实现用户注册时，向其邮箱发送激活码邮件，并进行状态处理
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web页的设计：
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
<connectionStrings>
<add name="studentconStr" connectionString="Data Source=.;Initial Catalog=数据库名;User ID=连接数据库账号;Password=连接数据库密码"/> </connectionStrings> </configuration>
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regin.aspx页的设计：
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.style1 { width: 237px; }
.style2 { width: 91px; }
</style> </head>
<body> <
form id="form1" runat="server">
<div style="background-color:#eeeeee">
<table style="width:50%;">
<tr> <td class="style1">用户名：</td>
<td class="style2"> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> </td></tr>
<tr> <td class="style1">密码：</td>
<td class="style2"> <asp:TextBox ID="TextBox2" runat="server" style="margin-left: 0px"></asp:TextBox></td></tr>
<tr><td class="style1"> 邮箱地址：</td>
<td class="style2"><asp:TextBox ID="TextBox3" runat="server"></asp:TextBox></td></tr>
<tr><td class="style1"><asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" /></td><td class="style2"> </td></tr>
</table></div></form>
</body> </html>
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regin.aspx.cs页的设计：
namespace 激活注册
{
public partial class regin : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public void sendMail(string email, string activeCode)
{
MailMessage mailMsg = new MailMessage();
mailMsg.From = new MailAddress("126邮箱的账号");
mailMsg.To.Add(email);
mailMsg.Subject = "请激活注册";
StringBuilder contentBuilder = new StringBuilder();
contentBuilder.Append("请单击以下链接完成激活");
contentBuilder.Append("<a href='CheckActiveCode.aspx ?activecode=" + activeCode + "&id=8'>激活</a>");
mailMsg.Body = contentBuilder.ToString();//拼接字符串
mailMsg.IsBodyHtml = true;
SmtpClient client = new SmtpClient(); //发件方服务器地址
client.Host = "smtp.126.com";
NetworkCredential credetial = new NetworkCredential();
credetial.UserName = "126邮箱的账号";
credetial.Password = "126邮箱的密码";
client.Credentials = credetial;
client.Send(mailMsg); }
protected void Button1_Click(object sender, EventArgs e)
{
string username = this.TextBox1.Text;
string password = this.TextBox2.Text;
string email = this.TextBox3.Text;
//生成激活码,Guid为唯一标示符
string activeCode = Guid.NewGuid().ToString().Substring(0, 8);//生成激活码
string conStr = ConfigurationManager.ConnectionStrings["studentconStr"].ConnectionString;
int number;
using (SqlConnection con = new SqlConnection(conStr))
{
string sql = "insert into 数据库名 (UserName,PassWord,Email,Active,ActiveCode) values(@username,@password,@email,@active,@activecode)"; SqlParameter[] prams=new SqlParameter[]{
new SqlParameter("@username",username),
new SqlParameter("@password",password),
new SqlParameter("@email",email),
new SqlParameter("@active",false),
new SqlParameter("@activecode",activeCode) };
using (SqlCommand cmd = new SqlCommand(sql, con))
{ con.Open();
cmd.Parameters.AddRange(prams);
number=cmd.ExecuteNonQuery(); } }
if (number > 0) {
sendMail(email, activeCode);//给注册用户发邮件
Response.Redirect("reginMessage.aspx"); }
else { Response.Write("注册失败，请重新注册！");
}
}
} }
========================================================================
CheckActiveCode.aspx.cs设计：
protected void Page_Load(object sender, EventArgs e)
{ //1、取出参数id
int id = Convert.ToInt32(Request["id"]);
string activeCode = Request["activecode"].ToString();
//2、判断id为id的记录是否存在 //连接数据库
string conStr = ConfigurationManager.ConnectionStrings["studentconStr"].ConnectionString;
int number;
using (SqlConnection con = new SqlConnection(conStr))
{ string sql = "select count(*) from 数据库名 where id=@id";
using (SqlCommand cmd = new SqlCommand(sql, con))
{ con.Open();
cmd.Parameters.AddWithValue("@id", id);
number = Convert.ToInt32(cmd.ExecuteScalar()); } }
if (number > 0) {
string AC; //如果该用户存在取出器ActiveCode字段进行比较，如果一样，把Active字段改为true
using (SqlConnection con = new SqlConnection(conStr))
{
string sql = "select ActiveCode from 数据库名 where id=@id";
using (SqlCommand cmd = new SqlCommand(sql, con))
{ con.Open();
cmd.Parameters.AddWithValue("@id", id);
AC = cmd.ExecuteScalar().ToString(); } }
if (activeCode == AC) {
Response.Write("激活成功");
using (SqlConnection con = new SqlConnection(conStr)) {
string sql = "update 数据库名 set Active=true where id=@id";
using (SqlCommand cmd = new SqlCommand(sql, con)) {
con.Open();
cmd.Parameters.AddWithValue("@id", id);
number = Convert.ToInt32(cmd.ExecuteScalar());
} } }
else {
Response.Write("用户名已存在，但激活验证码错误"); } }
else { Response.Write("用户名不存在，还没注册成功"); } }
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reginMessage.aspx设计：
<body>
<form id="form1" runat="server"> <div>
恭喜您，注册成功！请激活! </div>
</form> </body>