1、springmvc过滤器request.getRequestDispatcher跳转了，日志也提示view(jsp)访问了，浏览器却没动静。

if(!isLogin){
            httpServletRequest.getRequestDispatcher("/toLogin").forward(httpServletRequest, httpServletResponse);
        }

17:57:55.062 [http-nio-8080-exec-3] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'indexLogin'
17:57:55.062 [http-nio-8080-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Last-Modified value for [/toLogin] is: -1
17:57:55.063 [http-nio-8080-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Rendering view [org.springframework.web.servlet.view.JstlView: name 'login'; URL [/WEB-INF/view/login.jsp]] in DispatcherServlet with name 'springMVC'
17:57:55.063 [http-nio-8080-exec-3] DEBUG org.springframework.web.servlet.view.JstlView - Forwarding to resource [/WEB-INF/view/login.jsp] in InternalResourceView 'login'
17:57:55.064 [http-nio-8080-exec-3] DEBUG org.springframework.web.servlet.DispatcherServlet - Successfully completed request

页面有个功能请求通过jquery ajax去请求controller，过滤器发现没登录过滤器request.getRequestDispatcher发起登录请求跳到登录页面，日志记录已经forward了（看图2），但浏览器没跳。

2、而且单独请求/toLogin没问题，直接出来登录页面