Spring安全自定义过滤器多次调用

Question

我有六次自定义注销过滤器.我尝试访问应用程序时两次,当我输入用户名/密码并单击"登录"时再两次,然后当我点击"注销"时再次两次.

我究竟做错了什么？

组态:

<http auto-config="true" use-expressions="true">
    <intercept-url pattern="/admin/**" access="hasRole('ROLE_ADMIN_FUNCTIONS')" />      
    <intercept-url pattern="/**" access="hasRole('ROLE_USER')" />

    <form-login login-page="/login"
        authentication-success-handler-ref="customAuthenticationSuccessHandlerBean"
        authentication-failure-handler-ref="customAuthenticationFailureHandlerBean" />
    <logout invalidate-session="true" success-handler-ref="logoutHandlerBean" />
    <session-management session-fixation-protection="migrateSession">
        <concurrency-control max-sessions="1"
            expired-url="/login_sessionexpired" />
    </session-management>

    <custom-filter before="LOGOUT_FILTER" ref="customLogoutFilter" />
</http>

<beans:bean id="customLogoutFilter" class="com.hurontg.libms.security.CustomLogoutFilter" />

过滤器:

public class CustomLogoutFilter extends OncePerRequestFilter {
/**
 * 
 */
private XLogger logger = XLoggerFactory
        .getXLogger(CustomLogoutFilter.class.getName());

@Override
protected void doFilterInternal(HttpServletRequest req,
        HttpServletResponse res, FilterChain chain)
        throws ServletException, IOException {

    logger.error("========================================================================================");
    logger.error("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Custom Logout Filter $$$$$$$$$$$$$$$$$$$$$$$$$$$$$");
    logger.error("========================================================================================");

    chain.doFilter(req, res);
}

}

Spring版本:4.1.1 Spring安全性:3.2.5

Answer 1

如果您在使用Spring启动,任何GenericFilterBean(OncePerRequestFilter就是其中之一)的背景下,将被自动添加到过滤器链.这意味着您上面的配置将包括相同的过滤器两次.

最简单的解决方法是在上下文中定义FilterRegistrationBean并禁用它:

<beans:bean id="customLogoutFilterRegistration" class="org.springframework.boot.context.embedded.FilterRegistrationBean">
    <beans:property name="filter" ref="customLogoutFilter"/>
    <beans:property name="enabled" value="false"/>
</beans:bean>

Answer 2

它可能会被请求的其他 URL 调用。例如，如果您有任何加载到页面上的 css、javascript、图像，它将为每个图像调用。尝试添加一个显示当前请求信息的日志语句，以确定是否是这种情况。例如，

logger.error("URL = " + req.getRequestURL());