.NET Core使用log4Net记录日志

 1 <?xml version="1.0" encoding="utf-8" ?> 2 <configuration> 3 ??<!-- This section contains the log4net configuration settings --> 4 ??<log4net> 5 ????<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"> 6 ??????<layout type="log4net.Layout.PatternLayout" value="%date [%thread] %-5level %logger - %message%newline" /> 7 ????</appender> 8 ?9 ????<appender name="FileAppender" type="log4net.Appender.FileAppender">10 ??????<file value="log-file.log" />11 ??????<appendToFile value="true" />12 ??????<layout type="log4net.Layout.PatternLayout">13 ????????<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />14 ??????</layout>15 ????</appender>16 17 ????<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">18 ??????<file value="logfile/" /> ??//指定日志文件保存的目录19 ??????<appendToFile value="true" />20 ??????<rollingStyle value="Composite" />21 ??????<staticLogFileName value="false" />22 ??????<datePattern value="yyyyMMdd‘.log‘" />23 ??????<maxSizeRollBackups value="10" />24 ??????<maximumFileSize value="1MB" />25 ??????<layout type="log4net.Layout.PatternLayout">26 ????????<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />27 ??????</layout>28 ????</appender>29 30 ????<!-- Setup the root category, add the appenders and set the default level -->31 ????<root>32 ??????<level value="ALL" />33 ??????<appender-ref ref="ConsoleAppender" />34 ??????<appender-ref ref="FileAppender" />35 ??????<appender-ref ref="RollingLogFileAppender" />36 ????</root>37 38 ??</log4net>39 </configuration>

3.在StartUp.cs中配置log4Net

 1 ????????//为StartUp.cs添加属性 2 ????????public static ILoggerRepository repository { get; set; } 3 ?4 ????????public Startup(IConfiguration configuration, IHostingEnvironment env) 5 ????????{ 6 ????????????Configuration = configuration; 7 ????????????//log4net 8 ????????????repository = LogManager.CreateRepository("NETCoreRepository"); 9 ????????????//指定配置文件10 ????????????XmlConfigurator.Configure(repository, new FileInfo("log4net.config"));11 12 ????????}

4.在程序中中使用log4Net写日志

下面是注入到控制器中的示例

 1 ????public class HomeController : Controller 2 ????{ 3 ????????//log4Net 4 ????????private ILog log; 5 ????????public UploadFilesController(IHostingEnvironment hostingEnv) 6 ????????{ 7 ????????????//log4Net 8 ????????????this.log = LogManager.GetLogger(Startup.repository.Name, typeof(HomeController)); 9 ????????}10 ????????public IActionResult Index()11 ????????{12 ????????????var name = message.Name;13 ????????????var age = message.Age;14 ????????????log.Error("error message");15 ????????????return View();16 ????????}17 }