• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1630
  • Last Modified:

Access variable of parent jsp in included JSP

I have a JSP (A.jsp) which contains a variable declared like this :

<%! String returnToAction="abc"; %>

Now I include another JSP in this by writing

<jsp:include page="../common/B.jsp"  flush="true"/>

In B.jsp I want to access the variable declared in A.jsp,the code is as follows

<a href="/tradeability/edit_payment_info?fromPaymentReturnTo=<%= returnToAction %>"> Edit Payment Information</a>

This does not compile and says that unresolved symbol returnToAction.

Can anybody suggest wats wrong with that.
0
vishrutsumit
Asked:
vishrutsumit
1 Solution
 
rrzCommented:
<jsp:include page="../common/B.jsp"  flush="true"/>      
This dispalys the output  of B.jsp  
Can you use the  include directive ?
<%@  %>
0
 
rrzCommented:
You could try
<%@ include file="../common/B.jsp" %>
0
 
vishrutsumitAuthor Commented:
even the include directive doesn't work
0
Cloud Class® Course: Python 3 Fundamentals

This course will teach participants about installing and configuring Python, syntax, importing, statements, types, strings, booleans, files, lists, tuples, comprehensions, functions, and classes.

 
ramazanyichCommented:
why do you use exclamation mark in your first JSP ??
Just use <% String returnToAction="abc";%>
0
 
MogalManicCommented:
The problem is that the 'returnToAction' variable has a scope of the JSP page only.  When you leave the page in the @include directive, the variable does not exist.  The solution is to declare the bean in the REQUEST scope.  This can be done using the <jsp:useBean> tag.  Try the following:

<jsp:useBean id="returnToAction" class="java.lang.String" scope="request"/>
<%returnToAction="abc"%>
...
<jsp:include page="../common/B.jsp"  flush="true"/>


In the common/B.jsp:
<jsp:useBean id="returnToAction" class="java.lang.String" scope="request"/>
,,,
<a href="/tradeability/edit_payment_info?fromPaymentReturnTo=<%= returnToAction %>"> Edit Payment Information</a>

0
 
vishrutsumitAuthor Commented:
Logically this solutions should work.but it didn't,I had to use the param tags to pass the parameters.

Thanks all for your help.
0
 
kupra1Commented:
I have used the same thing. It will work with the include directive.  It will not work with the include action tag as it will be included at the runtime and hence will throw the exception. Here is the example:
-------- (A.jsp)
<%@include file="B.jsp"%>
<html>
<head>
      <link href="css/styles.css" rel="stylesheet" type="text/css">
</head>
<body bgcolor="#FFFFFF">
<%! String str = "Kupra"; %>
      <table border="1" width="95%" bgcolor = "#FFFFFF" cellpadding='0' cellspacing='0' bordercolor='#000000'>
            <tr>
                <td width="100%">
                               <table border="0" cellpadding="0" cellspacing="0" width="100%">
                                 <tr>
                                          <td align="center" bgcolor="#FF0000"><b><span class="Menu"></b><a
                                          href="servicerprofile.do" target='_parent'>My Account</a></td>
                                          <td bgcolor="#FF0000">&nbsp;</td>
                                          <td bgcolor="#FF0000">&nbsp;</td>
                                          <td align="center" bgcolor="#FF0000"><span class="Menu"><a
                                          href="linkcutofftime.do" target='_parent'>My Blogs</a></td>
                                          <td bgcolor="#FF0000">&nbsp;</td>
                                          <td bgcolor="#FF0000">&nbsp;</td>                              
                                    </tr>
                              </table>
                        </td>
            </tr>
      </table>
</body>
</html>


----- and (B.jsp)
<html locale="true">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<title>Exception</title>
      <link href="css/styles.css" rel="stylesheet" type="text/css">
</head>
<body bgcolor="#FFFFFF">
<table border="1" width="95%" bgcolor = "#FFFFFF" cellpadding='0' cellspacing='0' bordercolor='#000000'>
  <tr>
    <td width="100%">
            Hello How r u?<%=str%>
      </td>
  </tr>
</table>
</body>
</html>


Look at the fact that the variable str used in the B.jsp is declared in A.jsp only and is being successfully used.

Thanks


0
 
moduloCommented:
PAQed, with points refunded (125)

modulo
Community Support Moderator
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Cloud Class® Course: MCSA MCSE Windows Server 2012

This course teaches how to install and configure Windows Server 2012 R2.  It is the first step on your path to becoming a Microsoft Certified Solutions Expert (MCSE).

Tackle projects and never again get stuck behind a technical roadblock.
Join Now