1.测试html页面WelcomeServlet.html
<?xml version = "1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <!-- Fig. 9.6: WelcomeServlet.html --> <html xmlns = "http://www.w3.org/1999/xhtml"> <head> <title>Handling an HTTP Get Request</title> </head> <body> <form action = "/advjhtp1/welcome1" method = "get"> <p><label>Click the button to invoke the servlet <input type = "submit" value = "Get HTML Document" /> </label></p> </form> </body> </html><!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> <web-app> <!-- General description of your Web application --> <display-name> Advanced Java How to Program JSP and Servlet Chapter Examples </display-name> <description> This is the Web application in which we demonstrate our JSP and Servlet examples. </description> <!-- Servlet definitions --> <servlet> <servlet-name>welcome1</servlet-name> <description> A simple servlet that handles an HTTP get request. </description> <servlet-class> com.deitel.advjhtp1.servlets.WelcomeServlet </servlet-class> </servlet> <!-- Servlet mappings --> <servlet-mapping> <servlet-name>welcome1</servlet-name> <url-pattern>/welcome1</url-pattern> </servlet-mapping> </web-app> package com.deitel.advjhtp1.servlets; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class WelcomeServlet extends HttpServlet
{ 
protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException 
{
response.setContentType( "text/html" ); PrintWriter out = response.getWriter(); // send XHTML page to client // start XHTML document out.println( "<?xml version = \"1.0\"?>" ); out.println( "<!DOCTYPE html PUBLIC \"-//W3C//DTD " + "XHTML 1.0 Strict//EN\" \"http://www.w3.org" + "/TR/xhtml1/DTD/xhtml1-strict.dtd\">" ); out.println( "<html xmlns = \"http://www.w3.org/1999/xhtml\">" ); // head section of document out.println( "<head>" ); out.println( "<title>A Simple Servlet Example</title>" ); out.println( "</head>" ); // body section of document out.println( "<body>" ); out.println( "<h1>Welcome to Servlets!</h1>" ); out.println( "</body>" ); // end XHTML document out.println( "</html>" ); out.close(); // close stream to complete the page
} 
}webapps\advjhtp1
\ servlets
WelcomeServlet.html
\WEB-INF
web.xml
\ classes
com\deitel\advjhtp1\servlets\WelcomeServlet.class
5.http://localhost:8080/advjhtp1/servlets/WelcomeServlet.html 访问;
