1.前台页面(Default.aspx)：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<head runat="server"> <title>修改密码</title> <script type="text/javascript" src="JS/jquery-1.4.2.min.js"></script><%--添加对JQuery类库的引用--%> <script type="text/javascript">var oldPwdPass=false;var newPwdPass=false;var newPwd;function checkOldPwd(pwd){ if(pwd==""||pwd==null) { document.getElementById("get_old_passwordMsg").innerHTML="旧密码不能为空！"; return false; } else if(validatePwd(pwd)) { document.getElementById("get_old_passwordMsg").innerHTML="旧密码只能是6-16位的字母或数字！"; return false; } else { document.getElementById("get_old_passwordMsg").innerHTML=""; //下面自动调用引用的JQuery类库 $.ajax({ type:"get", 转到一般处理程序 data:{"Pwd":pwd,"random":Math.random()}, success:function(data) { if(data=="true") { oldPwdPass=true; return true; } else { document.getElementById("get_old_passwordMsg").innerHTML="旧密码输入错误！"; document.getElementById("get_old_password").value=""; return false; } } }); } }function checkNewPwd(pwd)
{ if(pwd==""||pwd==null) { document.getElementById("get_new_passwordMsg").innerHTML="新密码不能为空！"; return false; } else if(validatePwd(pwd)) { document.getElementById("get_new_passwordMsg").innerHTML="新密码只能是6-16位的字母或数字！"; return false; } else { newPwd=pwd; document.getElementById("get_new_passwordMsg").innerHTML=""; return true; } }function checkConfirmNewPwd(pwd)
{ if(pwd==""||pwd==null) { document.getElementById("confirm_new_passwordMsg").innerHTML="确认新密码不能为空！"; return false; } else if(validatePwd(pwd)) { document.getElementById("confirm_new_passwordMsg").innerHTML="确认新密码只能是6-16位的字母或数字！"; return false; } else { document.getElementById("confirm_new_passwordMsg").innerHTML=""; if(newPwd!=""&&newPwd!=null) { if(newPwd!=pwd) { document.getElementById("confirm_new_passwordMsg").innerHTML="确认新密码与新密码不一致！"; document.getElementById("confirm_new_password").value=""; return false; } else { document.getElementById("confirm_new_passwordMsg").innerHTML=""; newPwdPass=true; return true; } } else { document.getElementById("get_new_passwordMsg").innerHTML="新密码不能为空！"; return false; } } }function validatePwd(pwd)
{ regularPaw=/^[\dA-Za-z(; if(regularPaw.test(pwd)==false) { return true; } else { return false; }}function updateNewPwd()
{ if(oldPwdPass&&newPwdPass) { oldPwdPass=false; newPwdPass=false; $.ajax({ type:"get", 转到一般处理程序 data:{"NewPwd":newPwd,"random":Math.random()}, success:function(data) { if(data=="true") { document.getElementById("get_old_password").value=""; document.getElementById("get_new_password").value=""; document.getElementById("confirm_new_password").value=""; alert("密码修改成功！"); } else { document.getElementById("get_old_password").value=""; document.getElementById("get_new_password").value=""; document.getElementById("confirm_new_password").value=""; alert("密码修改失败，请重新修改！"); } } }); } else { alert("请填写完整修改密码所必需的信息！"); } return false;}</script>
</head><body> <form id="formBody" runat="server"> <div> <div> <div> <b id="psnB1"></b><h3>修改密码：</h3> </div> <div class="ln-thin ln-c-mid"></div> <div style="height:1px; background-color:White"></div> <table id="psnB1Table"> <tbody> <tr> <th><label for="get_cust_name">您的会员登录名是：</label></th> <td> <asp:Label ID="get_cust_name" runat="server" Text="Label" Font-Bold="True"></asp:Label> </td> </tr> <tr> <th><label for="get_old_password">旧密码：</label></th> <td> <input id="get_old_password" type="password" οnblur="checkOldPwd(this.value);" CssClass="required oldpawcl"/> <span style="color:Red; font-size:14px">*</span> <label id="get_old_passwordMsg" class="errorMsg"></label> </td> </tr> <tr> <th><label for="get_new_password">新密码：</label></th> <td> <input id="get_new_password" type="password" οnblur="checkNewPwd(this.value);" CssClass="required newpawcl"/> <span style="color:Red; font-size:14px">*</span> <label id="get_new_passwordMsg" class="errorMsg"></label> </td> </tr> <tr> <th><label for="confirm_new_password">确认新密码：</label></th> <td> <input id="confirm_new_password" type="password" οnblur="checkConfirmNewPwd(this.value);" CssClass="required cfnewpawcl"/> <span style="color:Red; font-size:14px">*</span> <label id="confirm_new_passwordMsg" class="errorMsg"></label> </td> </tr> </tbody> </table> </div> <div style="margin-bottom:-1px"> <div class="ln-thin ln-c-mid"></div> <div style="height:1px; background-color:White"></div> <div id="psnTable4"></div> </div> <table> <tbody> <tr> <th> </th> <td> <asp:Button ID="Finish" CssClass="Button" runat="server" Text="修 改" OnClientClick="javascript:return updateNewPwd();" /> </td> </tr> </tbody> </table> </div> </form></body></html>2.后台代码页(Default.aspx.cs)：
using System;
using System.Configuration;using System.Data;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;public partial class _Default : System.Web.UI.Page
{ protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Session["UserId"] = "001"; Session["UserName"] = "HEHE"; } get_cust_name.Text = Session["UserName"].ToString();//获取当前登录用户的Session中的UserName }}
3.一般处理程序1（CheckPwd.ashx）：
<%@ WebHandler Language="C#" class="CheckPwd" %>
using System;
using System.Web;public class CheckPwd : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{public void ProcessRequest(HttpContext context)
{ context.Response.ContentType = "text/plain"; string pwd = context.Request["Pwd"];string userId = context.Session["UserId"].ToString();
string dbPwd = "123456";//演示密码 //string dbPwd=UpdatePasswordService.GetDbPwd(userId);//自己写的类中的方法，从数据库中取出密码。 if (pwd == dbPwd) { context.Response.Write("true"); } else { context.Response.Write("false"); } }public bool IsReusable
{ get { return false; } }}
4.一般处理程序2（UpdatePwd.ashx）：
<%@ WebHandler Language="C#" class="UpdatePwd" %>
using System;
using System.Web;public class UpdatePwd : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{public void ProcessRequest(HttpContext context)
{ context.Response.ContentType = "text/plain"; string newPwd = context.Request["NewPwd"]; string userId = context.Session["UserId"].ToString(); bool result = true;//演示结果 //bool result = UpdatePasswordService.UpdatePwd(userId, encryptPwd);//自己写的类中的方法，更新密码并返回是否成功。 if (result) { context.Response.Write("true"); } else { context.Response.Write("false"); } }public bool IsReusable
{ get { return false; } }}