requestdispatcher

RequestDispatcher.forward to a media file?

由 最后都变了- 提交于 2019-12-10 21:17:56
问题 I recently had an issue to resolve and found a solution, but that solution could potentially be greatly simplified if I could somehow use RequestDispatcher.forward to forward a request to a media URL. From the docs, it says that it only supports servlet, JSP file, or HTML file. I tried with a media URL anyway and it did not complain, however it's not returning the correct headers (e.g. mime type) and perhaps there or other faulty things but anyway it did not worked as expected. Is there a way

when is servlet response committed or flushed?

由 99封情书 提交于 2019-12-06 10:05:15
问题 According to javadoc: in- request.getRequestDispatcher("/Test").forward(request,response); forward should be called before the response has been committed to the client (before response body output has been flushed).Uncommitted output in the response buffer is automatically cleared before the forward. I am getting confused when this response is committed or been flushed? is this writing in println of printwriter . 回答1: Calling flush() on the PrintWriter commits the response. forward method

org.springframework.web.servlet.PageNotFound noHandlerFound; WARNING: No mapping found for HTTP request with URI in DispatcherServlet

由 老子叫甜甜 提交于 2019-12-06 03:45:30
问题 I went through many forums and blogs to get the answer but couldn't get any useful tip or advice. So please if anybody can help in below issue it would be a great help. I am getting the below Warning and error when tried to connect to http://localhost:8080/SpringApp/hello : INFO: Server startup in 6935 ms Jul 19, 2014 11:15:42 AM org.springframework.web.servlet.PageNotFound noHandlerFound WARNING: No mapping found for HTTP request with URI [/SpringApp/] in DispatcherServlet with name

RequestDispatcher.forward() to resource under “/WEB-INF” doesn't work in WebSphere

由 限于喜欢 提交于 2019-12-05 02:28:22
问题 In one of my servlets, I invoke RequestDispatcher.forward() call to a static resource somewhere under WEB-INF folder: request .getRequestDispatcher( "/WEB-INF/some/path/image.gif" ) .forward( request, response ); Navigating to this servlet works fine under Tomcat, Jetty et al., but does not work in WebSphere 7. The error I get (both in the browser and in the server logs) is Error 403: SRVE0190E: File not found: /WEB-INF/some/path/image.gif Initially I assumed that WebSphere may need some

when is servlet response committed or flushed?

由 ≯℡__Kan透↙ 提交于 2019-12-04 14:11:36
According to javadoc: in- request.getRequestDispatcher("/Test").forward(request,response); forward should be called before the response has been committed to the client (before response body output has been flushed).Uncommitted output in the response buffer is automatically cleared before the forward. I am getting confused when this response is committed or been flushed? is this writing in println of printwriter . Calling flush() on the PrintWriter commits the response. forward method allows one servlet to do preliminary processing of a request and another resource to generate the response.

RequestDispatcher ending in infinite loop

由 柔情痞子 提交于 2019-12-02 17:21:44
问题 I have two WAR applications and the mode of communication between them is via servlets. My application (WAR A) opens a child window with the URL of a servlet in another WAR (lets say WAR B). The servlet (in WAR B) processes the data and should send the processed data back to original application's servlet (i.e WAR A's servlet). But this process ends in an infinite loop and also the URL parameters sent from WAR-A are null. Here is the code snippet : The below script opens a child window with

RequestDispatcher ending in infinite loop

由 夙愿已清 提交于 2019-12-02 08:36:57
I have two WAR applications and the mode of communication between them is via servlets. My application (WAR A) opens a child window with the URL of a servlet in another WAR (lets say WAR B). The servlet (in WAR B) processes the data and should send the processed data back to original application's servlet (i.e WAR A's servlet). But this process ends in an infinite loop and also the URL parameters sent from WAR-A are null. Here is the code snippet : The below script opens a child window with the URL of servlet in WAR-B also passing some URL parameters. function invokePlugin(invokeURL,

After submitting HTML form, servlet action appears in URL instead of JSP file

由 浪尽此生 提交于 2019-12-02 05:44:52
问题 I created a simple login page. If the user entered right username and password the page ill be redirected to the success page otherwise it will be redirected to the index page. In login page i given the form submit action to the servlet. Once the servlet validates the input it will dispatched to the respective jsp page. My problem was the action name still in the url after the dispatch also. Is it right? package com.123.www; import java.io.IOException; import javax.servlet.RequestDispatcher;

How specify path to .JSP file for request.getRequestDispatcher()?

由 独自空忆成欢 提交于 2019-12-01 23:51:27
I am confused about the meaning of request.getContextPath(). My file layout is as follows: MyServer/WebContent: /Resources/MyImage.jpg /Resources/Scripts/MyScript.js /WEB-INF/JSP/MyPage.jsp In the MyPage.jsp I am able to locate the JavaScript and image by <script src="${pageContext.request.contextPath}/Resources/Scripts/MyScript.js"> and <img src="${pageContext.request.contextPath}/Resources/MyImage.img"> From this I concluded that ${pageContext.request.contextPath} dynamically resolved to the "WebContent" folder and it is my understanding that this will resolve to this folder no matter what

How can I hide the JSP file in WEB-INF folder? [duplicate]

由 十年热恋 提交于 2019-12-01 02:54:23
问题 This question already has answers here : Include a private JSP from a Servlet (2 answers) Closed 3 years ago . In a simple Java web application, for example imagine you have a servlet TestServlet.java. In deployment description ( web.xml ) you can for example map the request coming to say /testpage to TestServlet so that when /testapplication/testpage is requested TestServlet handles the request. And you can for example write "Hello World" and send the response. In directory structure ( the
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