Log4Net.AspNetCore Configuration

 1.引用 Microsoft.Extensions.Logging.Log4Net.AspNetCore

 2. increase the allocation Program.cs

 public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
             .ConfigureLogging((hostingContext, logging) =>
             {
                 logging.AddFilter("System", LogLevel.Warning);
                 logging.AddFilter("Microsoft", LogLevel.Warning);
                 logging.AddLog4Net();
             })
            .UseStartup<Startup>();
    }

3. increase the allocation Startup.cs

public  void Set (IApplicationBuilder app, IHostingEnvironment env ILoggerFactory loggerFactory) 
{ 
      loggerFactory.AddLog4Net (); 
}

4. Increase the profile

<? Xml Version = "1.0" encoding = "UTF-8" ?> 
< Log4net > 
  < appender name = "DebugAppender" of the type = "log4net.Appender.DebugAppender"  > 
    < layout of the type = "log4net.Layout.PatternLayout" > 
      < ConversionPattern value = "% DATE [Thread%]% -5level Logger% -%% NEWLINE Message"  /> 
    </ layout > 
  </ the appender > 
  <-! specified journaling mode, so as to scroll the file (file record) - -> 
  < the appender name = "RollingFile" type="log4net.Appender.RollingFileAppender"> 
    <! - log path -> 
    < File value = "the Log /"  /> 
    <! - whether it is added to the log file -> 
    < appendToFile value = "to true"  /> 
    <! - log retention days -> 
    < param name = "MaxSizeRollBackups" value = "10" /> 
    <-! per file maximum 1M -> 
    < param name = "maximumFileSize" value = "1MB"  /> 
    <-! log by date scroll -> 
    <param name="RollingStyle" value="Date" /> 
    <! - log file name format: logs_20080831.log -> 
    < param name = "DatePattern" value = "& Quot; logs_ & Quot; yyyyMMdd & Quot; .log & Quot;"  /> 
    ! <- log file name is fixed constant -> 
    < param name = "StaticLogFileName" value = "false"  /> 
    <-! layout -> 
    < layout of the type = "log4net.Layout.PatternLayout" > 
      < ConversionPattern value = "% DATE% 5level% . Logger% Method [% Line] - the MESSAGE: NEWLINE%%% Exception Message "  />
    </layout>
  </appender>
  <root>
    <level value="ALL"/>
    <appender-ref ref="DebugAppender" />
    <appender-ref ref="RollingFile" />
  </root>
</log4net>