Log4Net 配置

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="log4net"
             type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
  </configSections>
<!--必须在AssemblyInfo类添加配置信息-->
 <!--[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", ConfigFileExtension = "config", Watch = true)]-->
  <log4net>
    <!--默认逻辑-->
    <logger name="DefaultLogger">
      <level value="ALL"/>
      <!--info-warn级别-->
      <appender-ref ref="InfoLoging" />
      <!--error+级别-->
      <appender-ref ref="ErrorLoging" />
    </logger>
    <!--其它逻辑-->
    <logger name="OtherCustomerLogger">
      <level value="ALL"/>
      <!--info-warn级别-->
      <appender-ref ref="OtherInfoLoging" />
      <!--error+级别-->
      <appender-ref ref="OtherErrorLoging" />
    </logger>
    <!--默认逻辑info-warn级别-->
    <appender name="InfoLoging"
              type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogTipMsg.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="INFO"/>
        <LevelMax value="Warn"/>
      </filter>
    </appender>
    <!--默认逻辑Error+级别-->
    <appender name="ErrorLoging"
              type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogErrorMsg.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="ERROR" />
      </filter>
    </appender>
    <!--其它逻辑info-warn级别-->
    <appender name="OtherInfoLoging"
              type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogOtherTipMsg.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="INFO"/>
        <LevelMax value="Warn"/>
      </filter>
    </appender>
   
    <!--==================================================================================-->
    <!--其它逻辑Error+级别-->
    <appender name="OtherErrorLoging"
              type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogOtherErrorLoging.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="ERROR" />
      </filter>
    </appender>
    
  </log4net>
</configuration>

core版本

core中使用log4net与.Net中有所不同,在Startup类中声明一个ILoggerRepository类型

 public static ILoggerRepository repository;

然后再中间件中添加配置

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
     var builder = new ConfigurationBuilder()
               .SetBasePath(env.ContentRootPath)
               .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
               .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
               .AddEnvironmentVariables();
     repository = LogManager.CreateRepository("NETCoreRepository");
     XmlConfigurator.Configure(repository, new FileInfo("log4net.config"));      
}

使用时在控制器中创建Log对象

public class HomeController : Controller
{
        private ILog log = LogManager.GetLogger(Startup.repository.Name, typeof(HomeController));
         public IActionResult Index()
        { 
            log.Info("这是Info信息");
            log.Error("这是Error信息");
            return View();
        }

}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <!-- This section contains the log4net configuration settings -->
  <log4net>
    <!--不同-->
    <root>
      <level value="ALL" />
      <appender-ref ref="DefaultLogger" />
      <appender-ref ref="ErrorLoging" />
    </root>
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout" value="%date [%thread] %-5level %logger - %message%newline" />
    </appender>

    <appender name="FileAppender" type="log4net.Appender.FileAppender">
      <file value="log-file.log" />
      <appendToFile value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
      </layout>
    </appender>

    <appender name="DefaultLogger" type="log4net.Appender.RollingFileAppender">
      type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogTipMsg.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="INFO"/>
        <LevelMax value="Warn"/>
      </filter>
    </appender>
    <!--默认逻辑Error+级别-->
    <appender name="ErrorLoging"
              type="log4net.Appender.RollingFileAppender,log4net" >
      <File value="App_DataLogLogErrorMsg.log" />
      <!--日志以追加形式记录-->
      <param name="AppendToFile" value="true"/>
      <param name="RollingStyle" value="Date"/>
      <!--最大日志文件数量-->
      <param name="MaxSizeRollBackups" value="10"/>
      <!--单个日志文件最大大小-->
      <param name="MaxmumFileSize" value="1MB"/>
      <!--设置日志文件名称生成规则-->
      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.log&quot;"/>
      <!--日志名称是否为静态-->
      <param name="StaticLogFileName" value="false"/>
      <!--布局-->
      <layout type="log4net.Layout.PatternLayout,log4net">
        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
      </layout>
      <!--级别设置-->
      <filter type="log4net.Filter.LevelRangeFilter">
        <LevelMin value="ERROR" />
      </filter>
    </appender>
    <!-- Setup the root category, add the appenders and set the default level -->
  

  </log4net>
</configuration>