1. 添加Log4net引用
2. 添加配置文件
Log.config
<?xml version="1.0" encoding="utf-8"?><configuration> ?<log4net> ???<logger name="Log4NetTest"> ?????<level value="ERROR"/> ?????<appender-ref ref="Log4NetTestAppender" /> ???????<!--Log4NetTestAppender和下面进行对应--> ???</logger> ???<logger name="RYJ.Crm.Quartz"> ?????<level value="ERROR"/> ?????<appender-ref ref="QuartzAppender" /> ???</logger> ???<logger name="RYJ.Crm.Services"> ?????<level value="ERROR"/> ?????<appender-ref ref="ServiceAppender" /> ???</logger> ???<logger name="RYJ.Crm.ExternalService"> ?????<level value="ERROR"/> ?????<appender-ref ref="ExternalServiceAppender" /> ???</logger> ???<logger name="RYJ.Crm.HeartBeat"> ?????<level value="DEBUG"/> ?????<appender-ref ref="HeartBeatAppender" /> ???</logger> ???<logger name="RYJ.Crm.System"> ?????<level value="ERROR"/> ?????<appender-ref ref="SystemAppender" /> ???</logger> ???<logger name="RYJ.Crm.UrlFilter"> ?????<level value="DEBUG"/> ?????<appender-ref ref="UrlFilterAppender" /> ???</logger> ???<logger name="NHibernate"> ?????<level value="OFF"/> ?????<appender-ref ref="NHibernateAppender" /> ???</logger> ???<logger name="RYJ.Return"> ?????<level value="DEBUG"/> ?????<appender-ref ref="ReturnAppender" /> ???</logger> ???<logger name="RYJ.Crm.Event"> ?????<level value="DEBUG"/> ?????<appender-ref ref="EventAppender" /> ???</logger> ???<logger name="RYJ.Crm"> ?????<level value="ERROR"/> ?????<appender-ref ref="EmailAppender" /> ???</logger> ???<!--返回值异常日志记录--> ???<appender name="Log4NetTestAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/Log4NetTest/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--返回值异常日志记录--> ???<appender name="ReturnAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/Return/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--事件异常日志记录--> ???<appender name="EventAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/Event/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--系统异常日志记录--> ???<appender name="SystemAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/System/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--调度日志记录--> ???<appender name="QuartzAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/Quartz/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--Service日志记录--> ???<appender name="ServiceAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/Service/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--调用外部服务日志记录--> ???<appender name="ExternalServiceAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/ExternalService/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--HeartBeat日志记录--> ???<appender name="HeartBeatAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/HeartBeat/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--UrlFilter日志记录--> ???<appender name="UrlFilterAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/UrlFilter/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--NHibernate日志记录--> ???<appender name="NHibernateAppender" type="log4net.Appender.RollingFileAppender,log4net" > ?????<param name="File" value="Logs/NHibernate/" /> ?????<param name="AppendToFile" value="true" /> ?????<param name="RollingStyle" value="Date" /> ?????<param name="DatePattern" value="yyyy-MM-dd".txt"" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ???<!--邮箱设置--> ???<appender name="EmailAppender" type="log4net.Appender.SmtpAppender"> ?????<!-- SMTP 验证方式 --> ?????<authentication value="Basic" /> ?????<to value="" /> ?????<from value="service@daishu360.com" /> ?????<username value="service@daishu360.com" /> ?????<password value="DSpuhui360.cn" /> ?????<subject value="【本地环境】CRM后台API错误异常" /> ?????<!--邮件服务端--> ?????<smtpHost value="smtp.exmail.qq.com"/> ?????<bufferSize value="10240" /> ?????<lossy value="true" /> ?????<!--这里我设置的是Error ，会接收（FATAL和ERROR日志）你可以根据自己的需要设置Log4net支持多种级别的日志。优先级从高到低依次排列如下:FATAL > ERROR > WARN > INFO > DEBUG--> ?????<evaluator type="log4net.Core.LevelEvaluator"> ???????<threshold value="OFF"/> ?????</evaluator> ?????<!--输出格式--> ?????<layout type="log4net.Layout.PatternLayout,log4net"> ???????<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" /> ???????<param name="Header" value=" ----------------------header-------------------------- " /> ???????<param name="Footer" value=" ----------------------footer-------------------------- " /> ?????</layout> ???</appender> ?</log4net></configuration>
Web.config
<!--log4net日志配置文件--> ???<add key="log4net" value="config/log4net/log.config" />
3. 注册lognet
