springsecurity2 自定义filter实现

配置

<global-method-security />

	<http auto-config="false" entry-point-ref="authenticationProcessingFilterEntryPoint">
		<intercept-url pattern="/login.action*" filters="none" />
		<intercept-url pattern="/index.action*" access="ROLE_COMPANY" />
		<intercept-url pattern="/user.action*" access="ROLE_USER" />
		<logout/>
		<remember-me/>
	</http>

	<authentication-provider user-service-ref="customUserDetailsService" />

	<beans:bean id="customUserDetailsService" class="com.jrd.security.CustomerUserDetailService" />

	<beans:bean id="authenticationProcessingFilter" class="com.jrd.security.MyAuthenticationProcessingFilter">
		<custom-filter position="AUTHENTICATION_PROCESSING_FILTER" />
		<beans:property name="defaultTargetUrl" value="/logined.action" />
		<beans:property name="authenticationManager" ref="authenticationManager" />
	</beans:bean>

	<authentication-manager alias="authenticationManager" />

	<beans:bean id="authenticationProcessingFilterEntryPoint" class="org.springframework.security.ui.webapp.AuthenticationProcessingFilterEntryPoint">
		<beans:property name="loginFormUrl" value="/login.action" />
		<beans:property name="forceHttps" value="false" />
	</beans:bean>

2.

public class MyAuthenticationProcessingFilter extends
		AuthenticationProcessingFilter