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What's Going Wrong Here?

 
Somnath Mallick
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HI Everyone,

I ahve written a servlet code. But somehow I am running into problems! The basic flow is from a JSP --> Servlet --> JSP. But somehow my context path has gone wrong somewhere.

My form tag consists of this:

My web.xml:
[/code]

But somehow the context name which turns up is:


Could you please tell me where i am going wrong??
 
Vijitha Kumara
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How is your application deployed (directory structure) ? Are you able to access any other resource(s) in the application & how you access (i.e. URL) the resource ?
 
Nishan Patel
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Hi,

Can you please make some small change from

to



and check..
 
Nishan Patel
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Hi,

Use [code] tag when you question at java ranch with code...

please read this ............ Use Code Tag
 
Somnath Mallick
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^^ That didn't work!

I have attached my directory structure please check it out.

I did use code tag! Somehow got removed when i was editing my post!
DirectoryStructure.jpeg
[Thumbnail for DirectoryStructure.jpeg]
Directory Structure
 
Seetharaman Venkatasamy
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Somnath Mallick wrote:



and your url-pattern of servlet-mapping is



is this helps you ? got the problem ?

 
Nishan Patel
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Hi,

It's my mistake change


to



from the <url-pattern> your servlet selected .... so just change this and check for problem ...
 
Somnath Mallick
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I tried with :




Both of them didn't work!
 
Nishan Patel
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Hi,

After make changes to <form action="/iVVTPortal2/EnvDetailsServlet" method="post">

still show the message,


HTTP Status 404 - /iVVTPortal2/jsp/EnvDetailsServlet
type Status report

message /iVVTPortal2/jsp/EnvDetailsServlet

description The requested resource (/iVVTPortal2/jsp/EnvDetailsServlet) is not available.
Apache Tomcat/6.0.20


Can you please post your code from where you dispatch to your jsp page using JSP --> Servlet --> JSP

If you are using Servlet then your code looks like this into servlet,



 
Somnath Mallick
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Atleast that extra "jsp" has gone away from the context path. Now i get the error:


My JSP Page is:


This sends the request from JSP-->Servlet. This is in the jsp folder of the WebContent.
 
Nishan Patel
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Hi,

/jsp/yourJsp .jsp this path depending upon your application structure. It you put your jsp file at context level then it simply required /yourjsp.jsp...
I just give you simple example...
 
Ankit Garg
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Somnath please Use A Meaningful Subject Line when you start a topic.

Did you change the URL patter

to


in your deployment descriptor?? Also in your JSP you don't need to hard code the context path. You can use ${pageContext.request.contextPath} like

 
Somnath Mallick
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Thanks Ankit, your suggestion worked. Could you please explain me what this statement does: pageContext.request.contextPath? Also one of my friends told me to use:

Its also working! Could you please tell me how?
 
Nishan Patel
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pageContext is of type javax.servlet.jsp.PageContext.

pageContext class is an abstract class.

It do following things

  • provide convenience methods to get and set attributes in diff scopes.


  • provide convenience methods for transferring requests to other resources in the web application


  • store the references to implicit objects


  • when you write pageContext.request.contextPath will give you request object and get path to your project like localhost:8080/Test

    so
    form action="${pageContext.request.contextPath}/EnvDetailsServlet" method="post">


    this will make post on action localhost:8080/Test/EnvDetailsServlet

     
    Ankit Garg
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    Somnath, Nishan explained everything nicely. As far as using ../ is concerned, it worked fine in this case. But its not necessary that it will work in all the cases. Using ../ is a relative path. So if your jsp is accessed using the URL


    then ../EnvDetailsServlet will point to


    But if your jsp is accessed using the URL then ../EnvDetailsServlet will point to
    This might be problematic. So using the complete path from the context path is the best choice...
     
    Somnath Mallick
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    Thanks all for your replies! It was of great help!!
     
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