java left logo
java middle logo
java right logo
 

Home arrow Java EE Tips
 
 
Main Menu
Home
Java Tutorials
Book Reviews
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Java Network
Java Forums
Java Blog




Most Visited Tips
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Book Reviews
Top Rated Tips
Java SE Tips
Java ME Tips
Java EE Tips
Other API Tips
Java Applications
Java Libraries
Java Games
Book Reviews


Statistics
Registered Users: 4085
Java SE Tips: 614
Java ME Tips: 202
Java EE Tips: 183
Other API Tips: 779
Java Applications: 298
Java Libraries: 209
Java Games: 16
Book Reviews:
 
 
 
How to write a thread-safe servlet E-mail
User Rating: / 83
PoorBest 

This J2EE tips demostrates an important aspect of web programming. Since requests to your webpage may and probably will occur concurrently which means multiple threads will be running your code simultaneously. This means you have to take care that one thread do not interfere with processing of other threads, therefore thread-safety is an important issue in web application. Developers should be aware of this issue and should make sure their code works in a thread-safe way.

import javax.servlet.*;
import javax.servlet.http.*;

public class IamThreadSafeServlet extends HttpServlet 
  implements SingleThreadModel {

  /*SingleThreadModel is an Marker Interface which we 
  have to implement to make a servlet thread safe*/
  
  private ServletConfig config;

  public void init (ServletConfig config)
      throws ServletException {
        this.config = config;
      }

  public void doGet (HttpServletRequest req,
      HttpServletResponse res throws ServletException, IOException  {
  
    res.setContentType"text/html" );
        PrintWriter out = res.getWriter();
    out.println"<html>" );
        out.println"<head>" );
        out.println"<title>This is A Thread safe Servlet</title>" );
        out.println"</head>" );
        out.println"<body>" );
        out.println"<h1>A Sample Servlet</h1>" );
        out.println"</body>" );
        out.println"</html>" );
        out.close();
    }
}


 Related Tips

 
< Prev   Next >

Page 1 of 0 ( 0 comments )

You can share your information about this topic using the form below!

Please do not post your questions with this form! Thanks.


Name (required)


E-Mail (required)

Your email will not be displayed on the site - only to our administrator
Homepage(optional)



Comment Enable HTML code : Yes No



 
       
         
     
 
 
 
   
 
 
java bottom left
java bottom middle
java bottom right
RSS 0.91 FeedRSS 1.0 FeedRSS 2.0 FeedATOM FeedOPML Feed

Home - About Us - Privacy Policy
Copyright 2005 - 2008 www.java-tips.org
Java is a trademark of Sun Microsystems, Inc.