C#-Log4net 封装log类并自定义log存放路径

引用dll : log4net.dll

接口类：ILogger.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace HCCD.Base.Comm.NewLogger
{/// <summary>/// 日志接口/// </summary>public interface ILogger{/// <summary>/// 调试日志输出/// </summary>/// <param name="msg">输出内容</param>void Debug(string msg);/// <summary>/// 调试日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>void Debug(string msg, Exception ex);/// <summary>/// 信息日志输出/// </summary>/// <param name="msg">输出内容</param>void Info(string msg);/// <summary>/// 信息日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>void Info(string msg, Exception ex);/// <summary>/// 警告日志输出/// </summary>/// <param name="msg">输出内容</param>void Warn(string msg);/// <summary>/// 警告日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>void Warn(string msg, Exception ex);/// <summary>/// 错误日志输出/// </summary>/// <param name="msg">输出内容</param>void Error(string msg);/// <summary>/// 错误日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>void Error(string msg, Exception ex);/// <summary>/// 致命日志输出/// </summary>/// <param name="msg">输出内容</param>void Fatal(string msg);/// <summary>/// 致命日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>void Fatal(string msg, Exception ex);}
}

接口实现类：LogHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net;
using log4net.Appender;
using System.IO;
using log4net.Config;namespace HCCD.Base.Comm.NewLogger
{/** Author: Long* Date: 2019-09* Detail: Log4net日志类*//// <summary>/// Log4net日志类/// </summary>public class LogHelper : ILogger{private Dictionary<string, ILog> LogDic = new Dictionary<string, ILog>();private object _islock = new object();private string fileName = string.Empty;/// <summary>/// 日志调用初始化/// </summary>/// <param name="fileSavePath">日志文件保存路径[若路径为空，则默认程序根目录Logger文件夹;]</param>/// <param name="fileName">日志文件名[若文件名为空，则默认文件名：Default]</param>public LogHelper(string fileSavePath, string fileName,string logSuffix = ".log"){try{Init();if (string.IsNullOrEmpty(fileSavePath))fileSavePath = "Logger";if (string.IsNullOrEmpty(fileName))fileName = "Default";this.fileName = fileName;var repository = LogManager.GetRepository();var appenders = repository.GetAppenders();if (appenders.Length == 0) return;var targetApder = appenders.First(p => p.Name == "FileInfoAppender") as RollingFileAppender;targetApder.File = Path.Combine(fileSavePath, this.fileName + logSuffix);targetApder.ActivateOptions();}catch (Exception ex) { }}/// <summary>/// 缓存日志对象/// </summary>/// <param name="name"></param>/// <returns></returns>private ILog GetLog(string name){try{if (LogDic == null){LogDic = new Dictionary<string, ILog>();}lock (_islock){if (!LogDic.ContainsKey(name)){LogDic.Add(name, LogManager.GetLogger(name));}}return LogDic[name];}catch{return LogManager.GetLogger("Default");}}/// <summary>/// 日志记录初始化/// </summary>private void Init(){var file = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Log4net.config"));XmlConfigurator.Configure(file);}/// <summary>/// 调试日志输出/// </summary>/// <param name="msg">输出内容</param>public void Debug(string msg){var log = GetLog(this.fileName);if (log == null){return;}log.Debug(msg);}/// <summary>/// 调试日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>public void Debug(string msg, Exception ex){var log = GetLog(this.fileName);if (log == null){return;}log.Debug(msg, ex);}/// <summary>/// 信息日志输出/// </summary>/// <param name="msg">输出内容</param>public void Info(string msg){var log = GetLog(this.fileName);if (log == null){return;}log.Info(msg);}/// <summary>/// 信息日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>public void Info(string msg, Exception ex){var log = GetLog(this.fileName);if (log == null){return;}log.Info(msg, ex);}/// <summary>/// 警告日志输出/// </summary>/// <param name="msg">输出内容</param>public void Warn(string msg){var log = GetLog(this.fileName);if (log == null){return;}log.Warn(msg);}/// <summary>/// 警告日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>public void Warn(string msg, Exception ex){var log = GetLog(this.fileName);if (log == null){return;}log.Warn(msg, ex);}/// <summary>/// 错误日志输出/// </summary>/// <param name="msg">输出内容</param>public void Error(string msg){var log = GetLog(this.fileName);if (log == null){return;}log.Error(msg);}/// <summary>/// 错误日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>public void Error(string msg, Exception ex){var log = GetLog(this.fileName);if (log == null){return;}log.Error(msg, ex);}/// <summary>/// 致命日志输出/// </summary>/// <param name="msg">输出内容</param>public void Fatal(string msg){var log = GetLog(this.fileName);if (log == null){return;}log.Fatal(msg);}/// <summary>/// 致命日志输出/// </summary>/// <param name="msg">输出内容</param>/// <param name="ex">输出异常</param>public void Fatal(string msg, Exception ex){var log = GetLog(this.fileName);if (log == null){return;}log.Fatal(msg, ex);}}
}

配置类：Log4net.config

<?xml version="1.0"?>
<configuration><configSections><section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/></configSections><!--站点日志配置部分--><log4net><!-- OFF, FATAL, ERROR, WARN, INFO, DEBUG, ALL --><!-- Set root logger level to ERROR and its appenders --><root><!--控制级别，由低到高: ALL|DEBUG|INFO|WARN|ERROR|FATAL|OFF--><!--比如定义级别为INFO，则INFO级别向下的级别，比如DEBUG日志将不会被记录--><!--如果没有定义LEVEL的值，则缺省为DEBUG--><level value="ALL"/><appender-ref ref="FileInfoAppender"/></root><appender name="FileInfoAppender" type="log4net.Appender.RollingFileAppender"><!--多线程时采用最小锁定--><lockingModel type="log4net.Appender.FileAppender+MinimalLock"/><file/><param name="AppendToFile" value="true"/><param name="RollingStyle" value="Date"/><datePattern value="&quot;.&quot;yyyy-MM-dd&quot;.log&quot;"/><!--固定文件名--><param name="StaticLogFileName" value="true"/><encoding value="utf-8"/><!--日志输出格式--><layout type="log4net.Layout.PatternLayout,log4net"><param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} [%p] %m%n"/></layout></appender></log4net>
</configuration>

调用方式

引用：log4net.dll

HCC.Base.Comm.NewLogger.dll

实现：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using HCC.Base.Comm.NewLogger;namespace ConsoleApplication1
{class Program{static void Main(string[] args){LogHelper log = new LogHelper(@"D:\Logger", "stydy");log.Info("广东省个大三噶的首付打好分单发核辐射的");log.Info("广东省个大三噶的首付打好分单发核辐射的", new Exception("请检查系统异常！这个问题是相当的严重。"));log.Fatal("gdsgdsgdsgdsgdsgds");log.Fatal("gdsgdsgdsgdsgdsgds", new Exception("请检查系统异常！这个问题是相当的严重。"));log.Warn("广东省个大三噶电视柜电视柜");log.Warn("gdsgdsgdsgdsgdsgds", new Exception("请检查系统异常！这个问题是相当的严重。"));log.Debug("cbvcbvfgsfgdsgdsgdsgdsgdsgds");log.Debug("gdsgdsgdsgdsgdsgds", new Exception("请检查系统异常！这个问题是相当的严重。"));log.Error("系统异常");log.Error("系统异常",new Exception("请检查系统异常！这个问题是相当的严重。"));}}
}

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