如何配置NLog来获取IP地址.NET Core [英] How to configure NLog to get IP address .NET Core

问题描述

我开发.net核心应用程序，并使用 NLog 作为日志记录框架.

I develop .net core app and use NLog as logging framework.

如何设置NLog布局以获取远程IP地址?

How can I setup NLog layout to get remote IP address?

不幸的是， NLog.Web.AspNetCore 不支持${aspnet-request.serverVariable=remote_addr}.

也许我可以通过某种方式访问​​httpContext.Connection.RemoteIpAddress.

May be I can get access to httpContext.Connection.RemoteIpAddress somehow.

推荐答案

从NLog.Web.AspNetCore 4.4.0开始支持.

This is supported since NLog.Web.AspNetCore 4.4.0.

1. 安装软件包 NLog.Web.AspNetCore

2. 在您的配置中设置

1. Install the package NLog.Web.AspNetCore

2. Set in your config

<!-- enable asp.net core layout renderers -->
<extensions>
  <add assembly="NLog.Web.AspNetCore"/>
</extensions>

您现在可以在配置中使用${aspnet-request-ip}.

PS:NLog.Web 4.5.0中的ASP.NET也受支持

PS: also supported for ASP.NET in NLog.Web 4.5.0

当前不支持此功能，但是您可以将其注入NLog中，如下所示:

Currently this is not supported, but you could inject it in NLog like this:

using System;
using System.Text;
using Microsoft.AspNetCore.Http;
using NLog.Config;
using NLog.LayoutRenderers;
using NLog.Web.Internal;

namespace NLog.Web.LayoutRenderers
{
    /// <summary>
    /// Render the request IP for ASP.NET Core
    /// </summary>
    /// <example>
    /// <code lang="NLog Layout Renderer">
    /// ${aspnet-request-ip}
    /// </code>
    /// </example>
    [LayoutRenderer("aspnet-request-ip")]
    public class AspNetRequestIpLayoutRenderer : AspNetLayoutRendererBase
    {

        protected override void DoAppend(StringBuilder builder, LogEventInfo logEvent)
        {
            var httpContext = HttpContextAccessor.HttpContext;
            if (httpContext == null)
            {
                return;
            }
            builder.Append(httpContext.Connection.RemoteIpAddress);
        }
    }
}

注册(startup.cs)

Register it (startup.cs)

ConfigurationItemFactory.Default.LayoutRenderers
    .RegisterDefinition("aspnet-request-ip", typeof(AspNetRequestIpLayoutRenderer));

另请参见扩展NLog

用法

${aspnet-request-ip}

还包括NLog.Web.AspNetCore！

Also include NLog.Web.AspNetCore!

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