1、添加数据库引用

2、修改web.config

3、注册

public class MvcApplication : SpringMvcApplication //System.Web.HttpApplication

{

protected void Application_Start()

{

log4net.Config.XmlConfigurator.Configure();//读取Log4Net配置信息

4、输出异常信息

using CZBK.ItcastOA.WebApp.Models;using log4net;using Spring.Web.Mvc;using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Threading;using System.Web;using System.Web.Http;using System.Web.Mvc;using System.Web.Optimization;using System.Web.Routing;namespace CZBK.ItcastOA.WebApp{    // 注意: 有关启用 IIS6 或 IIS7 经典模式的说明，    // 请访问 http://go.microsoft.com/?LinkId=9394801    public class MvcApplication : SpringMvcApplication //System.Web.HttpApplication    {        protected void Application_Start()        {            log4net.Config.XmlConfigurator.Configure();//读取Log4Net配置信息            AreaRegistration.RegisterAllAreas();            WebApiConfig.Register(GlobalConfiguration.Configuration);            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);            RouteConfig.RegisterRoutes(RouteTable.Routes);            BundleConfig.RegisterBundles(BundleTable.Bundles);            string fileLogPath = Server.MapPath("/Log/");            //WaitCallback            ThreadPool.QueueUserWorkItem((a) =>            {                while (true)                {                    if (MyExceptionAttribute.ExceptionQueue.Count > 0)                    {                       Exception ex= MyExceptionAttribute.ExceptionQueue.Dequeue();//出队                       //string fileName = DateTime.Now.ToString("yyyy-MM-dd")+".txt";                       //File.AppendAllText(fileLogPath + fileName, ex.ToString(), System.Text.Encoding.Default);                       ILog logger = LogManager.GetLogger("errorMsg");                       logger.Error(ex.ToString());                    }                    else                    {                        Thread.Sleep(3000);//如果队列中没有数据，休息避免造成CPU的空转.                    }                }            },fileLogPath);        }    }}