Example Servlet

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

/**

* HelloWorldServlet sends back a simple,

static HTML page.

public class HelloWorldServlet extends HttpServlet

{

public void doGet

(

HttpServletRequest req, // This provides //information

//sent by the browser

HttpServletResponse res // This is used to send //information

// back to the browser

) throws ServletException, IOException

// General exception

// that should be thrown if there

// is a unrecoverable error in the Servlet

{

// Set the MIME type for the information being sent to the browser.

// In this case, we are going to send back HTML

res.setContentType( "text/html" );

// Get a reference to the output stream.

// Anything written to this stream is sent directly

//to the browser

// (The browser sees this as its input).

ServletOutputStream out = res.getOutputStream();

// The following println statements create an //HTML page.

// Notice that the <html></html>, <head></head>, //and <body></body>

// tags are all properly formed HTML syntax.

out.println( "<html>" );

out.println( "<head><title>Hello World</title></head>" );

out.println( "<body>" );

out.println( "<h1>Hello World</h1>" );

out.println( "<p>Congratulations, your first servlet is working!</p>" );

out.println( "</body>" );

out.println( "</html>" );

out.close();

}