?protected void Application_Start() ???????{ ?????????????????????//注册lognet ???????????var log4NetFileName = FilePath(ConfigurationManager.AppSettings["log4net"]); ???????????if (File.Exists(log4NetFileName)) ???????????{ ???????????????XmlConfigurator.ConfigureAndWatch(new FileInfo(log4NetFileName)); ???????????} ???????} ???????private static string FilePath(string name) ???????{ ???????????if (string.IsNullOrEmpty(name)) ???????????{ ???????????????return string.Empty; ???????????} ???????????return string.Format("{0}/{1}", AppDomain.CurrentDomain.BaseDirectory.TrimEnd(‘\\‘, ‘/‘), name.TrimStart(‘\\‘, ‘/‘)); ???????}4. 编写Helper
using log4net;using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace Log4NetTest{ ???public static class Log4NetUtility ???{ ???????/// <summary> ???????/// ????写日志 ???????/// </summary> ???????public static void WriteLog(this string message, string name, Log4NetType logType = Log4NetType.Info) ???????{ ???????????var log = GetLog(name); ???????????if (log == null) ???????????{ ???????????????return; ???????????} ???????????if (logType == Log4NetType.Debug) ???????????{ ???????????????log.Debug(message); ???????????????return; ???????????} ???????????if (logType == Log4NetType.Error) ???????????{ ???????????????log.Error(message); ???????????????return; ???????????} ???????????if (logType == Log4NetType.Fatal) ???????????{ ???????????????log.Debug(message); ???????????????return; ???????????} ???????????if (logType == Log4NetType.Info) ???????????{ ???????????????log.Info(message); ???????????????return; ???????????} ???????????log.Warn(message); ???????} ???????/// <summary> ???????/// ????写异常日志 ???????/// </summary> ???????public static void WriteLog(this Exception exception, string name) ???????{ ???????????var log = GetLog(name); ???????????if (log == null) ???????????{ ???????????????return; ???????????} ???????????WriteLog(exception, log); ???????} ???????/// <summary> ???????/// ????写异常日志 ???????/// </summary> ???????private static void WriteLog(Exception exception, ILog log) ???????{ ???????????if (exception == null) ???????????{ ???????????????return; ???????????} ???????????log.Error(exception); ???????????WriteLog(exception.InnerException, log); ???????} ???????/// <summary> ???????/// ????获取日志对象 ???????/// </summary> ???????public static ILog GetLog(string name) ???????{ ???????????var logger = LogManager.GetLogger(name); ???????????return logger; ???????} ???} ???/// <summary> ???/// ????Log4Net类型枚举 ???/// </summary> ???public enum Log4NetType ???{ ???????/// <summary> ???????/// ????字段Debug ???????/// </summary> ???????Debug, ???????/// <summary> ???????/// ????字段Error ???????/// </summary> ???????Error, ???????/// <summary> ???????/// ????字段Info ???????/// </summary> ???????Info, ???????/// <summary> ???????/// ????字段Fatal ???????/// </summary> ???????Fatal, ???????/// <summary> ???????/// ????字段Warn ???????/// </summary> ???????Warn ???} ???/// <summary> ???/// ????类名称：Log4NetName ???/// ????命名空间：DaiShu.Crm.Utility ???/// ????类功能：日志名称 ???/// </summary> ???public class Log4NetName ???{ ???????/// <summary> ???????/// ????字段UrlFilter ???????/// </summary> ????????????public const string Log4NetTest = "Log4NetTest"; ???????/// <summary> ???????/// ????字段UrlFilter ???????/// </summary> ??????????????public const string UrlFilter = "RYJ.Crm.UrlFilter"; ???????/// <summary> ???????/// ????字段System ???????/// </summary> ?????????????public const string System = "RYJ.Crm.System"; ???????/// <summary> ???????/// ????字段Quartz ???????/// </summary> ??????????????public const string Quartz = "RYJ.Crm.Quartz"; ???????/// <summary> ???????/// ????字段Service ???????/// </summary> ??????????????public const string Service = "RYJ.Crm.Services"; ???????/// <summary> ???????/// ????字段ExternalService ???????/// </summary> ????????????public const string ExternalService = "RYJ.Crm.ExternalService"; ???????/// <summary> ???????/// ????字段Return ???????/// </summary> ????????????public const string Return = "RYJ.Return"; ???????/// <summary> ???????/// ????字段HeartBeat ???????/// </summary> ??????????????public const string HeartBeat = "RYJ.Crm.HeartBeat"; ???????/// <summary> ???????/// 字段Event ???????/// </summary> ?????????????public const string Event = "RYJ.Crm.Event"; ???}}调用演示
???????????try ???????????{ ???????????????int n=int.Parse("aaa"); ???????????} ???????????catch (Exception ex) ???????????{ ???????????????ex.WriteLog(Log4NetName.Log4NetTest); ???????????}日志记录~log4.net
原文地址：http://www.cnblogs.com/shuai7boy/p/7623743.html