log4net 组件简易封装

using log4net;using log4net.Appender;using log4net.Config;using log4net.Core;using log4net.Layout;using System;using System.IO;using System.Web;namespace Utility{ ???/// <summary> ???/// 简单封装log4net基本功能 ???/// 1 无论log4net.config文件是否存在，都可以正常使用log4net.dll记录日志 ???/// 2 支持两种类型的logger：SystemLogger和DatabaseLogger，还可以添加更多的logger对象 ???/// </summary> ???public class Logger ???{ ???????private static readonly Type declaringType = typeof(Logger); ???????protected static ILog SystemLog ???????{ ???????????get; ???????????private set; ???????} ???????protected static ILog DatabaseLog ???????{ ???????????get; ???????????private set; ???????} ???????static Logger() ???????{ ???????????const string fileName = "log4net.config"; ???????????string basePath = HttpContext.Current != null ???????????????? AppDomain.CurrentDomain.SetupInformation.PrivateBinPath ???????????????: AppDomain.CurrentDomain.BaseDirectory; ???????????string filePath = Path.Combine(basePath, fileName); ???????????if (File.Exists(filePath)) ???????????{ ???????????????XmlConfigurator.ConfigureAndWatch(new FileInfo(filePath)); ???????????} ???????????else ???????????{ ???????????????//默认设置（log4net 按装饰器模式实现，支持：ConsoleLog、FileLog、EventLog等不同方式） ???????????????RollingFileAppender appender = new RollingFileAppender ???????????????{ ???????????????????Name = "root", ???????????????????File = "logs\\log.txt", ???????????????????AppendToFile = true, ???????????????????RollingStyle = RollingFileAppender.RollingMode.Composite, //日期发生变化或日志文件大小超过10M，自动生成新的日志文件 ???????????????????DatePattern = "yyyyMMdd\".txt\"", //如果日期发了变化，自动保存历史日志文件，并生成新的日志文件 ???????????????????MaxSizeRollBackups = 5, //保留几个历史日志文件 ???????????????????Layout = new PatternLayout("[%d{yyyy-MM-dd HH:mm:ss.fff}] [%t] %-5level %logger property:[%property{NDC}] - %message%newline") //%m表示日志内容 ???????????????}; ???????????????BasicConfigurator.Configure(appender); ???????????????appender.ActivateOptions(); ???????????} ???????????//为log4net添加不同类型的参数logger，用于配置选择哪种方式输出日志 ???????????SystemLog = LogManager.GetLogger("SystemLogger"); //返回或新建一个命名的logger对象 ???????????DatabaseLog = LogManager.GetLogger("DatabaseLogger"); ???????} ???????private static void WriteLog(ILog log, Level level, Exception exception, string message) ???????{ ???????????log.Logger.Log(declaringType, level, message, exception); ???????} ???????#region 装饰器>>系统日志 ???????public static void Debug(string message, Exception exception = null) ???????{ ???????????WriteLog(SystemLog, Level.Debug, exception, message); ???????} ???????public static void Info(string message, Exception exception = null) ???????{ ???????????WriteLog(SystemLog, Level.Info, exception, message); ???????} ???????public static void Warn(string message, Exception exception = null) ???????{ ???????????WriteLog(SystemLog, Level.Warn, exception, message); ???????} ???????public static void Error(string message, Exception exception = null) ???????{ ???????????WriteLog(SystemLog, Level.Error, exception, message); ???????} ???????public static void Fatal(string message, Exception exception = null) ???????{ ???????????WriteLog(SystemLog, Level.Fatal, exception, message); ???????} ???????#endregion ???????#region 装饰器>>数据库日志 ??????????????public static void DatabaseInfo(string message, Exception exception = null) ???????{ ???????????WriteLog(DatabaseLog, Level.Info, exception, message); ???????} ???????public static void DatabaseWarn(string message, Exception exception = null) ???????{ ???????????WriteLog(DatabaseLog, Level.Warn, exception, message); ???????} ???????public static void DatabaseError(string message, Exception exception = null) ???????{ ???????????WriteLog(DatabaseLog, Level.Error, exception, message); ???????} ???????#endregion ???}}