1.install-package log4net
2.add new config file, its name is log4net.config
3.Right click the log4net.config and set Copy to Output Directory as 'Copy Always'
4.Open AssemblyInfo.cs and append to the end
[assembly:log4net.Config.XmlConfigurator(ConfigFile ="log4net.config")]
5.
private static readonly log4net.ILog logger = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); static void Main(string[] args) { Log4netDemo(); Console.ReadLine(); } static void Log4netDemo() { logger.Info($"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); logger.Error($"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); logger.Debug($"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); logger.Fatal($"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); logger.Warn($"{DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); }
Of course,you can set the file location manually as below
or
<appender name="file" type="log4net.Appender.RollingFileAppender"> <file type="log4net.Util.PatternString" value="Logs\\Common\\%date{yyyy-MM-dd-HH-mm-ss-ffff}.log" /> <appendToFile value="true" /> <rollingStyle value="Size" /> <maxSizeRollBackups value="5" /> <maximumFileSize value="10MB" /> <staticLogFileName value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %level %logger - %message%newline" /> layout> appender>