DsJian/Utilities/HttpDeal.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.IO;

namespace DsJian
{
    public static class HttpDeal
    {
        #region IP处理

        /// <summary>
        /// 获取客户端IP
        /// </summary>
        /// <returns></returns>
        public static string GetClientIP()
        {
            if (HttpContext.Current == null) return "localhost";
            HttpRequest request = HttpContext.Current.Request;
            if (request.ServerVariables["HTTP_X_FORWARDED_FOR"] == null)
            {
                return request.ServerVariables["Remote_Addr"];
            }
            return request.ServerVariables["HTTP_X_FORWARDED_FOR"];
        }

        /// <summary>
        /// 获取截断的IP字符串
        /// </summary>
        /// <returns></returns>
        public static string GetDimClientIP()
        {
            return GetDimClientIP(2);
        }

        /// <summary>
        /// 获取截断的IP字符串，指定IP
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static string GetDimClientIP(String ip)
        {
            return GetDimClientIP(2, ip);
        }

        /// <summary>
        /// 获取截断的IP字符串
        /// </summary>
        /// <returns></returns>
        public static string GetDimClientIP(int length)
        {
            return GetDimClientIP(length, GetClientIP());
        }

        /// <summary>
        /// 获取截断的IP字符串
        /// </summary>
        /// <returns></returns>
        public static string GetDimClientIP(int length, String ip)