HyperLesson/Login.aspx.cs

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using BLL;
using Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace HyperLesson
{
    public partial class Login1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            
        }
        //MD5加密
        // 32 位
        public static String Encrypt(String s)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] bytes = System.Text.Encoding.UTF8.GetBytes(s);
            bytes = md5.ComputeHash(bytes);
            md5.Clear();
            string ret = "";
            for (int i = 0; i < bytes.Length; i++)
            {
                ret += Convert.ToString(bytes[i], 16).PadLeft(2, '0');
            }
            return ret.PadLeft(32, '0');
        }
        protected void loginteacher_Click(object sender, EventArgs e)
        {
            if (Page.IsPostBack)
            {
                if (userPwd.Text.Length <6 || userPwd.Text.Length >16)
                {
                    Response.Write("<script>alert('密码长度超出范围！');location.href='Login.aspx';</script>");
                    return;
                }
                if (this.userName.Text != "" && this.userPwd.Text != "")
                {
                    if (this.userName.Text == "admin")
                    {
                        Session["userName"] = this.userName.Text;
                        //获取用户名和密码
                        string userName = Request["userName"];
                        //string userPwd = Encrypt(Request["userPwd"]);
                        string userPwd = Request["userPwd"];
                        Model.Admin qmz = LoginManager.getAdminInfo(userName, userPwd);
                        if (qmz == null)
                        {
                            Response.Write("<script>alert('账号或密码不正确！');location.href='Login.aspx';</script>");
                            return;
                        }
                        Session["userinfo"] = qmz;
                        //引用BLL里的BLL_yanZheng()方法，实例化对象
                        LoginManager tbl = new LoginManager();