一、使用xml配置

①、NuGet   

②、添加log4net.appconfig

　　

③、设置生成时复制配置文件（在项目的csproj文件添加节点）

         
            
       
        Always
           
        
     

 

③、后端配置

public ILoggerRepository _log=LogManager.CreateRepository("Logger");XmlConfigurator.Configure(_log, new FileInfo($@"{currentDirectory}\log4net.config"));

二、后端代码配置

①、重写配置项（我这里只写了回滚文件）

public class LoggerHelper    {        //重写回滚文件        public static RollingFileAppender ConfigRollFile()        {            string file = $@"{Path.GetDirectoryName(Assembly.GetEntryAssembly().Location)}\Logger\";            RollingFileAppender appender = new RollingFileAppender()            {                AppendToFile = true,                RollingStyle = RollingFileAppender.RollingMode.Composite,                File = file,                Encoding = Encoding.UTF8,                StaticLogFileName = false,                DatePattern = "yyyyMMdd\".log\"",                MaxSizeRollBackups = 10,                MaximumFileSize = "10M",                Layout = new log4net.Layout.DynamicPatternLayout(                    "%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"),            };            appender.ActivateOptions();            return appender;        }    }

②、设置相应配置（我这里覆盖掉回滚文件配置）

ILoggerRepository  _log = LogManager.CreateRepository("Logger");  XmlConfigurator.Configure(_log, new FileInfo($@"{currentDirectory}\log4net.config"));  RollingFileAppender appender = LoggerHelper.ConfigRollFile();  BasicConfigurator.Configure(_log, appender);

 三、获取配置文件属性重新配置

①、修改log4net.config配置文件（其他地方不变）

设置标签

type="log4net.Util.PatternString"、value="%property{FileAddress}/Logger/" ===>log4net 基于log4net.Util.PatternString对属性参数替换

②、后端代码

ILoggerRepository  _log = LogManager.CreateRepository("Logger"); log4net.GlobalContext.Properties["FileAddress"] = currentDirectory; XmlConfigurator.Configure(_log, new FileInfo($@"{currentDirectory}\log4net.config"));