June 2004
Beginner to intermediate
364 pages
7h 38m
English
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11.11. Creating WAR Files
Problem
You want to create a deployment file for a web application.
Solution
Compress the web application into a .war file,
which is the kind of file you use to deploy web applications. You can
create .war files from Eclipse using Ant.
Discussion
To get a look at how to deploy web apps using Eclipse,
we’ll deploy the sample servlet in Example 11-8 for a project named
DeployApp, which can be found at this
book’s O’Reilly site. After
compressing an application into a .war file, you
can drop the .war file into the Tomcat
webapps directory. Tomcat
then expands and installs it when you restart Tomcat, which deploys
the application.
Creating an application to deploy
To make it easier to create the .war file, give
this project its own folder in the
webapps directory (i.e.,
webapps\DeployApp). Don’t
forget to add a WEB-INF directory with the
subdirectories classes and
lib, and make the classes
folder the output folder for the project. Then enter the code in
Example 11-8 to
DeployClass.java.
Example 11-8. A servlet to deploy
package org.cookbook.ch11; import javax.servlet.http.HttpServlet; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class DeployClass extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/html"); PrintWriter out = response.getWriter( ); out.println("<HTML>"); out.println("<HEAD>"); out.println("<TITLE>"); out.println("Deploying ...