Default.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    WebService webService = new WebService();
   
    protected void Page_Load(object sender, EventArgs e)
    {
       
       
    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {

        if (this.userid.Text == "" || this.userps.Text == "")//判断是否输入完整
        {
            this.Lmag.Text = "请输入完整的帐号和密码！";
        }
        else
        {
            string strName = this.userid.Text;
            string strPsw = this.userps.Text;
            string strSql = "Select * from j_users where name='" + strName + "';";
            DataTable table = webService.ExcuteSelect(strSql);//读取用户表
            //没有此帐号
            if (table.Rows.Count == 0)
            {
                this.Lmag.Text = "对不起，没有此用户帐号！";
            }
            else
            {
                if (table.Rows[0]["psw"].ToString() == strPsw)
                {

                    Session["username"] = table.Rows[0]["name"].ToString();
                    Session["id"] = table.Rows[0]["id"].ToString();
                    Session["landingtime"] = System.DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss");
                    Response.Redirect("Welcome.aspx");
                }
                else 
                {
                this.Lmag.Text = "对不起，您的密码有误！";
                }
                   
             }
                
            }

       }
}