WebSite/App_Code/SubTool.cs

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using System;
using System.Collections.Generic;
using System.Web;

using Model;
using BLL;


    public class SubTool
    {
        public static string getClientIP()
        {
            string result;

            if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null) // 判断是否设了代理
            {
                result = "代理IP";
            }
            else
            {
                result =HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString(); 
            }

            return result;
        }

        public static string  getUserLogin(string loginName, string userPwd, int loginType, string userIP)
        {
            D_User u = new D_User();
            D_UserLogin uInfo = u.LoginUser(loginName, userPwd, loginType, userIP);
            if (uInfo == null)
            {
                return "用户不存在!!";
            }
            else
            {
                if (string.IsNullOrEmpty(uInfo.Message))
                {
                    HttpContext.Current.Session["shop8517User"] = uInfo.UserId.ToString();
                    HttpCookie newcookie = new HttpCookie("shop8517User");
                    //newcookie.Expires = DateTime.Now.AddDays(1);
                    newcookie.Values["UserId"] = uInfo.UserId.ToString();
                    newcookie.Values["UserName"] =HttpContext.Current.Server.UrlEncode(uInfo.Username);
                    newcookie.Values["UserEmail"] = uInfo.UserEmail;
                    newcookie.Values["UserType"] = uInfo.UserType.ToString();
                    newcookie.Values["UserCartNum"] ="" ;//定单编号
                    newcookie.Path = "/";
                    HttpContext.Current.Response.AppendCookie(newcookie);
                    return "";
                }
                else
                {
                    return uInfo.Message;
                }
            }
        }
        public static bool CheckUserLogin(string userType)
        {
            
            HttpCookie newcookie = HttpContext.Current.Request.Cookies["shop8517User"];