Re: Where to start with a webapp that is not really a webapp

"John B. Matthews" <nospam@nospam.invalid>
Fri, 26 Jun 2009 10:16:30 -0400
In article
 Andrew <> wrote:

I have an app that is currently a Junit test but I want to convert it
to a program that will run 24x7, i.e. a server.

If your test is simple and you just want to see the result:

import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

/** @author John B. Matthews */

public class Test extends HttpServlet {

    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException {
        PrintWriter out = response.getWriter();
        String title = "Exec";
        out.println("<title>" + title + "</title>");
        out.println("<body bgcolor=\"white\">");
        out.println("<h2>" + title + ": " + new Date() + "</h2>");
        doExec("java org.junit.runner.JUnitCore yourTest", out);

    private void doExec(String cmd, PrintWriter out) {
        String s;
        try {
            Process p = Runtime.getRuntime().exec(cmd);
            // read from the process's stdout
            BufferedReader stdout = new BufferedReader (
                new InputStreamReader(p.getInputStream()));
            while ((s = stdout.readLine()) != null) {
                out.println(s + "<br>");
            // read from the process's stderr
            BufferedReader stderr = new BufferedReader (
                new InputStreamReader(p.getErrorStream()));
            while ((s = stderr.readLine()) != null) {
                out.println(s + "<br>");
            out.println("Exit value: " + p.waitFor() + "<br>");
        catch (Exception e) {

Not tested; assumes correct classpath; meta refresh optional.


John B. Matthews
trashgod at gmail dot com

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