在下是一 Acegi 菜鸟，刚学习没多久。仿照网上的资料做了一个 Acegi 登陆的测试页面，但好像不起作用，对要保护的资源确实进行了过滤，不经登陆不能访问，但是我现在登陆不了，输入登陆信息后总是被返回到登陆页面。大家能否帮忙看看究竟是哪里出了问题？
我的 Acegi 配置信息如下：
- XML code
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="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-2.0.xsd"> <bean id="authenticationProcessingFilter" class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter"> <property name="authenticationManager" ref="authenticationManager" /> <property name="authenticationFailureUrl" value="/login.html" /> <property name="defaultTargetUrl" value="/admin/admin.html" /> <property name="filterProcessesUrl" value="j_acegi_security_check" /> </bean> <bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager"> <property name="providers"> <list> <ref local="daoAuthenticationProvider" /> </list> </property> </bean> <bean id="daoAuthenticationProvider" class="org.acegisecurity.providers.dao.DaoAuthenticationProvider"> <property name="userDetailsService" ref="inMemoryDaoImpl" /> </bean> <bean id="inMemoryDaoImpl" class="org.acegisecurity.userdetails.memory.InMemoryDaoImpl"> <property name="userMap"> <value> demo=demo,ROLE_USER user=user,ROLE_USER admin=admin,ROLE_SUPERVISOR </value> </property> </bean> <bean id="exceptionTranslationFilter" class="org.acegisecurity.ui.ExceptionTranslationFilter"> <property name="authenticationEntryPoint"> <bean class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilterEntryPoint"> <property name="loginFormUrl" value="/login.html" /> <property name="forceHttps" value="false" /> </bean> </property> <property name="accessDeniedHandler"> <bean class="org.acegisecurity.ui.AccessDeniedHandlerImpl"> <property name="errorPage" value="/accessDenied.html" /> </bean> </property> </bean> <bean id="filterSecurityInterceptor" class="org.acegisecurity.intercept.web.FilterSecurityInterceptor"> <property name="authenticationManager" ref="authenticationManager" /> <property name="accessDecisionManager" ref="accessDecisionManager" /> <property name="objectDefinitionSource"> <value> CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON PATTERN_TYPE_APACHE_ANT /admin/** = ROLE_SUPERVISOR </value> </property> </bean> <bean id="accessDecisionManager" class="org.acegisecurity.vote.AffirmativeBased"> <property name="allowIfAllAbstainDecisions" value="false" /> <property name="decisionVoters"> <list> <bean class="org.acegisecurity.vote.RoleVoter" /> </list> </property> </bean> <bean id="filterChainProxy" class="org.acegisecurity.util.FilterChainProxy"> <property name="filterInvocationDefinitionSource"> <value> CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON PATTERN_TYPE_APACHE_ANT /** = authenticationProcessingFilter, exceptionTranslationFilter, filterSecurityInterceptor </value> </property> </bean> </beans>