日期:2014-05-16 浏览次数:20658 次
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>使用Form.request</title> <meta name="author" content="Yeeku.H.Lee" /> <meta name="website" content="http://www.crazyit.org" /> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> </head> <body> <h3> 请输入用户名、密码登录 </h3> <form id="login" action="LoginServlet" method="post"> 用户名: <input name="user" type="text" /> <br /> 密码: <input name="pass" type="text" /> <br /> <input value="登录" type="button" onclick="login();"/> </form> <script src="js/prototype-1.6.0.3.js" type="text/javascript"></script> <script type="text/javascript"> //处理登录函数 function login() { //使用Form的request发送异步请求 $("login").request( { //指定回调函数 onComplete : function(request) { alert(request.responseText); } }); } </script> </body> </html>?Servlet的代码:
import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class LoginServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); String user = request.getParameter("user"); String pass = request.getParameter("pass"); PrintWriter out = response.getWriter(); if (user.equals("libinxuan") && pass.equals("123456")) { out.println("登录成功!!"); }else{ out.println("登录失败!!"); } } }?