netcore中使用log4net日志

第一、控制台程序中使用log4net 

static void Main(string[] args)
        {
            ILoggerRepository repository = LoggerManager.CreateRepository("NETCoreRepository");
            //BasicConfigurator.Configure(repository);//仅用于控制台日志
            XmlConfigurator.Configure(repository, new FileInfo("log4net.config"));//文件日志

            ILog log = LogManager.GetLogger(repository.Name, "NETCorelog4net");
            log.Info("lance test");
            log.Error("lance test error");
            Console.WriteLine("Hello World!");
            Console.Read();
        }

　　log4net.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <!-- This section contains the log4net configuration settings -->
    <log4net>
        <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="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">

            <file value="log\\"/>
            <appendToFile value="true" />
            <rollingStyle value="Composite" />
            <staticLogFileName value="false" />
            <datePattern value="yyyy-MM-dd'.log'"/>
            <maxSizeRollBackups value="10" />
            <maximumFileSize value="1MB" />
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
            </layout>
        </appender>

        <!-- Setup the root category, add the appenders and set the default level -->
        <root>
            <level value="ALL" />
            <appender-ref ref="ConsoleAppender" />
            <appender-ref ref="FileAppender" />
            <appender-ref ref="RollingLogFileAppender" />
        </root>

    </log4net>
</configuration>

　　注意log4net.confg  右键设置 Copy to Output directory ：copy always

第二、netcore WebApi中使用

在 StartUp.cs中增加

 public static ILoggerRepository repository { get; set; }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            repository = LoggerManager.CreateRepository("NetCoreRepository");
            log4net.Config.XmlConfigurator.Configure(repository, new FileInfo("log4net.config"));

            app.UseMvc();
        }

　　在站点根目录下增加log4net.config ，同上面一样

在controller中的使用

 private ILog log = LogManager.GetLogger(Startup.repository.Name, typeof(ValuesController));
        // GET api/values
        [HttpGet]
        public IEnumerable<string> Get()
        {
            log.Info("get value controller");

            return new string[] { "value1", "value2" };
        }