How to pass a value of a variable from a java class to the jsp page

Question

I have 2 files named Admin.java and index.jsp.

In Admin.java through a function I retrieve the value of the varible named

Answer 1

Seems like you're doing AJAX, so I'd say your response would need to be encoded in an AJAX-compatible way (JSON, XML, ...).

If you do AJAX-encoding, your function might look like this:

function(response)
{
 var toplevel = response.;
} 

Edit:

We're using JSON Simple for JSON encoding.

Our Java backend then looks like this (simplified version without error checking):

public String execute()
{
  JSONObject jsonResult = new JSONObject();

  jsonResult.put( "result", "ok");

  return jsonResult.toJSONString();
}

And in the Javascript function:

function(response)
{
 var result = response.result; //now yields "ok"
}