📄 welcomeservlet3.java

📁 java2高级教程大学教程的配套光盘源码
💻 JAVA
字号:
// Fig. 9.14: WelcomeServlet3.java
// Processing post requests containing data.
package com.deitel.advjhtp1.servlets;

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

public class WelcomeServlet3 extends HttpServlet {   

   // process "post" request from client
   protected void doPost( HttpServletRequest request, 
      HttpServletResponse response )
         throws ServletException, IOException 
   {
      String firstName = request.getParameter( "firstname" );
      
      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>Processing post requests with data</title>" );
      out.println( "</head>" );
      
      // body section of document
      out.println( "<body>" );
      out.println( "<h1>Hello " + firstName + ",<br />" );
      out.println( "Welcome to Servlets!</h1>" );
      out.println( "</body>" );
      
      // end XHTML document
      out.println( "</html>" );
      out.close();  // close stream to complete the page
   }   
}

/***************************************************************
 * (C) Copyright 2002 by Deitel & Associates, Inc. and         *
 * Prentice Hall. All Rights Reserved.                         *
 *                                                             *
 * DISCLAIMER: The authors and publisher of this book have     *
 * used their best efforts in preparing the book. These        *
 * efforts include the development, research, and testing of   *
 * the theories and programs to determine their effectiveness. *
 * The authors and publisher make no warranty of any kind,     *
 * expressed or implied, with regard to these programs or to   *
 * the documentation contained in these books. The authors     *
 * and publisher shall not be liable in any event for          *
 * incidental or consequential damages in connection with, or  *
 * arising out of, the furnishing, performance, or use of      *
 * these programs.                                             *
 ***************************************************************/
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -