在。net 5中，我使用它通过AWS fargate上的容器来检索客户端IP。

public static class HttpContextExtensions
{
    //https://gist.github.com/jjxtra/3b240b31a1ed3ad783a7dcdb6df12c36

    public static IPAddress GetRemoteIPAddress(this HttpContext context, bool allowForwarded = true)
    {
        if (allowForwarded)
        {
            string header = (context.Request.Headers["CF-Connecting-IP"].FirstOrDefault() ?? context.Request.Headers["X-Forwarded-For"].FirstOrDefault());
            if (IPAddress.TryParse(header, out IPAddress ip))
            {
                return ip;
            }
        }
        return context.Connection.RemoteIpAddress;
    }
}

你这样称呼它:

var ipFromExtensionMethod = HttpContext.GetRemoteIPAddress().ToString();

源

我发现，你们中的一些人发现你们得到的IP地址是:::1或0.0.0.1

这是一个问题，因为你试图从你自己的机器获取IP，而c#试图返回IPv6的混乱。

所以，我实现了来自@Johna (https://stackoverflow.com/a/41335701/812720)和@David (https://stackoverflow.com/a/8597351/812720)的答案，感谢他们!

下面是解决方案:

add Microsoft.AspNetCore.HttpOverrides Package in your References (Dependencies/Packages) add this line in Startup.cs public void Configure(IApplicationBuilder app, IHostingEnvironment env) { // your current code // start code to add // to get ip address app.UseForwardedHeaders(new ForwardedHeadersOptions { ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto }); // end code to add } to get IPAddress, use this code in any of your Controller.cs IPAddress remoteIpAddress = Request.HttpContext.Connection.RemoteIpAddress; string result = ""; if (remoteIpAddress != null) { // If we got an IPV6 address, then we need to ask the network for the IPV4 address // This usually only happens when the browser is on the same machine as the server. if (remoteIpAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6) { remoteIpAddress = System.Net.Dns.GetHostEntry(remoteIpAddress).AddressList .First(x => x.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork); } result = remoteIpAddress.ToString(); }

现在你可以从remoteIpAddress或result获取IPv4地址

您还可以使用api.db-ip.com web服务获取IP地址和位置。

这项服务是免费的，但有一个限制:每天1000次请求。

public string GetRemoteIP()
{
    HttpClient client = new HttpClient();
    var result = client.GetStringAsync("https://api.db-ip.com/v2/free/self").Result;
    var ip = JsonSerializer.Deserialize<RemoteIPDto>(result.ToString()).IP;
    return ip;
}
public static string GetUserAddress()
{
      HttpClient client = new HttpClient();
      var result = client.GetStringAsync("https://api.db-ip.com/v2/free/self").Result;
      var location = result.ToString();
      return remoteAddress;
}

RemoteIPDto类在哪里

public class RemoteIPDto
{
    [JsonPropertyName("ipAddress")]
    public string IP { get; set; }
    [JsonPropertyName("continentCode")]
    public string ContinentCode { get; set; }
    [JsonPropertyName("continentName")]
    public string ContinentName { get; set; }
    [JsonPropertyName("countryCode")]
    public string CountryCode { get; set; }
    [JsonPropertyName("countryName")]
    public string CountryName { get; set; }
    [JsonPropertyName("city")]
    public string City { get; set; }
}

在ASP。NET 2.1，在StartUp.cs中添加此服务:

services.AddHttpContextAccessor();
services.TryAddSingleton<IActionContextAccessor, ActionContextAccessor>();

然后做3步:

在MVC控制器中定义一个变量 private IHttpContextAccessor _accessor DI转换为控制器的构造函数 IHttpContextAccessor访问器 ｛ _accessor = accessor; ｝ 检索IP地址 _accessor.HttpContext.Connection.RemoteIpAddress.ToString ()

事情是这样的。

您可以使用IHttpConnectionFeature来获取此信息。

var remoteIpAddress = httpContext.GetFeature<IHttpConnectionFeature>()?.RemoteIpAddress;

在。net 5中，我使用它通过AWS fargate上的容器来检索客户端IP。

public static class HttpContextExtensions
{
    //https://gist.github.com/jjxtra/3b240b31a1ed3ad783a7dcdb6df12c36

    public static IPAddress GetRemoteIPAddress(this HttpContext context, bool allowForwarded = true)
    {
        if (allowForwarded)
        {
            string header = (context.Request.Headers["CF-Connecting-IP"].FirstOrDefault() ?? context.Request.Headers["X-Forwarded-For"].FirstOrDefault());
            if (IPAddress.TryParse(header, out IPAddress ip))
            {
                return ip;
            }
        }
        return context.Connection.RemoteIpAddress;
    }
}

你这样称呼它:

var ipFromExtensionMethod = HttpContext.GetRemoteIPAddress().ToString();

源