|
| |
| 25. 28. 1. Servlet的线程 |
|
|
|
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();
}
}
|
|
|
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<servlet><servlet-name>MyServletName</servlet-name>
<servlet-class>MyServlet</servlet-class>
</servlet>
<servlet-mapping><servlet-name>MyServletName</servlet-name>
<url-pattern>/index.html</url-pattern>
</servlet-mapping>
</web-app>
|
|
 Download: ServletWithThread.zip( 89 k) |
| 25. 28. 线 | | 25. 28. 1. | Servlet的线程 | | |
|