Spring 3.0无法转发来自HandlerInterceptorAdapter的请求 [英] Spring 3.0 unable to forward request from HandlerInterceptorAdapter

问题描述

如果会话无效，我想重定向到主页. 我的spring-servlet.xml是

I want to redirect to home page if session get invalid. My spring-servlet.xml is

<mvc:interceptors>
    <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
    <mvc:interceptor>
        <mvc:mapping path="/**" />
        <bean class="com.xxx.MyInterceptor" />
    </mvc:interceptor>
</mvc:interceptors>

拦截器:

public boolean preHandle(HttpServletRequest request,
            HttpServletResponse response, Object handler) throws Exception {
        if ((null == request.getSession(false))
                || (null == request.getSession(false).getAttribute(
                        "user"))) {
            System.out.println("user logged out...");
            RequestDispatcher rd = request.getRequestDispatcher("loginForm.htm");
            rd.forward(request, response);
            return false;
        }
        return super.preHandle(request, response, handler);
    }

但是它不起作用... 每当应用程序启动时，该消息都会多次打印，最后，它会导致堆栈溢出.

But its not working... Whenever application get started, the message get printed multiple times and at the end it gives stack overflow..

谢谢.

推荐答案

问题似乎出在您的映射路径中.由于其映射为/**，因此您的loginForm.htm也将被拦截.您可以使用两种解决方案来解决此问题.

It seems like the problem is in your mapping path. Since its mapped with /** your loginForm.htm is also getting intercepted. You have two solutions available to resolve this problem.

都可以定义<mvc:resources location="/resources/" mapping="/resources/**" />，以便不会截获* .htm请求.根据您的* .htm文件所在的路径替换位置和映射值.

Either define <mvc:resources location="/resources/" mapping="/resources/**" /> so that the *.htm requests will not be intercepted. Replace the location and mapping values as per your path where the *.htm files are.

另一种选择是使用/*.do之类的东西来更改拦截器中的映射.

And another option is to change your mapping in intercepter with something like /*.do or something else.

希望这对您有所帮助.干杯.

Hope this helps you. Cheers.

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