我最近将大部分 Spring 配置切换为使用 Spring 3.1 中基于代码的配置。但是，现在我已经切换，我的 Spring Security 无法正常工作，并在 Tomcat 启动时引发以下错误：
SEVERE: Exception starting filter springSecurityFilterChain
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'springSecurityFilterChain' is defined
我仍然在 XML 文件中有 Spring Security，并且知道它不能在 Spring 中转换为 Java 配置，因为它是一个自定义命名空间，但是，我在我的 Java 配置文件中引用它。我还尝试将 applicationContext-security.xml 配置引用从 Java 配置移动到我的 web.xml，但没有任何运气。
@Configuration
@EnableWebMvc
@Import(ServicesConfig.class)
@ImportResource({ "classpath:applicationContext-security.xml",
"classpath:dataSources.xml" })
@ComponentScan(basePackages = "com.foobar")
public class WebConfig {
// left out Beans for clarity
}
applicationContext-security.xml：
<b:beans xmlns="http://www.springframework.org/schema/security"
xmlns:b="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p" xmlns:c="http://www.springframework.org/schema/c"
xmlns:oauth2="http://www.springframework.org/schema/security/oauth2"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd
http://www.springframework.org/schema/security/oauth2
http://www.springframework.org/schema/security/spring-security-oauth2.xsd">
<!-- Security configuration -->
<global-method-security pre-post-annotations="enabled" />
<http use-expressions="true" access-denied-page="/error/accessDenied"
entry-point-ref="casEntryPoint">
<intercept-url pattern="/**" access="isAuthenticated()" />
<custom-filter position="CAS_FILTER" ref="casFilter" />
</http>
<authentication-manager alias="authenticationManager">
<authentication-provider ref="casAuthenticationProvider" />
</authentication-manager>
<!-- Bean definitions -->
<b:bean id="casAuthenticationProvider"
class="org.springframework.security.cas.authentication.CasAuthenticationProvider"
p:serviceProperties-ref="serviceProperties" p:key="1234"
p:authenticationUserDetailsService-ref="userDetailsByNameServiceWrapper"
p:ticketValidator-ref="cas20ServiceTicketValidator" />
<b:bean id="userDetailsByNameServiceWrapper"
class="org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper"
c:userDetailsService-ref="userDetailsService" />
<b:bean id="userDetailsService" class="foobar.MyUserDetailsService" />
<b:bean id="cas20ServiceTicketValidator"
class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator"
c:casServerUrlPrefix="https://mycasserver/cas" />
<b:bean id="casFilter"
class="org.springframework.security.cas.web.CasAuthenticationFilter"
p:authenticationManager-ref="authenticationManager" />
<b:bean id="casEntryPoint"
class="org.springframework.security.cas.web.CasAuthenticationEntryPoint"
p:loginUrl="https://mycasserver/cas/login"
p:serviceProperties-ref="serviceProperties" />
<b:bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties"
p:service="https://foobar.com/services/j_spring_cas_security_check"
p:sendRenew="false" />
</b: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">
<description>My App</description>
<!-- Context Params -->
<context-param>
<param-name>contextClass</param-name>
<param-value>
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>foobar.WebConfig</param-value>
</context-param>
<!-- 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>
<!-- Listeners -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Servlets -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>