J2me & servlet - exception in midlet output

Question

I am invoking servlet in my MIDlet application. when i invoke on my local netword with local ip of web server it works properly on browser and midlet. but when i invoke with internet with global ip of web server it works properly only on browser not on MIDlet. it gives msg - "Uncaught exception java/lang/IllegalArgumentException"
i am not understanding the problem and helpless...
please help me to solve this problem....
my code is here... (for invoking servlet on midlet - i am displaying returning value of this method on form)
methos in medlet
public String invokeServlet(String data) throws IOException
//String url="http://127.0.0.1:8081/dictionary/searchword_mobile?word=" + data; //working properly
//String url="http://192.168.1.54:8081/dictionary/searchword_mobile?word=" + data; //working properly
//String url="http://192.168.0.115:8080/dictionary/searchword_mobile?word=" + data; //working properly
String url="http://202.144.52.226:8080/dictionary/searchword_mobile?word=" + data; //not working gives exception
HttpConnection c = null;
InputStream is = null;
StringBuffer b = new StringBuffer();
try
c = (HttpConnection)Connector.open(url);
c.setRequestMethod(HttpConnection.GET);
c.setRequestProperty("User-Agent","Profile/MIDP-1.0 Configuration/CLDC-1.0");
c.setRequestProperty("Content-Language", "en-CA");
is = c.openDataInputStream();
int ch;
while ((ch = is.read()) != -1)
b.append((char) ch);
catch (Exception e)
wordbox.setString("Exception " + e);
finally
if(is!= null)
is.close();
if(c != null)
c.close();
return b.toString();
=======================
servlet code
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.dictionary.wordpack.WordDAO;
public class SearchWordServlet_Mobile extends HttpServlet
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException
          String word=request.getParameter("word");
          String returndata=new WordDAO().searchword_mobile(word);
          //System.out.println("word for searching : " + word);
          response.setHeader("Content-Type", "application/octet-stream");
          response.setHeader("Cache-Control","no-store");
          response.setHeader("Cache-Control", "no-cache");
          response.setHeader("Pragma","no-cache");
          response.setHeader("Cache-Control", "no-transform");
          response.setHeader("Connection", "Keep-Alive");
          response.setHeader("Proxy-Connection", "Keep-Alive");
          response.setContentType("text/plain");
          response.setContentLength(returndata.length());          
          ServletOutputStream out=response.getOutputStream();
          out.print(returndata);                         
          out.close();          
=====================
plseae suggest me solution for this problem.
thanks in advance...

Answer 1

Are you able to receive any data in simulator I mean to say are you getting the same exception in simulator too?
Use POST method in place of GET, and check.
What are you passing in the variable data? May be the data size is exceeding the limit.
If you resolved then don't forget to reward!!!
Shan!!!