插件化项目中，遇到这样一个需求，每个插件 或者每个方法 一个日志文件，方便后期错误排查
源码地址： https://github.com/xlb378917466/SharpHttpServerCase.git
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections.Concurrent;
using System.Configuration; using log4net;
using log4net.Appender;
using log4net.Core;
using log4net.Layout;
using log4net.Repository;
using log4net.Repository.Hierarchy;
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace TechSvr.Utils
{
public static class CustomRollingFileLogger
{
private static readonly ConcurrentDictionary<string, ILog> loggerContainer = new ConcurrentDictionary<string, ILog>(); //默认配置
private const int MAX_SIZE_ROLL_BACKUPS = 20;
private const string LAYOUT_PATTERN = "%newline记录时间：%date% 描述：%message%newline";
private const string DATE_PATTERN = "yyyyMMdd";
private const string MAXIMUM_FILE_SIZE = "2MB";
private const string LEVEL = "ALL"; public static ILog GetCustomLogger(string loggerName, string category = null, bool additivity = false)
{
return loggerContainer.GetOrAdd(loggerName, delegate (string name)
{
RollingFileAppender newAppender = GetNewFileApender(loggerName, GetFile(category, loggerName), MAX_SIZE_ROLL_BACKUPS, true, true, MAXIMUM_FILE_SIZE, RollingFileAppender.RollingMode.Composite,
DATE_PATTERN, LAYOUT_PATTERN); log4net.Repository.Hierarchy.Hierarchy repository = (log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository();
Logger logger = repository.LoggerFactory.CreateLogger(repository, loggerName);
logger.Hierarchy = repository;
logger.Parent = repository.Root;
logger.Level = GetLoggerLevel(LEVEL);
logger.Additivity = additivity;
logger.AddAppender(newAppender);
logger.Repository.Configured = true;
return new LogImpl(logger);
});
} //如果没有指定文件路径则在运行路径下建立 Log\{loggerName}.txt
private static string GetFile(string category, string loggerName)
{
if (string.IsNullOrEmpty(category))
{
return string.Format(@"Logs\{0}.txt", loggerName);
}
else
{
return string.Format(@"Logs\{0}\{1}.txt", category, loggerName);
}
} private static Level GetLoggerLevel(string level)
{
if (!string.IsNullOrEmpty(level))
{
switch (level.ToLower().Trim())
{
case "debug":
return Level.Debug; case "info":
return Level.Info; case "warn":
return Level.Warn; case "error":
return Level.Error; case "fatal":
return Level.Fatal;
}
}
return Level.Debug;
} private static RollingFileAppender GetNewFileApender(string appenderName, string file, int maxSizeRollBackups, bool appendToFile = true, bool staticLogFileName = false, string maximumFileSize = "2MB", RollingFileAppender.RollingMode rollingMode = RollingFileAppender.RollingMode.Size, string datePattern = "yyyyMMdd\".txt\"", string layoutPattern = "%d [%t] %-5p %c - %m%n")
{
RollingFileAppender appender = new RollingFileAppender
{
LockingModel = new FileAppender.MinimalLock(),
Name = appenderName,
File = file,
AppendToFile = appendToFile,
MaxSizeRollBackups = maxSizeRollBackups,
MaximumFileSize = maximumFileSize,
StaticLogFileName = staticLogFileName,
RollingStyle = rollingMode,
DatePattern = datePattern
};
PatternLayout layout = new PatternLayout(layoutPattern);
appender.Layout = layout;
layout.ActivateOptions();
appender.ActivateOptions();
return appender;
}
}
}
使用方法
public static Log GetLogger(string filename = "Log")
{
ILog logger = CustomRollingFileLogger.GetCustomLogger(filename, DateTime.Now.ToString("yyyyMMdd")); return new Log(logger);
}