Cannot forward after response has been committed

项目：蒙文词语检索

日期：2016-05-01

提示：Cannot forward after response has been committed

出处：request.getRequestDispatcher("admin.jsp").forward(request, response);

解决方法：

　　原代码：request.getRequestDispatcher("admin.jsp").forward(request, response);

　　修改成：删除此行或者注释掉。

分析：

　　是因为request.getRequestDispatcher("admin.jsp").forward(request, response);之前有一个response.sendRedirect("admin.jsp");而造成了冲突。

时间： 2024-08-09 14:47:49

Cannot forward after response has been committed的相关文章

java.lang.IllegalStateException: Cannot forward after response has been committed

jjava.lang.IllegalStateException: Cannot forward after response has been committed at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:312) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispat

解决Cannot forward after response has been committed

在是用request.getRequestDispatcher("目标地址URL").forward(request, response);时报错Cannot forward after response has been committed 字面意识是response已经提交过了不能再次提交,多次试了以后发现我的代码中有用了几次request.getRequestDispatcher("目标地址URL").forward(request, response);语句

Cannot forward after response has been committed 问题

1.问题的出现:当用户进入主页的时候,我需要判断是来着移动端还是pc端,于是我用了拦截器,拦截所有请求: 2.操作:1)mvc配置文件<mvc:interceptor>                                  <mvc:mapping path="/**" />                                            <bean class="com.thinkgem.jeesite.mod

Cannot create a session after the response has been committed

有时候在操作Session时,系统会抛出如下异常 java.lang.IllegalStateException: Cannot create a session after the response has been committed 之所以会出现此类问题是因为我们在Response输出响应后才创建Session的. (因为那时候服务器已经将数据发送到客户端了,即:就无法发送Session ID 了) 解决办法: 1.创建访问Session的语句[request.getSession()]提

javaweb中重定向和请求转发（response.sendRedirect()和request.getRequestDispatcher(rul).forward(request,response))）的区别

先来两张图,方便理解: 可以看出,重定向时,是服务器向游览器重新发送了一个response命令,让游览器再次向url2发送请求,以获取url2的资源 而请求转发时,类似于是服务器自己向自己发了一个跳转,然后将结果直接给游览器,这也是问什么游览器会不改变url地址.下面是具体总结他们的区别 一.response.sendRedirect(url)-服务器将新url发送给游览器,游览器再根据新url请求 Request.getRequestDispatcher(url).forward(reques

有时候在操作Session时，系统会抛出如下异常：java.lang.IllegalStateException: Cannot create a session after the response has been committed

有时候在操作Session时,系统会抛出如下异常 java.lang.IllegalStateException: Cannot create a session after the response has been committed 原因1: Session 的创建语句: HttpSession seesion = request.getSession(); 之前有Response的输出语句. 应该把HttpSession seesion = request.getSession(); 放

response.sendRedirect()与request.getRequestDispatcher(&quot;/index.jsp&quot;).forward(request, response)两者辨析

知识点轮廓 一 辨析response.sendRedirect()与request.getRequestDispatcher("/index.jsp").forward(request, response) 二 辨析请求转发与重定向异同问题[知识点总结] 第一部分: JSP中response.sendRedirect()与request.getRequestDispatcher().forward(request,response)这两个对象都可以使页面跳转,但是二者是有很大的区别的,

servlet dispatcher .forward(request, response); 进入其它servlet【原】

dispatcher .forward(request, response); 进入其它servlet 假如我们的web.xml配置如下 <servlet> <servlet-name>index</servlet-name> <servlet-class>king.server.IndexServlet</servlet-class> </servlet> <servlet-mapping> <servlet-na

Cannot create a session after the response has been committed解决方案

场景: @RequestMapping("/demo")     public void doTmallGujia(String callbackUrl, HttpServletResponse response){         try {             if(StringUtils.isNotBlank(callbackUrl)){                 callbackUrl = URLDecoder.decode(callbackUrl, "UT