Problem when ping the mail server.

Question

i want to ensure whether the mail server is started in the particular machine.thru the java code how can i ping.

Answer 1

Sexy liddle Servlet for yer;-
import java.io.*;
import javax.servlet.http.*;
public class TestPingServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) {
   try {
      response.setContentType("text/plain");
      String target = request.getParameter("ip");
      PrintWriter out = response.getWriter();
      Process pingProc = Runtime.getRuntime().exec(new String[] { "ping", target });
      BufferedReader procOutput = new BufferedReader(new InputStreamReader(pingProc.getInputStream()));
      String line;
         while((line = procOutput.readLine()) != null) {
            out.println(line);
         pingProc.waitFor();
     out.close();
   catch(Exception e) {
         e.printStackTrace();
}