asp.net实现忘记密码找回的代码

浏览数：41 / 时间：2015年06月09日

1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 
 3 <html xmlns="http://www.w3.org/1999/xhtml" >
 4 <head id="Head1" runat="server">
 5 <title>个人会员密码找回</title>
 6 <link href="/style.css" rel="stylesheet" type="text/css" />
 7 <script language="javascript" type="text/javascript">
 8 // 检查 E-mail 是否已被注册
 9 function CheckEmail()
10 {
11 var e = document.getElementById("email").value;
12 if(e != "")
13 {
14 if(!/(\S)+[@]{1}(\S)+[.]{1}(\w)+/.test(e)) 
15 {
16 alert("请输入格式正确的E-mail 地址！");
17 var email = document.getElementById ( "email" );
18 email.value = "";
19 email.focus ();
20 } 
21 } 
22 }
23 
24 function checkAll()
25 {
26 var ee = document.getElementById("username").value;
27 if(ee == "")
28 {
29 alert(‘登录名称不能为空‘);
30 return false; 
31 }
32 
33 var e = document.getElementById("email").value;
34 if(e == "")
35 {
36 alert(‘Emial不能为空‘);
37 return false; 
38 }
39 
40 
41 }
42 
43 </script>
44 </head>
45 <body>
46 <form id="form1" runat="server">
47 <div> 
48 <table width="778" border="0" align="center" cellpadding="5" cellspacing="0" class="table_huang">
49 <tr>
50 <td colspan="2" class="TD_huang_14_write"> <span style="font-size: 11pt">>> 获取密码</span></td>
51 </tr>
52 <tr>
53 <td width="26"></td>
54 <td width="724"><table width="90%" border="0" cellspacing="2" cellpadding="5">
55 <tr>
56 <td width="23%"><div align="right">用户名：</div></td>
57 <td width="77%">
58 <asp:TextBox ID="username" runat="server" Width="150px" ></asp:TextBox></td>
59 </tr>
60 <tr>
61 <td><div align="right">注册时填写的Email：</div></td>
62 <td>
63 <asp:TextBox ID="email" runat="server" Width="200px" ></asp:TextBox></td>
64 </tr>
65 <tr>
66 <td><div align="right">验证码：</div></td>
67 <td><table width="100%">
68 <tr>
69 <td align="left" valign="top" style="width: 64px"><asp:TextBox ID="txt_validcode" runat="server" Height="15px" Width="62px"></asp:TextBox> </td>
70 <td align="left" valign="top"><img id="yzm" src="../ValidateCode.aspx" /></td>
71 </tr>
72 </table></td>
73 </tr>
74 <tr>
75 
76 <td colspan="2" style="text-align: center">
77 <asp:Button ID="Button1" runat="server" Text=" 找回密码 " /></td>
78 </tr>
79 </table> </td>
80 </tr>
81 </table> 
82 </div>
83 </form>
84 </body>
85 </html>

