獲取IP地址

Question

如何在文本框中獲取並顯示當前的查看器IP地址？

Answer 1

你可以使用HttpRequest.UserHostAddress財產或HttpRequest.ServerVariables收集的REMOTE_ADDR關鍵，他們都是string，而你只需要它的價值分配給您的文本框：

HttpContext.Current.Request.UserHostAddress; 

或

HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; 

Answer 2

/// <summary> 
/// IP Adress of computer 
/// </summary> 
/// <returns>return a string value(Ip address)</returns> 
public static string IPaddress() 
{ 
    String strHostName = ""; 
    strHostName = Dns.GetHostName(); 
    IPHostEntry ipEntry = Dns.GetHostByName(strHostName); 
    IPAddress[] addr = ipEntry.AddressList; 
    string IPaddress = ""; 
    for (int i = 0; i < addr.Length; i++) 
    { 
     IPaddress = addr[i].ToString().Trim(); 
    } 
    return IPaddress; 
}