net Core 3.0+ 使用NLog日志使用

青旅半醒 2022-12-01 01:13 166阅读 0赞

### step 1  使用Nuget安装NLog包 ###

NLog

NLog.Extensions.Logging

NLog.Web.AspNetCore

### step 2  创建配置文件 ###

<?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="Off"
          throwExceptions="false">
          
      <variable name="logDirectory" value="${basedir}/logs" />  
        
      
      <extensions>
        <add assembly="NLog.Web.AspNetCore"/>
      </extensions>
    
      
      <targets>
        
        <target name="asyncFile" xsi:type="AsyncWrapper">
          
          <target name="logFile" 
                  xsi:type="File"
                  fileName="${basedir}/logs/${shortdate}/${logger}-${level}-${shortdate}.txt"
                  layout="${longdate} | ${message} ${onexception:${exception:format=message} ${newline} ${stacktrace} ${newline}"
                  archiveFileName="${basedir}/log/archives/${logger}-${level}-${shortdate}-{#####}.txt"
                  archiveAboveSize="102400"
                  archiveNumbering="Sequence"
                  concurrentWrites="true"
                  keepFileOpen="false" />
        </target>
            
        
        <target name="colorConsole" 
                xsi:type="ColoredConsole" 
                layout="[${date:format=HH\:mm\:ss}]:${message} ${exception:format=message}">
           <highlight-row condition="level == LogLevel.Debug" foregroundColor ="Blue" />
           <highlight-row condition="level == LogLevel.Info" foregroundColor ="Gray" />
           <highlight-row condition="level == LogLevel.Warn" foregroundColor ="Yellow" />
           <highlight-row condition="level == LogLevel.Error" foregroundColor ="Red" />
           <highlight-row condition="level == LogLevel.Fatal" foregroundColor ="Red" />
        </target>
      </targets>
    
      
      <rules>
        <logger name="Microsoft.*" Maxlevel="Info" writeTo="" final="true" />
        <logger name="*" minlevel="Trace" writeTo="asyncFile" />
        <logger name="*" minlevel="Trace" writeTo="colorConsole" />
      </rules>
    </nlog>

### step 3  Program.cs 加入 ###

![20200825113921872.png][]

### step 4 自定义一个类用来全局使用   ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NhbXJ0aWFu_size_16_color_FFFFFF_t_70][] ###

[20200825113921872.png]: /images/20221123/3df3c4d0cdd343fb993acfe67cc6d8c2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NhbXJ0aWFu_size_16_color_FFFFFF_t_70]: /images/20221123/ce4a36e1f2e44e08a1b1055a5abd3dc2.png