Web/Admin/Login.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Security;

namespace cosmos.Web.Admin
{
    public partial class Login : System.Web.UI.Page
    {
        cosmos.BLL.Admin bll = new BLL.Admin();

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                this.ViewState["GUID"] = System.Guid.NewGuid().ToString();
                this.lblGUID.Text = this.ViewState["GUID"].ToString();
            }
        }

        protected void logindl_Click(object sender, ImageClickEventArgs e)
        {
            if ((Session["CheckCode"] != null) && (Session["CheckCode"].ToString() != ""))
            {
                #region 记录登录次数
                if (Session["AdminLoginSun"] == null)
                {
                    Session["AdminLoginSun"] = 1;
                }
                else
                {
                    Session["AdminLoginSun"] = Convert.ToInt32(Session["AdminLoginSun"]) + 1;
                }
                //判断登录
                if (Session["AdminLoginSun"] != null && Convert.ToInt32(Session["AdminLoginSun"]) > 3)
                {
                    this.logindl.Enabled = false;
                    this.txtCode.Text = "";
                    this.txtName.Enabled = false;
                    this.txtPwd.Enabled = false;
                    this.lblMsg.Text = "对不起，你错误登录了三次，系统登录锁定!";
                }
                #endregion

                string UserName = txtName.Text.Trim();
                string UserPwd = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(this.txtPwd.Text.ToString(), "MD5");
                if (UserName.Equals("") || UserPwd.Equals(""))
                {
                    lblMsg.Text = "请输入您要登录用户名或密码";
                }
                else
                {
                    //if (Session["CheckCode"].ToString().ToLower() != this.txtCode.Text.ToLower())
                    //{
                    //    this.lblMsg.Text = "您输入的验证码不正确，请重新输入！";
                    //    this.txtCode.Text = "";
                    //    Session["CheckCode"] = null;