How to compare javascript variable with Jsp variable?

Question

I want to compare a javascript variable with a jsp variable. How can I do this?

 function verify_details()
   {
    var resourceId=document.getElementById("res").value;'
    <%! String rId;%>
    <%
    for(int i=0;i<l.size();i++)
    {
      rId=l.get(i).toString();
       System.out.println("Elements Are:"+rid);
    %>
       if(resourceId==rId)
        alert("Alloted");
       else
           alert("Not Alloted");  

   <%}%>

   }

possible duplicate of [How to access list from JSP in Javascript?](http://stackoverflow.com/questions/6567762/how-to-access-list-from-jsp-in-javascript) — Harry Joy, Jul 04 '11 at 06:48

score 1 · Answer 1 · edited May 23 '17 at 12:27

1

You shouldn't be doing this in the first place. See this.

If you really want to, make a new JSP with this code in it, pass the variable you want to compare as a parameter (call that page with AJAX) and get the result.

But, that's overly complicated and this situation should really never occur in code that is well structured.

edited May 23 '17 at 12:27

Community

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answered Jul 04 '11 at 06:48

Dhaivat Pandya

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score 0 · Answer 2 · edited Aug 05 '12 at 18:07

0

Use some control like 'hidden' or any other. Its value will be accessible in both javascript and jsp.

edited Aug 05 '12 at 18:07

H.Muster

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answered Jul 04 '11 at 06:48

MLS

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How to compare javascript variable with Jsp variable?

2 Answers2