后端源码：

  1 using System;
  2 using System.Data;
  3 using System.Configuration;
  4 using System.Collections;
  5 using System.Web;
  6 using System.Web.Security;
  7 using System.Web.UI;
  8 using System.Web.UI.WebControls;
  9 using System.Web.UI.WebControls.WebParts;
 10 using System.Web.UI.HtmlControls;
 11 
 12 
 13 
 14 public partial class ClientServer_Default2 : System.Web.UI.Page
 15 {
 16 string lspass = "";
 17 
 18 protected void Page_Load(object sender, EventArgs e)
 19 {
 20 if (!IsPostBack)
 21 {
 22 this.Button1.Attributes.Add("onclick", "javascript:return checkAll();");
 23 }
 24 
 25 }
 26 protected void Button1_Click(object sender, EventArgs e)
 27 {
 28 HttpCookie myCookie_validcode = Request.Cookies["FWCX_CheckCode"];
 29 if (myCookie_validcode.Value.ToString() != txt_validcode.Text)
 30 {
 31 Response.Write("<script>");
 32 Response.Write("alert(‘验证码错误‘)");
 33 Response.Write("</script>");
 34 return;
 35 }
 36 
 37 //首先判断该登录名称和email是否存在
 38 string sql = "select * from t_users where u_username=‘" + username.Text.Trim() + "‘ and u_email=‘" + email.Text.Trim() + "‘ and u_class=‘0‘ and u_valid=‘1‘";
 39 DataTable dt = new DataTable();
 40 //dt = new SQLTool().dataTable(sql);
 41 
 42 if (dt.Rows.Count < 1)
 43 {
 44 Response.Write("<script>alert(‘登录名称或Email地址错误！，请重新填写后再试。‘);</script>");
 45 
 46 }
 47 else
 48 {
 49 //首先给现在的数据库t_users附上一个临时密码
 50 //Response.Write(CreateRandomCode(8));
 51 lspass = CreateRandomCode(8);
 52 sql = "update t_users set u_getpwd=‘" + lspass + "‘ where u_username=‘" + username.Text.Trim() + "‘ and u_email=‘" + email.Text.Trim() + "‘ and u_class=‘0‘ and u_valid=‘1‘";
 53 //if (new SQLTool().ExecuteSql(sql) >= 0)
 54 //{
 55 sendEmail(email.Text.Trim(), username.Text.Trim());
 56 Response.Write("<script>alert(‘临时密码已经发送到您的注册Email中，请在下一页面中修改密码。‘);window.location.href=‘getpwdconfirm.aspx‘;</script>");
 57 //}
 58 }
 59 }
 60 public void sendEmail(string email, string name)
 61 {
 62 try
 63 {
 64 jmail.Message jmessage = new jmail.Message();
 65 jmessage.Charset = "GB2312";
 66 jmessage.From = "[email protected]";
 67 // 发信地址 
 68 jmessage.MailServerUserName = "86085005";
 69 //smtp认证用户名(注:如为网易用户,不加要@163.com,只要前面部分即可)
 70 jmessage.MailServerPassWord = "kingseer";
 71 // smtp论证用户名密码 
 72 
 73 jmessage.FromName = "108人力银行";
 74 // 发信人 
 75 jmessage.ReplyTo = "[email protected]";
 76 // 回复地址 
 77 jmessage.C;//邮件内容为html
 78 jmessage.Subject = "108人力银行临时密码";
 79 
 80 string strbody = "";
 81 strbody += new functions().getInfoXX("t_pagetexts", "p_name", "找回密码邮件反馈-个人", "p_value").Replace("$", name).Replace("@%", lspass);
 82 jmessage.HTMLBody = strbody;
 83 // 邮件标题 
 84 jmessage.AddRecipient(email, "", "");
 85 jmessage.Send("smtp.163.com", false);//发送邮件smtp.163.com
 86 jmessage.Close();//关闭对象,释放资源
 87 
 88 
 89 }
 90 catch (Exception err)
 91 {
 92 Response.Write(err);
 93 }
 94 }
 95 /// <summary>
 96 /// 功能：产生数字和字符混合的随机字符串
 97 /// </summary>
 98 /// <param name="codecount">字符串的个数</param>
 99 /// <returns></returns>
100 private string CreateRandomCode(int codecount)
101 {
102 
103 // 数字和字符混合字符串
104 string allchar = "0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,i,j,k,l,m,n";
105 //分割成数组
106 string[] allchararray = allchar.Split(‘,‘);
107 string randomcode = "";
108 
109 //随机数实例
110 System.Random rand = new System.Random(unchecked((int)DateTime.Now.Ticks));
111 for (int i = 0; i < codecount; i++)
112 {
113 //获取一个随机数
114 int t = rand.Next(allchararray.Length);
115 //合成随机字符串
116 randomcode += allchararray[t];
117 }
118 return randomcode;
119 }
120 
121 }