1 引用log4net.dll
2 在web的根目录下添加config配置文件 log4net.config
3 配置 log4net.config
<?xml version="1.0" encoding="utf-8"?><configuration> ?<configSections> ???<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4Net" /> ?</configSections> ?<log4net debug="true"> ???<root> ?????<level value="ALL" /> ?????<appender-ref ref="LogFileAppenderByDate" /> ?????<appender-ref ref="AdoNetAppender" /> ???</root> ???<logger name="WebLogger"> ?????<!--配置日志的级别，低于此级别的就不写到日志里面去--> ?????<level value="DEBUG" /> ???</logger> ???<!--按日期分割日志文件 一天一个--> ???<appender name="LogFileAppenderByDate" type="log4net.Appender.RollingFileAppender,log4net" > ?????<!--是否续写--> ?????<param name="AppendToFile" value="true" /> ?????<!--最小锁定模型以允许多个进程可以写入同一个文件--> ?????<param name="LockingModel" value="log4net.Appender.FileAppender.MinimalLock" /> ?????<param name="StaticLogFileName" value="true" /> ?????<!--保存路径--> ?????<param name="File" value="Log\\" /> ?????<param name="DatePattern" value="yyyy-MM-dd.LOG" /> ?????<param name="StaticLogFileName" value="false" /> ?????<param name="RollingStyle" value="Date" /> ?????<layout type="log4net.Layout.PatternLayout"> ???????<param name="ConversionPattern" value="%d,%c%nLog:%m%n-----------------------------------------%n%n" /> ?????</layout> ?????<filter type="log4net.Filter.LevelRangeFilter"> ???????<param name="LevelMin" value="DEBUG" /> ???????<param name="LevelMax" value="DEBUG" /> ?????</filter> ???</appender> ???<!--按日志容量分割日志文件 10KB一个--> ???<appender name="LogFileAppenderBySize" type="log4net.Appender.RollingFileAppender" > ?????<!--是否续写--> ?????<param name="AppendToFile" value="true" /> ?????<!--最小锁定模型以允许多个进程可以写入同一个文件--> ?????<param name="LockingModel" value="log4net.Appender.FileAppender.MinimalLock" /> ?????<param name="StaticLogFileName" value="true" /> ?????<!--按照文件的大小进行变换日志文件--> ?????<param name="RollingStyle" value="Size" /> ?????<param name="File" value="log.txt" /> ?????<!--单个文件最大数量 好像只有在 按Size分割时有效--> ?????<param name="MaximumFileSize" value="200KB"/> ?????<!--保留的log文件数量 超过此数量后 自动删除之前的 ??好像只有在 按Size分割时有效--> ?????<param name="MaxSizeRollBackups" value="2" /> ?????<param name="StaticLogFileName" value="false" /> ?????<layout type="log4net.Layout.PatternLayout"> ???????<param name="ConversionPattern" value="发生时间:%d %n事件级别:%level %n相关类名:%c%n程序文件:%F 第%L行%n日志内容:%m%n-----------------------------------------%n%n" /> ?????</layout> ???</appender> ???<!--记录日志到数据库--> ???<appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender"> ?????<bufferSize value="1" /> ?????<!--缓冲大小--> ?????<connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /> ?????<connectionString value="Data Source=.\SQLEXPRESS;Initial Catalog=CVDS;User ID=sa;Password=sasa" /> ?????<commandText value="INSERT INTO Log([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception)" /> ?????<parameter> ???????<parameterName value="@log_date" /> ???????<dbType value="DateTime" /> ???????<layout type="log4net.Layout.RawTimeStampLayout" /> ?????</parameter> ?????<parameter> ???????<parameterName value="@thread" /> ???????<dbType value="String" /> ???????<size value="255" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%thread" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@log_level" /> ???????<dbType value="String" /> ???????<size value="50" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%level" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@logger" /> ???????<dbType value="String" /> ???????<size value="255" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%logger" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@message" /> ???????<dbType value="String" /> ???????<size value="4000" /> ???????<layout type="log4net.Layout.PatternLayout"> ?????????<conversionPattern value="%message" /> ???????</layout> ?????</parameter> ?????<parameter> ???????<parameterName value="@exception" /> ???????<dbType value="String" /> ???????<size value="2000" /> ???????<layout type="log4net.Layout.ExceptionLayout" /> ?????</parameter> ???</appender> ???<!-- 控制台前台显示日志 --> ???<appender name="ColoredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender"> ?????<mapping> ???????<level value="ERROR" /> ???????<foreColor value="Red, HighIntensity" /> ?????</mapping> ?????<mapping> ???????<level value="Info" /> ???????<foreColor value="Green" /> ?????</mapping> ?????<layout type="log4net.Layout.PatternLayout"> ???????<conversionPattern value="%n%date{HH:mm:ss,fff} [%-5level] %m" /> ?????</layout> ?????<filter type="log4net.Filter.LevelRangeFilter"> ???????<param name="LevelMin" value="Info" /> ???????<param name="LevelMax" value="Fatal" /> ?????</filter> ???</appender> ?</log4net></configuration>4 配置Global.asax
???????protected void Application_Start() ???????{ ???????????AreaRegistration.RegisterAllAreas(); ???????????WebApiConfig.Register(GlobalConfiguration.Configuration); ???????????FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); ???????????RouteConfig.RegisterRoutes(RouteTable.Routes); ???????????BundleConfig.RegisterBundles(BundleTable.Bundles); ???????????log4net.Config.XmlConfigurator.ConfigureAndWatch(new FileInfo(Server.MapPath("log4net.config")));//log4net ???????}5 在AssemblyInfo.cs中添加
6 调用
