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how to assign javascript variable value to a jsp variable

Greenhorn

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posted 14 years ago

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hi,

how to assign javascript variable value to a jsp variable?

i 've following code

<%-- 
    Document   : Form_jsp
    Created on : May 19, 2012, 12:28:32 PM
    Author     : Srihari
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ page language="java" %>
<%@ page import="newpackage.NewClass"%>
<!DOCTYPE html>
<HTML>
    <HEAD>
        <TITLE>Using Buttons</TITLE>
    </HEAD>

<SCRIPT LANGUAGE="JavaScript">
                <!--
                function button1()
                {     
                    var v="XXXXXXXX";
                <% String name = "YYYYYYYYY";%>//[b]here i need to pass var v to String name[/b]
                <% NewClass demo = new NewClass();%>
                        var Data=<%= "\"" + demo.GetData(name) + "\""%>;
                        alert(Data);                                            
                    }    
                                    
            </SCRIPT>
    </BODY>
</HTML>

in this i am getting alert as

"some data from the class NewClass +YYYYYYYYY"

instead of "some data from the class NewClass +XXXXXXXX"

please help me in this scenario.

amir taghvayi

Ranch Hand

Posts: 54

posted 14 years ago

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hi

Note: javascript is client side and jsp iس server side .
you زan not assign javascript variable value to a jsp variable .

Possible ways :

send v as a parameter to jsp then get with ${param['v']}

directly set name = "XXXXXXXX"

Bear Bibeault

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Posts: 67762

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posted 14 years ago

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Impossible, unless you can invent a time machine. The JSP code runs long before the page gets sent to the browser where the JavaScript can be evaluated.

Please read this article to understand what JSP is.

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