SysManage/Login.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;
using System.Data.SqlClient;

public partial class SysManage_Login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        { 
        
        }
    }
    protected void imbtnSubmit_Click(object sender, EventArgs e)
    {
        ltlMess.Text = "";
        string user = txt_user.Value.Trim();
        string pwd = txt_pwd.Value;

        string sql = "select * from users where no='" + user + "' and password='" + pwd + "'";
        DataTable dt = DB.getDataTable(sql);


        if (dt.Rows.Count>0)
        {
            //更新登录次数
            //string sqlupdate = "update Manager set LoginCount=LoginCount+1 where ManagerUser='" + user + "' and ManagerPwd='" + pwd + "'";
           // DB.ExecuteSql(sqlupdate);

            //Cookie记录用户登录信息
            HttpCookie cookies;
            cookies = new HttpCookie("xzfgw");
            cookies.Values.Add("Manager", HttpUtility.UrlEncode(this.txt_user.Value.Trim()));
            Response.Cookies.Set(cookies);
            Session["id"] = dt.Rows[0]["id"].ToString();
            Session["realname"] = dt.Rows[0]["realname"].ToString();
            Session["roles"] = dt.Rows[0]["roles"].ToString();
            string roles = dt.Rows[0]["roles"].ToString();
            if (roles.Equals("管理员"))
            {
                Response.Redirect("MainFrame.aspx");
            }
            else if (roles.Equals("院系领导"))
            {
                Response.Redirect("MainFrame2.aspx");
            }
            else if (roles.Equals("任课老师"))
            {
                Response.Redirect("MainFrame3.aspx");
            }
            
        }