dotnet core获取ip

1.Startup.cs添加

app.UseForwardedHeaders(new ForwardedHeadersOptions
{
    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});

2.扩展方法

public static string GetClientUserIp(this HttpContext context)
{
    var ip = context.Request.Headers["X-Forwarded-For"].FirstOrDefault();
    if (string.IsNullOrEmpty(ip))
    {
        ip = context.Connection.RemoteIpAddress.ToString();
    }
    return ip;
}

3.nginx配置

location /API {
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_pass http://localhost:5000;
}