩展它或将其移动到以com.project开头的包中,或者像这样:
<context:component-scan base-package="com" />
答案 2 :(得分:1)
我不知道为什么:(但是从project-security.xml中删除标签并且可以正常工作!
答案 3 :(得分:0)
这可能是由于SEC-1911导致在依赖像AutowiredAnnotationBeanPostProcessor
之类的BeanPostProcessors并使用<debug />
元素时导致问题。尝试删除<debug />
并查看@Autowired是否再次有效。请注意,第一个问题是SEC-1885的副本,这是修复的地方,但第一个问题的症状更符合此问题。
答案 4 :(得分:-2)
我遇到了同样的问题。虽然这可以通过多种方式实现,但就我而言,我创建了一个新对象,而不是使用autowired
。即:
private Service service = new ServiceImpl();
而不是:
@Autowired private Service service;
这不是使用存储库注入的服务,而是在控制器之上。