How to retrive xmlhttprequest in Servlet and how to return the value to xml

just call your servlet directly via the JavaScript URL, like:

URL = "/servlets/com.myProject.myServlet?field1=" + document.getElementById('field1').value;

then in your servlet, simple setup would be like:

public void doGet(HttpServletRequest req, HttpServletResponse res) {

try{

PrintWriter out = res.getWriter();

String field1 = req.getParameter("field1");

String result = field1;

// ***** do something with field1

out.print( result );

// or if you are sending xml response then hvae something like this

response.setContentType("text/xml");

response.setHeader("Cache-Control", "no-cache");

out.println("<?xml version="1.0" encoding="UTF-8" standalone="yes"?>");

out.println("<response><item>"+result"</item></response>");

}catch(Exception e){

logger.debug( e.getMessage() );

logger.debug( e.getStackTrace().toString() );

}finally{;}

}

then, back in your JavaScript (code/file):

function updatePage() {

if (request.readyState == 4)

if (request.status == 200)

{

alert("Server is done!");

var message = request.responseXML.documentElement;

var textvalue = message.getElementsByTagName('item')[0].firstChild.data;

document.getElementById("server").value= textvalue;

}

}

swapperpid0a at 2007-7-14 17:49:09 >