从网上下载的破解版的hishop中的源码扒出来的，觉得不错，先记下来，以后做项目异常BUG记录都用这个。。
下面是使用流程：
1. VS中用NUGET搜索log4net，安装
2. 项目的工具类库Util中建一Log类，代码如下：
using log4net;
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace JiuFen.KuaiLe10.Util{ public static class Log { public static void Error(object message) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Error(message); } public static void Error(object message, System.Exception exception) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Error(message, exception); } public static void Info(object message) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Info(message); } public static void Info(object message, System.Exception ex) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Info(message, ex); } public static void Warn(object message) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Warn(message); } public static void Warn(object message, System.Exception ex) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Warn(message, ex); } public static void Debug(object message) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Debug(message); } public static void Debug(object message, System.Exception ex) { ILog logger = LogManager.GetLogger(Log.GetCurrentMethodFullName()); logger.Debug(message, ex); } private static string GetCurrentMethodFullName() { string result; try { int num = 2; System.Diagnostics.StackTrace stackTrace = new System.Diagnostics.StackTrace(); int num2 = stackTrace.GetFrames().Length; System.Diagnostics.StackFrame frame; string text; do { frame = stackTrace.GetFrame(num++); System.Type declaringType = frame.GetMethod().DeclaringType; text = declaringType.ToString(); } while (text.EndsWith("Exception") && num < num2); string name = frame.GetMethod().Name; result = text + "." + name; } catch { result = null; } return result; } }}
3. web.config文件中加入如下内容：
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" /></configSections>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" /> </system.webServer><log4net>
<!--数据日志--> <appender name="InfoRollingFileAppender" type="log4net.Appender.RollingFileAppender"> <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> <param name="File" value="Log\Info\" /> <param name="AppendToFile" value="true" /> <param name="rollingStyle" value="Date" /> <param name="datePattern" value="yyyy-MM-dd.'Info.log'" /> <param name="staticLogFileName" value="false" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%n%n%n 记录时间：%date %n日志级别： %-5level %n出错类：%logger %n错误描述：%message %newline%newline" /> </layout> <filter type="log4net.Filter.LevelRangeFilter"> <param name="LevelMin" value="INFO" /> <param name="LevelMax" value="INFO" /> </filter> </appender> <!--错误日志--> <appender name="ErrorRollingFileAppender" type="log4net.Appender.RollingFileAppender"> <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> <param name="File" value="Log\Error\" /> <param name="AppendToFile" value="true" /> <param name="rollingStyle" value="Date" /> <param name="datePattern" value="yyyy-MM-dd.'error.log'" /> <param name="staticLogFileName" value="false" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%n%n%n 记录时间：%date %n日志级别： %-5level %n出错类：%logger %n错误描述：%message %newline%newline" /> </layout> <filter type="log4net.Filter.LevelRangeFilter"> <param name="LevelMin" value="ERROR" /> <param name="LevelMax" value="ERROR" /> </filter> </appender> <!--调试日志--> <appender name="DebugRollingFileAppender" type="log4net.Appender.RollingFileAppender"> <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> <param name="File" value="Log\Debug\" /> <param name="AppendToFile" value="true" /> <param name="rollingStyle" value="Date" /> <param name="datePattern" value="yyyy-MM-dd.'debug.log'" /> <param name="staticLogFileName" value="false" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%n%n%n 记录时间：%date %n日志级别： %-5level %n出错类：%logger %n错误描述：%message %newline%newline" /> </layout> <filter type="log4net.Filter.LevelRangeFilter"> <param name="LevelMin" value="DEBUG" /> <param name="LevelMax" value="DEBUG" /> </filter> </appender> <root> <level value="DEBUG" /> <!--文件形式记录日志--> <appender-ref ref="ErrorRollingFileAppender" /> <appender-ref ref="DebugRollingFileAppender" /> <appender-ref ref="InfoRollingFileAppender" /> </root></log4net>
4. 建立基类控制 器，重写OnException方法：
using JiuFen.KuaiLe10.Util;
using log4net;using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;namespace JiuFen.KuaiLe10.Web.Controllers{ public class BaseController : Controller { protected override void OnException(ExceptionContext filterContext) { Exception exception = filterContext.Exception; string message = exception.Message; base.OnException(filterContext); string str = filterContext.RouteData.Values["controller"].ToString(); string str1 = filterContext.RouteData.Values["action"].ToString(); object item = filterContext.RouteData.DataTokens["area"]; string str2 = string.Format("页面未捕获的异常：Area:{0},Controller:{1},Action:{2}", item, str, str1); Log.Error(str2, exception); } }}
5. 最重要的，在你的公用类库所在的项目的AssemblyInfo.cs文件中加入：
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
这样在建立控制器的时候继承自基类控制器，运行中出错的话都会记录到网站目录下的log目录下的debug目录下