JSP: send request and get response XML

Question

Hi guys.

I want to setup a JSP page to:

• to call DDR server with address: http://ddr.mobileok.kr/profile/DeviceProfile.do with parameter is: ?mn=SCH-W420 (so i will request: http://ddr.mobileok.kr/profile/DeviceProfile.do?mn=SCH-W420 )
• after get the return result is XML format

Note: I tried get "XML return result" from DDR server with javascript using ajax like the following code (like AJAX code). It done well :

 /**Send request*/
  http_request.onreadystatechange = alertContents;
  http_request.open('GET', url + parameters, true);
  http_request.send(null);
  .....
 /**get response from server*/
  return http_request.responseText;

But now I do not want to use Javascript, only want do by JSP.

How can I do with JSP?

Thank you!!!

Answer 1

JSP is not really appropriate for this; servlet would probably be better. If you must do it in JSP you'll have to do it in the java snippet:

<%

 URL url = new URL("http://ddr.mobileok.kr/profile/DeviceProfile.do?mn=SCH-W420");
 HttpURLConnection connection = (HttpURLConnection) url.openConnection();
 connection.setRequestMethod("GET");
 connection.connect();
 InputStream stream = connection.getInputStream();
 // read input stream directly or via DOM or via SAX or whatever
%>

Answer 2

Depending on what you want to do with the output you could just use a jsp include tag. These can be used to include any kind of page...

<jsp:include page="http://ddr.mobileok.kr/profile/DeviceProfile.do"&gt;    
   <jsp:param name="mn" value="SCH-W420" /> 
</jsp:include>

But I'll second the thought that this is the wrong way to do it.

Instead take the java code given in the other answer use it in a servlet (or any type of controller) parse the xml and then return it to the view layer.

If you want to convert this xml to json try the strangely named badgerfish -

http://sujitpal.blogspot.com/2007/10/converting-xml-to-badgerfish-json.html