日期:2014-05-16 浏览次数:20662 次
下面是一个Jsp页面的代码:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <script type="text/javascript" src="/jQuery/jQuery/jquery-1.2.6.pack.js"></script> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <script type="text/javascript"> /*** jQuery(function(){ $("#user_name").blur(function(){ var name= $.trim($("#user_name").val()); $.ajax({ url:"/jQuery/myServlet", data:{username:name}, cache:false, success:function(data){ if(data=="true"){ alert("姓名可以使用!"); }else{ alert("姓名不能使用!"); } } }) }) }); ***/ //提交; function checkSubmit(){ var bol = true; var username = $.trim($("#user_name").val()); var password = $.trim($("#password").val()); if(username==null || username==""){ $("#userDivId").show(); $("#userDivId").html("用户名不能为空!"); $("#msgDIVID").hide(); $("#user_name").focus(); bol= false; }else{ $("#userDivId").hide(); } if(password==null || password==""){ $("#passDivId").show(); $("#passDivId").html("密码不能为空!"); $("#msgDIVID").hide(); $("#password").focus(); bol=false; }else{ $("#passDivId").hide(); } if(bol!=false){ $.ajax({ url:"/jQuery/login.do?p=loginCheck", data:{uname:username,upass:password}, success:function(data){ if(data=="1"){ $("#msgDIVID").show(); $("#msgDIVID").html("恭喜您,登录成功!"); }else if(data=="2"){ $("#msgDIVID").show(); $("#msgDIVID").html("抱歉,由于你的账号或密码登录失败!"); } } }); } } </script> </head> <body > <form name="myform"> <table> <tr> <td>UserName:</td> <td><input type="text" id="user_name"></td> <td><div id="userDivId" style="border: 0px solid red;width:200px;height:10px;color: red"></div></td> </tr> <tr> <td>PassWord:</td> <td><input type="password" id="password" size="22" name="password" /></td> <td><div id="passDivId" style="border: 0px solid red;width:200px;height:10px;color: red;"></div></td> </tr> <tr> <Td><input type="reset"/ value="重置"></Td> <Td><button name="btnSubmit" onclick="checkSubmit()">提交</button></Td> </tr> </table> <Br> <!-- 显示登陆信息的div层. --> <div id="msgDIVID" style="border:0px solid blue;color: blue;width:400px;height:30;font-weight: bold;font-size: 20px"></div> </form> </body> </html>
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下面一个是Struts Action里面的代码:
/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package pack.java.demo.struts.action; import java.io.IOException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; /** * MyEclipse Struts * Creation date: 11-04-2010 * * XDoclet definition: * @struts.action parameter="p" validate="true" */ public class LoginAction extends DispatchAction { /** * 分发Action;验证登陆方法; * @param mapping * @param form * @param request * @param response * @return */ public ActionForward loginCheck(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { //根据用户名请求; String username=request.getP