welcomeservlet.java

来自「java web services how to program」· Java 代码 · 共 47 行

JAVA
47 行
字号 
// Fig. A.5: WelcomeServlet.java
// A simple servlet to process get requests.
package com.deitel.jws.servlets;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class WelcomeServlet extends HttpServlet {   

   // process "get" requests from clients
   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
   }   
}

welcomeservlet.java - 源码说明

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