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Questions tagged [requestdispatcher]

The request dispatcher is used for receiving requests from the client and sending them to any resource (such as a servlet, HTML file, or JSP file) on the server.

The request dispatcher is used for receiving requests from the client and sending them to any resource (such as a servlet, HTML file, or JSP file) on the server. The most common approach is forward or include resource to the client.

The servlet container creates the RequestDispatcher object, which is used as a wrapper around a server resource located at a particular path or given by a particular name.

See RequestDispatcher API docs for details.

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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has been committed

This method throws java.lang.IllegalStateException: Cannot forward after response has been committed and I am unable to spot the problem. Any help? int noOfRows = Integer.parseInt(request.getParameter("noOfRows")); String chkboxVal = ""; …
sansknwoledge
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How can I hide the JSP file in WEB-INF folder?

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…
Koray Tugay
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RequestDispatcher - when is a response committed?

I'm writing some basic code as I learn about the RequestDispatcher. I understand that when rd.forward() is called, control (and response handling) is forwarded to the resource named in the path - in this case another servlet. But why doesn't this…
Jeff Levine
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Request Attributes not available in jsp page when using sendRedirect from a servlet

I am new to jsp and servlet. My scenario is as follows I have a jsp page which have a form in it. with two fields. The code snipet of the jsp page is as follows. MyFirstJSP.jsp file

This is my first jsp and servlet…

Param-Ganak
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How to forward the requestdispatcher to a remote URL

Am having a HTML page http://www.mywebapp.com/sample.html which is used from remote server. am passing the HTML URL as hidden form like this in the same HTML form,
sathya
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Passing data from servlet to another servlet using RequestDispatcher

I am trying to pass data from one servlet to another using the RequestDispatcher. This is my code for the Dispatcher. String address; address = "/Java Resources/src/coreservlets/MapOut.java"; RequestDispatcher dispatcher = …
stacktraceyo
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RequestDispatcher from servletcontext versus request

What is different between these two code lines and when should we use each of them? 1. RequestDispatcher view = request.getRequestDispatcher(“result.jsp”); 2. RequestDispatcher view = getServletContext().getRequestDispatcher(“/result.jsp”);
mohsen.nour
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org.springframework.web.servlet.PageNotFound noHandlerFound; WARNING: No mapping found for HTTP request with URI in DispatcherServlet

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…
Sumit Surana
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Requestdispatcher in servlets: forward method not preserving request attribute

This is my prog1: public class DispatcherSample extends HttpServlet { public void service(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException { PrintWriter out=response.getWriter(); …
sanjay
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Request Dispatcher does not load the stylesheet file in jsp

I have a HTML page which takes a username and password from the user and sent it to servlet. If both of them are correct, then servlet dispatches to JSP page. RequestDispatcher rD = request.getRequestDispatcher("dynamic/faculty/updatefaculty.jsp"); …
mohsen.nour
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Can we somehow change the url in addressbar after dispatching request from servlet to jsp

I am having a weird problem here, and I am really stuck, need to get this work badly. so i have a page say index.jsp with a link say "a href=servlet?id=10". when I click on this link it will go to doGet() on my servlet and here is the code in my…
Adil Shaikh
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What are "programmatic server-side includes"?

From the Java EE tutorial: If the resource is static, the include method enables programmatic server-side includes. If the resource is a web component, the effect of the method is to send the request to the included web component, execute the web…
User1291
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Cannot get a RequestDispatcher

I've read lots of similar questions and tryed all suggested methods for fixing the problem, however it's unsuccessfully. Now I really don't have any ideas what to do with this (localhost:8080/testWebApp/home): HTTP Status 500 - ... …
user3856196
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Changing HTTP method in RequestDispatcher

How do I change HTTP method in javax,servlet.RequestDispatcher? I have some old service APIs that support GET and POST, The new version supports DELETE method for removing a record which used to happen through POST earlier. We are decommissioning…
Puru--
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Does javax.servlet.error.exception attribute always cast to java.lang.Exception type?

The attribute javax.servlet.error.exception in request with dispatcher type is ERROR can always cast to java.lang.Exception type? I take a look at the javadoc, but it doesn't mention the type must be java.lang.Exception OR java.lang.Throwable. I am…
LHA
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