NetCore学习（2）-引用log4net

1.在common 和ui 程序集 添加log4net 引用

2.在common中添加loghelper.cs 操作类  以及在ui层添加configs/log4net.config 配置文件

<log4net>
    <!--错误日志-->
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="D:log\LogError\"/>
      <appendToFile value="true"/>
      <rollingStyle value="Date"/>
      <datePattern value="yyyyMMdd'.txt'"/>
      <staticLogFileName value="false"/>
      <param name="MaxSizeRollBackups" value="100"/>
      <layout type="log4net.Layout.PatternLayout">
        <!--每条日志末尾的文字说明-->
        <!--输出格式-->
        <!--样例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info-->
        <conversionPattern value="%newline %n记录时间：%date %n线程ID:[%thread] %n日志级别：  %-5level %n错误描述：%message%newline %n"/>
      </layout>
    </appender>
    <!--Info日志-->
    <appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
      <!--日志路径-->
      <param name="File" value="D:log\LogInfo\" />
      <!--是否是向文件中追加日志-->
      <param name="AppendToFile" value="true" />
      <param name="MaxFileSize" value="10240" />
      <!--log保留天数-->
      <param name="MaxSizeRollBackups" value="100" />
      <!--日志文件名是否是固定不变的-->
      <param name="StaticLogFileName" value="false" />
      <!--日志文件名格式为:2008-08-31.log-->
      <param name="DatePattern" value="yyyyMMdd'.txt'" />
      <!--日志根据日期滚动-->
      <param name="RollingStyle" value="Date" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%newline %n记录时间：%date %n线程ID:[%thread] %n日志级别：  %-5level %n日志描述：%message%newline %n"/>
      </layout>
    </appender>

    <!--监控日志-->
    <appender name="MonitorAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:log\LogMonitor\" />
      <param name="AppendToFile" value="true" />
      <param name="MaxFileSize" value="10240" />
      <param name="MaxSizeRollBackups" value="100" />
      <param name="StaticLogFileName" value="false" />
      <param name="DatePattern" value="yyyyMMdd'.txt'" />
      <param name="RollingStyle" value="Date" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%newline %n记录时间：%date %n线程ID:[%thread] %n日志级别：  %-5level %n跟踪描述：%message%newline %n"/>
      </layout>
    </appender>
    <!--Error日志-->
    <logger name="logerror">
      <level value="ERROR" />
      <appender-ref ref="RollingLogFileAppender" />
    </logger>
    <!--Info日志-->
    <logger name="loginfo">
      <level value="INFO" />
      <appender-ref ref="InfoAppender" />
    </logger>
    <!--监控日志-->
    <logger name="logmonitor">
      <level value="Monitor" />
      <appender-ref ref="MonitorAppender" />
    </logger>
  </log4net>

3.在startup构造函数中 添加log4net的注册

 public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
            //repository = LogManager.CreateRepository("MvcMovieLog4Respository");
            XmlConfigurator.Configure(new System.IO.FileInfo(AppDomain.CurrentDomain.BaseDirectory + "\Configs\log4net.config"));
            
        }