WebSite/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 BiDaoDian.Model;
using BiDaoDian.BLL;
using Common;

public partial class Login : System.Web.UI.Page
{
    UserBLL _UserBLL = new UserBLL();
    protected void Page_Load(object sender, EventArgs e)
    {
       
    }
    protected void BtnLogin_Click(object sender, EventArgs e)
    {
        //当进行表单提交时候验证
        if (IsPostBack)
        {
            //验证用户编号是否为空
            if (Request.Form["UserNo"] != "")
            {
                if (StringExtension.ToInt(Request.Form["UserNo"].ToString()) == -1)
                {
                    Response.Write("<script>alert('请输入您的警号，为纯数字!');history.go(-1);</script>");
                    Response.End();
                    return;
                }
                int userNo = StringExtension.ToInt(Request.Form["UserNo"].ToString());
                //验证密码是否为空
                if (Request.Form["PassWord"] != "")
                {
                    string userPwd = Request.Form["PassWord"].ToString().Trim();
                    //账号密码正确
                    if (_UserBLL.IsCanLog(userNo, userPwd))
                    {
                        UserModel user = _UserBLL.GetOneUserByUserNo(userNo);
                        Session["User"] = user;
                        Response.Redirect("AttdanInfo.aspx");
                    }
                    //用户名或密码出现错误
                    else
                    {
                        Response.Write("<script>alert('用户名或密码错误!');history.go(-1);</script>");
                        Response.End();
                    }

                }
                //密码为空
                else
                {
                    Response.Write("<script>alert('密码不能为空!');history.go(-1);</script>");
                    Response.End();
                }

            }
            //用户编号为空