Out.println not works after connecting database

Hi,
I am not able to view the output after connecting the database. If i change the output bfr connect it is working fine.
any idea?
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.net.*;
import java.sql.*;
import java.util.*;
public class Login3 extends HttpServlet
public void doGet(HttpServletRequest req ,HttpServletResponse res)
throws IOException,ServletException
Connection conn = null;
Statement st;
ResultSet rs1,rs2;
Statement select = null;
ResultSet result = null;
try{
ResourceBundle config = ResourceBundle.getBundle("config");
String dbserver = config.getString("dbserver");
res.setContentType("text/html");
PrintWriter out = res.getWriter();
Class.forName("org.gjt.mm.mysql.Driver");
conn = DriverManager.getConnection("jdbc:mysql://192.168.1.20/test?user=saravanan&password=123456");
out.println("<html><body>hai</body></html>");
}catch(Exception e){e.printStackTrace();}
}

hi,
Thanks for ur reply. I didn't get any exception or error in the log files
Regards,
Saravanan

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