.NET Core整合log4net以及全局异常捕获实现

<?xml version="1.0" encoding="utf-8" ?><configuration> ?<configSections> ???<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/> ?</configSections> ??<log4net> ???<!--定义输出到一个固定文件中--> ???<appender name="FileAppender" type="log4net.Appender.FileAppender"> ?????<file value="log/log.txt" /> ?????<appendToFile value="true" /> ?????<layout type="log4net.Layout.PatternLayout"> ???????<!--每条日志末尾的文字说明--> ???????<header value="&#13;&#10;[============================应用程序日志开始============================ ]&#13;&#10;" /> ???????<footer value="&#13;&#10;[ ===========================应用程序日志结束=============================]&#13;&#10;" /> ???????<!--输出格式--> ???????<!--样例：2008-03-26 13:42:32,111 [10] INFO ?Log4NetDemo.MainClass [(null)] - info--> ???????<conversionPattern value="%newline%newline记录时间：%date 线程ID:[%thread] 日志级别：%-5level 类名或程序集名：%logger ?%newline ??property:[%property{NDC}] - 描述：%message%newline" /> ?????</layout> ???</appender> ???????<!--定义输出到文件中,循环创建日志文件，以日期命名--> ???<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender"> ?????<!--定义文件存放位置 ?????保存当前日期的日志,当第二天新日志产生时会把当前日期的日志保存备份--> ?????<file value="log/log" /> ?????<!--禁止覆盖原有文件,true：覆盖原有文件--> ?????<appendToFile value="false" /> ?????<rollingStyle value="Date" /> ?????<!--以天为单位进行日志滚动,保存过去日期的日志--> ?????<datePattern value="yyyy-MM-dd-HHmm&quot;.txt&quot;" /> ?????<layout type="log4net.Layout.PatternLayout"> ???????<!--每条日志末尾的文字说明--> ???????<header value="&#13;&#10;[============================应用程序日志开始============================ ]&#13;&#10;" /> ???????<footer value="&#13;&#10;[ ===========================应用程序日志结束=============================]&#13;&#10;" /> ???????<!--输出格式--> ???????<!--样例：2008-03-26 13:42:32,111 [10] INFO ?Log4NetDemo.MainClass [(null)] - info--> ???????<conversionPattern value="%newline%newline记录时间：%date 线程ID:[%thread] 日志级别：%-5level 类名或程序集名：%logger ?%newline ??property:[%property{NDC}] - 描述：%message%newline" /> ?????</layout> ???</appender> ???????<!--定义输出到控制台命令行中--> ???<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"> ?????<layout type="log4net.Layout.PatternLayout"> ???????<!--输出格式--> ???????<conversionPattern value="%newline时间：%date 线程ID：[%thread] 日志级别：%-5level 类名或程序集名：%logger ?%newline property:[%property{NDC}] - 描述：%message%newline" /> ?????</layout> ???</appender> ???????<!--定义以不同颜色输出到控制台--> ???<appender name="ManagedColoredConsoleAppender" type="log4net.Appender.ManagedColoredConsoleAppender"> ?????<mapping> ???????<level value="ERROR" /> ???????<foreColor value="DarkRed" /> ?????</mapping> ?????<mapping> ???????<level value="WARN" /> ???????<foreColor value="Yellow" /> ?????</mapping> ?????<mapping> ???????<level value="INFO" /> ???????<foreColor value="DarkGray" /> ?????</mapping> ?????<mapping> ???????<level value="DEBUG" /> ???????<foreColor value="DarkGreen" /> ?????</mapping> ??????<layout type="log4net.Layout.PatternLayout"> ???????<!--输出格式--> ???????<conversionPattern value="%newline时间：%date 线程ID：[%thread] 日志级别：%-5level 类名或程序集名：%logger ?%newline property:[%property{NDC}] - 描述：%message%newline" /> ?????</layout> ???</appender> ???????<!--定义输出到数据库中，这里举例输出到Access数据库中，数据库为log4net.mdb（可以自定义路径）--> ???<appender name="AdoNetAppender_Access" type="log4net.Appender.AdoNetAppender"> ?????<connectionString value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=logDB/log4net.mdb" /> ?????<commandText value="INSERT INTO LogDetails ([LogDate],[Thread],[Level],[Logger],[Message]) VALUES (@logDate, @thread, @logLevel, @logger,@message)" /> ?????<!--定义各个参数--> ?????<parameter> ???????<parameterName value="@logDate" /> ???????<dbType value="String" /> ???????<size value="240" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%date" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@thread" /> ???????<dbType value="String" /> ???????<size value="240" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%thread" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@logLevel" /> ???????<dbType value="String" /> ???????<size value="240" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%level" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@logger" /> ???????<dbType value="String" /> ???????<size value="240" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%logger" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@message" /> ???????<dbType value="String" /> ???????<size value="240" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%message" /> ???????</layout> ?????</parameter> ???</appender> ???<!--定义日志的输出媒介，下面定义日志以四种方式输出。也可以下面的按照一种类型或其他类型输出。--> ????<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"/> ?????<!--文件形式记录日志--> ?????<appender-ref ref="RollingFileAppender" /> ?????<!--控制台控制显示日志--> ?????<!--<appender-ref ref="ConsoleAppender" />--> ?????<!--控制台以不同颜色显示日志--> ?????<appender-ref ref="ManagedColoredConsoleAppender" /> ?????<!--定义输出到数据库中。 如果不启用相应的日志记录，可以通过这种方式注释掉--> ?????<!--<appender-ref ref="AdoNetAppender_Access" />--> ???</root> ?</log4net></configuration>