??public class LogHelper ???{ ???????//定义信息的二次处理 ???????public static event Action<string> OutputMessage; ???????private static StackFrame sf = new StackTrace().GetFrame(2);//0为本身方法，1为调用方法,2为上一级调用方法 ???????private static string methodName = sf.GetMethod().Name;//方法名 ???????private static string calssName = sf.GetMethod().ReflectedType.Name;//类名 ???????//ILog对象 ???????private static readonly ILog log = LogManager.GetLogger(sf.GetMethod().DeclaringType); ???????#region 定义信息二次处理方式 ???????private static void HandMessage(object Msg) ???????{ ???????????if (OutputMessage != null) ???????????{ ???????????????OutputMessage(Msg.ToString()); ???????????} ???????} ???????private static void HandMessage(object Msg, Exception ex) ???????{ ???????????if (OutputMessage != null) ???????????{ ???????????????OutputMessage(string.Format("{0}:{1}", Msg.ToString(), ex.ToString())); ???????????} ???????} ???????private static void HandMessage(string format, params object[] args) ???????{ ???????????if (OutputMessage != null) ???????????{ ???????????????OutputMessage(string.Format(format, args)); ???????????} ???????} ???????#endregion ???????#region 封装Log4net ???????public static void Debug(object message) ???????{ ???????????HandMessage(message); ???????????if (log.IsDebugEnabled) ???????????{ ???????????????log.Debug(message); ???????????} ???????} ???????public static void Debug(object message, Exception ex) ???????{ ???????????HandMessage(message, ex); ???????????if (log.IsDebugEnabled) ???????????{ ???????????????log.Debug(message, ex); ???????????} ???????} ???????public static void DebugFormat(string format, params object[] args) ???????{ ???????????HandMessage(format, args); ???????????if (log.IsDebugEnabled) ???????????{ ???????????????log.DebugFormat(format, args); ???????????} ???????} ???????//-----以下方法暂时不用，注释掉------ ???????/* ???????public static void Error(object message) ???????{ ???????????HandMessage(message); ???????????if (log.IsErrorEnabled) ???????????{ ???????????????log.Error(message); ???????????} ???????} ???????public static void Error(object message, Exception ex) ???????{ ???????????HandMessage(message, ex); ???????????if (log.IsErrorEnabled) ???????????{ ???????????????log.Error(message, ex); ???????????} ???????} ???????public static void ErrorFormat(string format, params object[] args) ???????{ ???????????HandMessage(format, args); ???????????if (log.IsErrorEnabled) ???????????{ ???????????????log.ErrorFormat(format, args); ???????????} ???????} ???????public static void Fatal(object message) ???????{ ???????????HandMessage(message); ???????????if (log.IsFatalEnabled) ???????????{ ???????????????log.Fatal(message); ???????????} ???????} ???????public static void Fatal(object message, Exception ex) ???????{ ???????????HandMessage(message, ex); ???????????if (log.IsFatalEnabled) ???????????{ ???????????????log.Fatal(message, ex); ???????????} ???????} ???????public static void FatalFormat(string format, params object[] args) ???????{ ???????????HandMessage(format, args); ???????????if (log.IsFatalEnabled) ???????????{ ???????????????log.FatalFormat(format, args); ???????????} ???????} ???????public static void Info(object message) ???????{ ???????????HandMessage(message); ???????????if (log.IsInfoEnabled) ???????????{ ???????????????log.Info(message); ???????????} ???????} ???????public static void Info(object message, Exception ex) ???????{ ???????????HandMessage(message, ex); ???????????if (log.IsInfoEnabled) ???????????{ ???????????????log.Info(message, ex); ???????????} ???????} ???????public static void InfoFormat(string format, params object[] args) ???????{ ???????????HandMessage(format, args); ???????????if (log.IsInfoEnabled) ???????????{ ???????????????log.InfoFormat(format, args); ???????????} ???????} ???????public static void Warn(object message) ???????{ ???????????HandMessage(message); ???????????if (log.IsWarnEnabled) ???????????{ ???????????????log.Warn(message); ???????????} ???????} ???????public static void Warn(object message, Exception ex) ???????{ ???????????HandMessage(message, ex); ???????????if (log.IsWarnEnabled) ???????????{ ???????????????log.Warn(message, ex); ???????????} ???????} ???????public static void WarnFormat(string format, params object[] args) ???????{ ???????????HandMessage(format, args); ???????????if (log.IsWarnEnabled) ???????????{ ???????????????log.WarnFormat(format, args); ???????????} ???????} ???????*/ ???????#endregion ???}7 全局异常处理
添加一个自定义过滤器
???public class MyExceptionFileAttribute : HandleErrorAttribute ???{ ???????public override void OnException(ExceptionContext filterContext) ???????{ ???????????base.OnException(filterContext); ???????????//处理错误消息，将其跳转到一个页面 ???????????LogHelper.Debug(filterContext.Exception.ToString()); ???????????//页面跳转到错误页面 ???????????// filterContext.HttpContext.Response.Redirect("/Error.cshtml"); ???????} ???}
注册过滤器
???public class FilterConfig ???{ ???????public static void RegisterGlobalFilters(GlobalFilterCollection filters) ???????{ ???????????filters.Add(new HandleErrorAttribute()); ???????????filters.Add(new MyExceptionFileAttribute()); ???????} ???}完事
log4net配置+全局异常抓取防遗忘整理
原文地址：http://www.cnblogs.com/stt-bky/p/7660318.html