C#获取网络IP，获取ip地址

原创已于 2022-03-07 14:38:23 修改 · 5.1k 阅读

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于 2022-03-07 14:32:47 首次发布

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这篇博客介绍了在ASP.NET中如何通过HTTP请求获取用户IP地址。首先，通过`HttpContextBase`和`HttpRequestBase`获取请求对象，然后尝试从`HTTP_X_FORWARDED_FOR`或`REMOTE_ADDR`变量获取网络IP。如果网络IP为空，则转而获取局域网IP。该方法适用于处理代理服务器和本地网络环境的情况。

1 网络请求接口时，获取ip
01.

[HttpPost]
[Route("Login")]
public HttpResponseMessage UserLogin()
 {
 ReturnResult result = new ReturnResult() { code = "", msg = "" };
HttpContextBase context = (HttpContextBase)Request.Properties["MS_HttpContext"];//获取传统context
HttpRequestBase request = context.Request;//定义传统request对象

string ip=getIP();
}

02.获取ip的方法

public string  getIP()
{
string ip="":
//先获取网络请求的ip
string textip=HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] ?? HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

         foreach (var hostAddress in Dns.GetHostAddresses(textip))
            {
                if (hostAddress.AddressFamily == AddressFamily.InterNetwork)
                  ip=  hostAddress.ToString();
            }


//如果网络ip为空，则获取局域网ip
  if(ip	=="")	
  {
           foreach (var hostAddress in Dns.GetHostAddresses(Dns.GetHostName()))
            {
                if (hostAddress.AddressFamily == AddressFamily.InterNetwork)
                    ip=hostAddress.ToString();
            }

  }
return ip；
}