using System;using log4net;using log4net.Repository; namespace wxApp.Code.Creater.Api.Common{ ???public static class Logger ???{ ???????private static ILoggerRepository loggerRepository; ????????public static ILoggerRepository LoggerRepository { get; private set; } ???????public static ILog Log { get; private set; } ????????/// <summary> ???????/// 静态构造函数，程序启动时自动执行 ???????/// </summary> ???????//static Logger() ???????//{ ???????// ???LoggerRepository = CreateLoggerRepository(); ???????// ???LoadLog4NetConfig(); ???????//} ????????/// <summary> ???????/// 初始化日志 ???????/// </summary> ???????/// <returns></returns> ???????public static void LoadLogger() ???????{ ???????????LoggerRepository = CreateLoggerRepository(); ???????????LoadLog4NetConfig(); ???????} ????????/// <summary> ???????/// 创建日志仓储实例 ???????/// </summary> ???????/// <returns></returns> ???????private static ILoggerRepository CreateLoggerRepository() ???????{ ???????????loggerRepository = loggerRepository ?? LogManager.CreateRepository("GlobalExceptionHandler"); // 单例 ???????????return loggerRepository; ???????} ???????????????/// <summary> ???????/// 加载log4net配置 ???????/// </summary> ???????private static void LoadLog4NetConfig() ???????{ ???????????// 配置log4net ???????????log4net.Config.XmlConfigurator.Configure(loggerRepository, new System.IO.FileInfo(System.IO.Directory.GetCurrentDirectory() + "/Config/log4net.config")); ????????????// 创建log实例 ???????????Log = LogManager.GetLogger(loggerRepository.Name, AppDomain.CurrentDomain.FriendlyName); ????????????Log.Info("已加载日志配置"); ???????} ???}}

using Microsoft.AspNetCore.Mvc.Filters; namespace wxApp.Code.Creater.Api.Common{ ???public class HttpGlobalExceptionFilter : IExceptionFilter ???{ ???????public void OnException(ExceptionContext context) ???????{ ???????????Logger.Log.Error("全局异常过滤器捕获的异常：", context.Exception); ???????} ???}}

 ???????????// 配置日志 ???????????services.AddLogging(logConfig => { ???????????????//log4net.Config.XmlConfigurator.Configure(Common.Logger.LoggerRepository); ???????????????Common.Logger.LoadLogger(); ???????????});

 ???????????// 添加全局异常捕获 ???????????services.AddMvc(option => ???????????{ ???????????????option.Filters.Add<Common.HttpGlobalExceptionFilter>(); ???????????});