Java Tutorial/Servlet/Thread

Servlet With Thread

   <source lang="java">

import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.*; public class MyServlet extends HttpServlet implements Runnable {

 long lastprime = 0;                    
 Date lastprimeModified = new Date();   
 Thread searcher;
 public void init() throws ServletException {
   searcher = new Thread(this);
   searcher.setPriority(Thread.MIN_PRIORITY);
   searcher.start();
 }
 public void run() {
   long candidate = 2;
   while (true) {     
     candidate += 2;                    
     try {
       searcher.sleep(5000);
     }
     catch (InterruptedException ignored) { }
     lastprime = 1;   
   }
 }
 public void doGet(HttpServletRequest req, HttpServletResponse res)
                              throws ServletException, IOException {
   res.setContentType("text/plain");
   PrintWriter out = res.getWriter();
   if (lastprime == 0) {
     out.println("Still searching for first prime...");
   }
   else {
     out.println("The last prime discovered was " + lastprime);
     out.println(" at " + lastprimeModified);
   }
 }
 public void destroy() {
   searcher.stop();
 }

}</source>