log4net

/*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="DateTime %date{yyyy-MM-dd HH:mm:ss} LogType %-5level %message %newline" />
???</appender>

???<appender name="FileAppender" type="log4net.Appender.FileAppender">
?????<file value="log\" />
?????<appendToFile value="true" />
?????<layout type="log4net.Layout.PatternLayout">
???????<conversionPattern value="[%date] [%-5level] [%logger] [%message] [%exception] %newline" />
?????</layout>
???</appender>

???<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
?????<file value="log\" />
?????<param name="Encoding" value="utf-8" />
?????<appendToFile value="true" />
?????<rollingStyle value="Composite" />
?????<staticLogFileName value="false" />
?????<datePattern value="yyyyMMdd‘.log‘" />
?????<maxSizeRollBackups value="10" />
?????<maximumFileSize value="1MB" />
?????<layout type="log4net.Layout.PatternLayout">
???????<conversionPattern value="DateTime %date{yyyy-MM-dd HH:mm:ss} LogType %-5level %message %newline" />
?????</layout>
???</appender>

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

?</log4net>
</configuration>

/*LogHelper.cs*/

using log4net;
using log4net.Config;
using System;
using System.IO;
using System.Xml;

namespace MingYu.Utility.Log4Net
{
???/// <summary> ?
???/// 日志记录类(记录到文本文件中) ?
???/// </summary> ?
???public static class LogHelper
???{
???????private static readonly string LOG_DIR = "log";
???????private static readonly string LOG_FILE = LOG_DIR + "\\log" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
???????private const string LOG4NET_CONFIG = "Log4Net\\log4net.config";
???????private static string logFormats = "ModuleBig {0} ModuleSmall {1} Filter1 {2} Filter2 {3} Message {4}";
???????static LogHelper()
???????{
???????????try
???????????{
???????????????ConfigureLoad();
???????????}
???????????catch { }
???????}

???????/// <summary> ?
???????/// 返回ILog接口 ?
???????/// </summary> ?
???????private static ILog Log { get; } = LogManager.GetLogger(typeof(LogHelper));

???????/// <summary>
???????/// ?记录debug信息 ?
???????/// </summary>
???????/// <param name="message"></param>
???????/// <param name="e"></param>
???????/// <param name="moduleBig"></param>
???????/// <param name="moduleSmall"></param>
???????/// <param name="filter1"></param>
???????/// <param name="filter2"></param>
???????public static void Error(string message, Exception e, string moduleBig = "Default", string moduleSmall = "Default", string filter1 = "Default", string filter2 = "Default")
???????{
???????????string errorInfo = message;
???????????if (null != e)
???????????{
???????????????errorInfo += ("Message : " + e.Message);
???????????????errorInfo += ("Source : " + e.Source);
???????????????errorInfo += ("StackTrace : " + e.StackTrace);
???????????????errorInfo += ("TargetSite : " + e.TargetSite);
???????????}
???????????if (string.IsNullOrWhiteSpace(errorInfo))
???????????{
???????????????return;
???????????}
???????????Log.Error(string.Format(@logFormats, moduleBig, moduleSmall, filter1, filter2, errorInfo));
???????}

???????/// <summary>
???????///
???????/// </summary>
???????/// <param name="ex"></param>
???????/// <param name="moduleBig"></param>
???????/// <param name="moduleSmall"></param>
???????/// <param name="filter1"></param>
???????/// <param name="filter2"></param>
???????public static void Error(Exception ex, string moduleBig = "Default", string moduleSmall = "Default", string filter1 = "Default", string filter2 = "Default")
???????{
???????????if (null == ex)
???????????{
???????????????return;
???????????}
???????????string errorInfo = "";
???????????errorInfo += ("Msg : " + ex.Message);
???????????errorInfo += ("Source : " + ex.Source);
???????????errorInfo += ("StackTrace : " + ex.StackTrace);
???????????Log.Error(string.Format(@logFormats, moduleBig, moduleSmall, filter1, filter2, errorInfo));
???????}

???????/// <summary>
???????///
???????/// </summary>
???????/// <param name="info"></param>
???????/// <param name="moduleBig"></param>
???????/// <param name="moduleSmall"></param>
???????/// <param name="filter1"></param>
???????/// <param name="filter2"></param>
???????public static void Info(string info, string moduleBig = "Default", string moduleSmall = "Default", string filter1 = "Default", string filter2 = "Default")
???????{
???????????if (string.IsNullOrWhiteSpace(info))
???????????{
???????????????return;
???????????}
???????????Log.Info(string.Format(@logFormats, moduleBig, moduleSmall, filter1, filter2, info));
???????}

???????/// <summary>
???????///
???????/// </summary>
???????/// <param name="info"></param>
???????/// <param name="moduleBig"></param>
???????/// <param name="moduleSmall"></param>
???????/// <param name="filter1"></param>
???????/// <param name="filter2"></param>
???????public static void Warning(string info = "", string moduleBig = "Default", string moduleSmall = "Default", string filter1 = "Default", string filter2 = "Default")
???????{
???????????Log.Warn(string.Format(@logFormats, moduleBig, moduleSmall, filter1, filter2, info));
???????}

???????/// <summary> ?
???????/// 配置log4net环境 ?
???????/// </summary> ?
???????private static void ConfigureLoad()
???????{
???????????var repository = LogManager.CreateRepository(typeof(LogHelper));
???????????var path = AppDomain.CurrentDomain.BaseDirectory;
???????????XmlConfigurator.Configure(repository, new FileInfo(Path.Combine(path,"bin", "Log4Net", "log4net.config")));
???????}
???}
}

log4net

原文地址：https://www.cnblogs.com/zlj-rechio/p/9953699.html