获取客户端自己设置的本地IP地址

  
    

   
     
   
     private
   
      
   
     string
   
      GetClientIP()
 {
  
   
     string
   
      result 
   
     =
   
      HttpContext.Current.Request.ServerVariables[
   
     "
   
     HTTP_X_FORWARDED_FOR
   
     "
   
     ];
  
   
     if
   
      (
   
     null
   
      
   
     ==
   
      result 
   
     ||
   
      result 
   
     ==
   
      String.Empty) 
 {
  result 
   
     =
   
      HttpContext.Current.Request.ServerVariables[
   
     "
   
     REMOTE_ADDR
   
     "
   
     ];
  }
  
   
     if
   
      (
   
     null
   
      
   
     ==
   
      result 
   
     ||
   
      result 
   
     ==
   
      String.Empty)
   { 
 result 
   
     =
   
      HttpContext.Current.Request.UserHostAddress;
  }
 
   
      return
   
      result;

 }