Web/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 MyBookShop.Model;
using MyBookShop.BLL;

public partial class login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            checkNo.Create();
        }
    }

    /// <summary>
    /// 登陆
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnLogin_Click(object sender, EventArgs e)
    {
        //非空验证
        if (txtUserName.Text.Trim().Length == 0)
        {
            this.ClientScript.RegisterStartupScript(this.GetType(), "1", "<script type='text/javascript'>alert('请输入用户名')</script>");
            return;
        }
        if (txtPwd.Text.Trim().Length == 0)
        {
            this.ClientScript.RegisterStartupScript(this.GetType(), "2", "<script type='text/javascript'>alert('请输入密码')</script>");
            return;
        }
        if (txtCheckNo.Text.Trim().Length == 0)
        {
            this.ClientScript.RegisterStartupScript(this.GetType(), "3", "<script type='text/javascript'>alert('请输入验证码')</script>");
            return;
        }
        if (!checkNo.CheckSN(txtCheckNo.Text.Trim()))
        {
            checkNo.Create();
            this.ClientScript.RegisterStartupScript(this.GetType(), "4", "<script type='text/javascript'>alert('验证码错误')</script>");
            return;
        }

        Users user = null;
        string loginId = txtUserName.Text.Trim();
        string loginPwd = txtPwd.Text.Trim();
        UsersManager um = new UsersManager();
        user = um.UserLogin(loginId, loginPwd);
        if (user != null)
        {
            this.ClientScript.RegisterStartupScript(this.GetType(), "1", "<script type='text/javascript'>alert('登录成功')</script>");
            Session["LoginUser"] = user;
            Response.Redirect("Index.aspx");
        }