Hi all friends, I couldn't connect my servlet from my swing interface.I want to send two parameters(userid and password) from swing interface(it is a login dialog box) to my servlet.Iam using Tomcat server4.0 and I also put entry of my servlet in web.xml file.Can any one plz guide me how I can slove this problem. Below r my codes:- Swing Interface(Iam pasting only action event of my submit button):- ================ public URL u; public URLConnection uc; submit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String userid1; String password1; String Content; String url="http://127.0.0.1:8080/examples/servlet/loginServlet"; userid1 = userid.getText(); password1 = password.getText(); System.out.println(userid1); System.out.println(password1); Content= userid1 + password1; try{ u = new URL(url+"?name=" +userid1 + "&path=" + password1); uc =u.openConnection(); uc.setDoOutput(true); uc.setDoInput(true); uc.setUseCaches(false); printout = new DataOutputStream(uc.getOutputStream ()); printout.writeBytes(Content); printout.flush(); printout.close(); }catch(Exception ex){System.out.println("Error from actionPerformed :" + ex.getMessage());} } }); Servlet file:- ============= import java.io.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class loginServlet extends HttpServlet {