log4net配置+全局异常抓取防遗忘整理
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
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