asp.net擷取用戶端IP Class

 1 using System;
 2 using System.Web;
 3 
 4 
 5 namespace Plugins
 6 {
 7     public class ClientIP
 8     {
 9         public static string GetUserIP()
10         {
11             string result = String.Empty;
12 
13             result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
14             if (null == result || result == String.Empty)
15             {
16                 result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
17             }
18 
19             if (null == result || result == String.Empty)
20             {
21                 result = HttpContext.Current.Request.UserHostAddress;
22             }
23 
24             if (null == result || result == String.Empty)
25             {
26                 return "0.0.0.0";
27             }
28 
29             return result;
30         }
31     }
32 }

//注釋就不寫了，自己調用就行了。