responseservlet.java

来自「卡内基梅隆大学软件工程课件,很全面」· Java 代码 · 共 41 行

/*
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */


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

/**
 * This is a simple example of an HTTP Servlet.  It responds to the GET
 * method of the HTTP protocol.
 */
public class ResponseServlet extends HttpServlet { 

    public void doGet (HttpServletRequest request,
                       HttpServletResponse response)
   throws ServletException, IOException
    {
        PrintWriter out = response.getWriter();

   // then write the data of the response
    String username = request.getParameter("username");
    if ( username != null && username.length() > 0 ) 
        out.println("<h2>Hello, " + username + "!</h2>");

    }

    public String getServletInfo() {
        return "The Response servlet says hello.";

    }
 }