添加-密码-加密 

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Add.aspx.cs" Inherits="Add" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
    </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.Security.Cryptography;
using System.Data;
using System.Data.SqlClient;
public partial class Add : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    //MD5 加密用户密码
    public static string GetMD5(string str_data)
    {
        MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
        Byte[] bytValue;
        Byte[] bytText;
        bytValue = System.Text.Encoding.UTF8.GetBytes(str_data);
        bytText = md5.ComputeHash(bytValue);
        return Convert.ToBase64String(bytText);
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        SqlConnection conn = new SqlConnection("server=.;database=cs;uid=sa;pwd=");
        conn.Open();
        string sql_str = "INSERT INTO login_user (txtuser,txtpassword) VALUES ('"+TextBox1.Text+"', '"+GetMD5(TextBox2.Text)+"')";
        SqlCommand cmd = new SqlCommand(sql_str,conn);
        cmd.ExecuteNonQuery();
    }
}


登陆的时候，把密码加密再去比对。

posted on 2011-12-27 16:35  daywrite  阅读(139)  评论(0)    收藏  举报

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