May 2001
Intermediate to advanced
1088 pages
30h 13m
English
Content preview from Special Edition Using Java™ 2 Enterprise Edition
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A "Hello World" Servlet
A servlet contains a service method that handles incoming requests. A single servlet can handle many different requests. Listing 13.1 shows you the "Hello World" program in servlet form.
Code Listing 13.1. Source Code for HelloWorldServlet.java
package usingj2ee; import javax.servlet.*; import java.io.*; public class HelloWorldServlet extends GenericServlet { public void service(ServletRequest request, ServletResponse response) throws IOException { // Tell the Web server that the response is HTML response.setContentType("text/html"); // Get the PrintWriter for writing out the response PrintWriter out = response.getWriter(); // Write the HTML back to the browser out.println("<HTML>"); out.println("<BODY>"); out.println("<H1>Hello ... |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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