📄 greetingservlet.java
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/* * Copyright 2007 Sun Microsystems, Inc. * All rights reserved. You may not modify, use, * reproduce, or distribute this software except in * compliance with the terms of the License at: * http://developer.sun.com/berkeley_license.html */package servlets;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 GreetingServlet extends HttpServlet { public void doGet( HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); response.setBufferSize(8192); PrintWriter out = response.getWriter(); // then write the data of the response out.println("<html>" + "<head><title>Hello</title></head>"); // then write the data of the response out.println( "<body bgcolor=\"#ffffff\">" + "<img src=\"duke.waving.gif\" alt=\"Duke waving\">" + "<h2>Hello, my name is Duke. What's yours?</h2>" + "<form method=\"get\">" + "<input type=\"text\" name=\"username\" size=\"25\">" + "<p></p>" + "<input type=\"submit\" value=\"Submit\">" + "<input type=\"reset\" value=\"Reset\">" + "</form>"); String username = request.getParameter("username"); if ((username != null) && (username.length() > 0)) { RequestDispatcher dispatcher = getServletContext() .getRequestDispatcher( "/response"); if (dispatcher != null) { dispatcher.include(request, response); } } out.println("</body></html>"); out.close(); } public String getServletInfo() { return "The Hello servlet says hello."; }}⌨️ 快捷键说明
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