.net core使用NLog+Elasticsearch记录日志

添加Nuget引用

       需要添加两个Nuget引用：NLog.Web.AspNetCore和NLog.Targets.ElasticSearch

配置nlog.config配置文件

       配置文件如下：

<?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"
      internalLogToConsole="true">
  <extensions>
    <add assembly="NLog.Targets.ElasticSearch"/>
  </extensions>

  <targets>
    <!--ElasticSearch保存日志信息-->
    <target name="ElasticSearch" xsi:type="ElasticSearch" ConnectionStringName="ElasticSearchServerAddress"  
            index="userapi-${date:format=yyyy.MM.dd}" documentType="doc" includeAllProperties="true"
                 layout="[${date:format=yyyy-MM-dd HH\:mm\:ss}][${level}] ${logger} ${message} ${exception:format=toString}">
      <field name="MachineName" layout="${machinename}" />
      <field name="Time" layout="${longdate}" />
      <field name="level" layout="${level:uppercase=true}" />
      <field name="logger" layout=" ${logger}" />
      <field name="message" layout=" ${message}" />
      <field name="exception" layout=" ${exception:format=toString}" />
      <field name="processid" layout=" ${processid}" />
      <field name="threadname" layout=" ${threadname}" />
      <field name="stacktrace" layout=" ${stacktrace}" />
      <field name="Properties" layout="${machinename} ${longdate} ${level:uppercase=true} ${logger} ${message} ${exception}|${processid}|${stacktrace}|${threadname}" />
    </target>
  </targets>
  <rules>
    <logger name="*" minlevel="INFO" writeTo="ElasticSearch" />
  </rules>
</nlog>