1. 安装包：NLog.Web.AspNetCore
2. web项目根目录添加nlog.config

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      autoReload="true"
      internalLogLevel="Info"
      internalLogFile="c:\temp\internal-nlog-AspNetCore.txt">

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

    <variable name="logDirectory" value="logs/${shortdate}"/>
    <variable name="appName" value="YourProject.Name"/>


    <!-- the targets to write to -->
    <targets>
        <!-- File Target for all log messages with basic details -->
        <target xsi:type="File" name="allfile" fileName="${logDirectory}/${appName}.log"
                layout="${longdate}|${event-properties:item=EventId:whenEmpty=0}|${level:uppercase=true}|${logger}|${message} ${exception:format=tostring}" />

        <!--Console Target for hosting lifetime messages to improve Docker / Visual Studio startup detection -->
        <target xsi:type="Console" name="lifetimeConsole" layout="${MicrosoftConsoleLayout}" />
    </targets>

    <!-- rules to map from logger name to target -->
    <rules>
        <logger name="Microsoft.Hosting.Lifetime" minlevel="Info" writeTo="lifetimeConsole, allfile" final="true" />
        <logger name="Microsoft.*" maxlevel="Info" final="true" />
        <logger name="System.Net.Http.*" maxlevel="Info" final="true" />
        <logger name="Hangfire.*" maxlevel="Info" final="true" />
        
        <logger name="*" minlevel="Info" writeTo="allfile" />
    </rules>
</nlog>

3. program.cs中配置

builder.Logging.ClearProviders();
builder.Host.UseNLog();