Prentice Hall and Sun Microsystems. Personal use only; do not redistribute.
2.2 A Simple Servlet Generating Plain Text
23
2.2 A Simple Servlet Generating 
Plain Text
Listing 2.2 shows a simple servlet that just generates plain text, with the out 
put shown in Figure 2 1. Section 2.3 (A Servlet That Generates HTML)
shows the more usual case where HTML is generated. However, before mov 
ing on, it is worth spending some time going through the process of installing,
compiling, and running this simple servlet. You'll find this a bit tedious the
first time you try it. Be patient; since the process is the same each time, you'll
quickly get used to it, especially if you partially automate the process by
means of a script file such as that presented in the following section. 
Listing 2.2 HelloWorld.java 
import java.io.*; 
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
  public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
      throws ServletException, IOException {
    PrintWriter out = response.getWriter();
    out.println("Hello World");
  }
}
Figure 2 1
Result of Listing 2.2 (HelloWorld.java).
Second edition of this book: www.coreservlets.com; Sequel: www.moreservlets.com.
Servlet and JSP training courses by book's author: courses.coreservlets.com.






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