Hi,
Thank you for your quick reply. I resolved my problem. This is what I
did.
Just put getters and setters for "submitvalue" in ActionSupport class:
private String submitvalue;
public String getSubmitvalue() {
return submitvalue;
}
public void setSubmitvalue(String submitvalue) {
this.submitvalue = submitvalue;
}
NOTE : same name shoulb be used in jsp as well as in java class. i.e.,
"submitvalue"
Thanks once again Garli,
===============================================================================
Nils-Helge Garli wrote:
>
> Hi!
>
> Passing parameters to the action is handled automatically for you by
> the framework if you have the appropriate setters on the action. I
> suggest that you start with the tutorials from the documentation:
> http://struts.apache.org/2.1.6/docs/bootstrap.html
>
> Nils-H
>
> On Wed, Apr 8, 2009 at 12:19 PM, NR031 <[email protected]> wrote:
>>
>> Hi,
>>
>> I want to pass input parameter entered in the login page to
>> ActionSupport class. How to pass it.
>>
>> I used httpservletreq object to get value, but getting
>> NullPointerException
>> in the req.getParameter("submitvalue") line.
>>
>> struts.xml :
>>
>> <struts>
>> <package name="ActionServlet" namespace="/JSPPages"
>> extends="struts-default">
>> <action name="AJAX" class="com.cts.AJAX">
>> <result name="success">/JSPPages/AJAXSuccess.jsp</result>
>> <result name="failure">/JSPPages/AJAXFailure.jsp</result>
>> <result name="error">/JSPPages/AJAXError.jsp</result>
>> </action>
>> </package>
>> </struts>
>>
>> Login page :
>>
>> <html>
>> <head>
>> <meta http-equiv="Content-Type" content="text/html;
>> charset=UTF-8">
>> <title>This is my Struts2 and AJAX JSP</title>
>> </head>
>> <body>
>> <form action="JSPPages/AJAX.action">
>> <h2>This JSP page explains how Struts uses AJAX</h2><br>
>> Click the button to see the AJAX page...<br>
>> <input type="submit" value="Show AJAX Page"
>> name="submitvalue"/>
>> <input type="submit" value="Show Failure Page"
>> name="submitvalue"/>
>> </form>
>> </body>
>> </html>
>>
>> AJAX.java :
>>
>> package com.cts;
>>
>> import com.opensymphony.xwork2.ActionSupport;
>> import javax.servlet.http.HttpServletRequest;
>>
>> public class AJAX extends ActionSupport {
>>
>> HttpServletRequest req;
>>
>> �...@override
>> public String execute() throws Exception {
>> String submit_value = req.getParameter("submitvalue");
>> if (submit_value != null && submit_value.equalsIgnoreCase("Show
>> AJAX
>> Page")) {
>> return "success";
>> } else if (submit_value != null &&
>> submit_value.equalsIgnoreCase("Show Failure Page")) {
>> return "failure";
>> }
>> System.out.println("Error occurred :: submit_value = " +
>> submit_value);
>> return "error";
>> }
>> }
>>
>> Is it possible to use HttpServletRequest inside execute() method? What is
>> the problem in the above code? and what is the solution?
>>
>>
>> Thanks in advance,
>> --
>> View this message in context:
>> http://www.nabble.com/Pass-parameter-to-ActionSupport-class-tp22947415p22947415.html
>> Sent from the Struts - User mailing list archive at Nabble.com.
>>
>>
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>>
>
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