<%@ Page Language="C#" Debug="true" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
邮 箱：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="发送验证码" /><br /><br />
验证码：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Label ID="Label1" runat="server" Text="" ForeColor="Red"></asp:Label><br /><br />
<asp:Button ID="Button2" runat="server" Text="验证" />
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Net.Mail;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Button1.Click += Button1_Click;
Button2.Click += Button2_Click;
}
//发送按钮
void Button1_Click(object sender, EventArgs e)
{
//创建外部的smtp服务客户端对象
SmtpClient smtp = new SmtpClient("smtp.sina.cn");
//创建证书对象
NetworkCredential cred = new NetworkCredential("18560812711@sina.cn", "hq1234561");
//服务器证书指向
smtp.Credentials = cred;
//验证码
Random r = new Random();
string str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
string yzm = str.Substring(r.Next(0 ,str.Length ),4);
Session["yzm"] = yzm;
//标题
string subject = "来自XX官网的邮件验证";
//内容
string context = "您的邮箱验证码为[" + yzm + "]，请在20分钟内填写验证！此邮件为系统邮件，勿回复！";
//将邮件发送到指定服务器
smtp.Send("18560812711@sina.cn", TextBox1.Text.Trim(), subject, context);
}
//验证按钮
void Button2_Click(object sender, EventArgs e)
{
if (TextBox2.Text.ToUpper() == Session["yzm"].ToString().ToUpper())
{
Label1.Text = "验证码错误";
}
else { Label1.Text = ""; }
}
}
