MVC中使用Log4net

来源：互联网发布：美工外包tmyunying 编辑：程序博客网时间：2024/04/29 09:19

MVC配置Log4Net

在Nuget中搜索Log4net ,在根目录中新建一个文件夹“error”,在根目录下新建一个错误页网页叫(error.html)
在“error”文件夹中创建MyExceptionAttribute.cs文件

 /// <summary>    /// 这是异常过滤器    /// 要在FilterConfig中注册一下    /// </summary>    public class MyExceptionAttribute : HandleErrorAttribute    {        /// <summary>        /// 捕获异常        /// </summary>        /// <param name="filterContext"></param>        public override void OnException(ExceptionContext filterContext)        {            base.OnException(filterContext);            Exception exception = filterContext.Exception;            //写入队列            ExcptionQueue.Enqueue(exception);            //跳到错误页            filterContext.HttpContext.Response.Redirect("/error.html");        }        /// <summary>        /// 创建队列        /// </summary>        public static Queue<Exception> ExcptionQueue = new Queue<Exception>();    }

打开App_Start文件夹中的FilterConfig.cs修改

    public class FilterConfig    {        public static void RegisterGlobalFilters(GlobalFilterCollection filters)        {          //  filters.Add(new ErrorHandler.AiHandleErrorAttribute());          //自己的异常捕获上面是系统的            filters.Add(new WebApp.error.MyExceptionAttribute());        }    }

进入Web.config中添加配置信息

<configSections>    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/></configSections> <log4net>    <!-- OFF, FATAL, ERROR, WARN, INFO, DEBUG, ALL -->    <!-- Set root logger level to ERROR and its appenders -->    <root>      <level value="ALL"/>      <appender-ref ref="SysAppender"/>    </root>    <!-- Print only messages of level DEBUG or above in the packages -->    <logger name="WebLogger">      <level value="DEBUG"/>    </logger>    <appender name="SysAppender" type="log4net.Appender.RollingFileAppender,log4net" >      <param name="File" value="App_Data/" />      <param name="AppendToFile" value="true" />      <param name="RollingStyle" value="Date" />      <param name="DatePattern" value="&quot;Logs_&quot;yyyyMMdd&quot;.txt&quot;" />      <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="&#13;&#10;----------------------header--------------------------&#13;&#10;" />        <param name="Footer" value="&#13;&#10;----------------------footer--------------------------&#13;&#10;" />      </layout>    </appender>    <appender name="consoleApp" type="log4net.Appender.ConsoleAppender,log4net">      <layout type="log4net.Layout.PatternLayout,log4net">        <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />      </layout>    </appender>  </log4net>

在根目录Global.asax的Application_Start()方法中配置

        protected void Application_Start()        {            //log4net            log4net.Config.XmlConfigurator.Configure();            //开启线程，扫描异常信息队列            string filePath = Server.MapPath("/Log/");            ThreadPool.QueueUserWorkItem((a)=> {                while (true)                {                    //队列是否有数据                    if (WebApp.error.MyExceptionAttribute.ExcptionQueue.Count()>0)                    {                        //出队                        Exception exception = WebApp.error.MyExceptionAttribute.ExcptionQueue.Dequeue();                        if (exception != null)                        {                            ////写入日志文件                            //string fileName = DateTime.Now.ToString("yyyy-MM-dd");                            //File.AppendAllText(filePath + fileName + ".txt", exception.ToString(), System.Text.Encoding.UTF8);                            ILog logger = LogManager.GetLogger("errorMsg");                            logger.Error(exception.ToString());                        }                        else                        {                            Thread.Sleep(3000);                        }                    }                    else                    {                        Thread.Sleep(3000);                    }                }            },filePath);            AreaRegistration.RegisterAllAreas();            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);            RouteConfig.RegisterRoutes(RouteTable.Routes);            BundleConfig.RegisterBundles(BundleTable.Bundles);      }

调试时使用开始执行不调试，程序异常时会在根目录的App_Data文件夹中生成错误信息的文本文件，记得网上找个好看的错误页

扩展
在根目录Global.asax文件中，新建一个Application_Error()方法

        protected void Application_Error(object sender, EventArgs e)        {            Exception ex = Server.GetLastError();            if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 404)            {            //跳转到错误页                Response.Redirect("/Error.html");            }        }

阅读全文

0 0