Io流 mvc异常处理

  //获取错误信息

 string errorMsg = filterContext.Exception.Message;

  //错误页面

 string url = filterContext.HttpContext.Request.RawUrl;

 filterContext.ExceptionHandled = true;

 //IO流创建文本放错误信息

 using(FileStreamfile=newFileStream(filterContext.HttpContext.Server.MapPath("~/Error/"+DateTime.Now.To  ShortDateString().Replace("/","")+"error.txt"), FileMode.Append)){

  writer.WriteLine("错误信息"+errorMsg);

writer.WriteLine("错误页面"+ url);

  writer.WriteLine("错误时间" + DateTime.Now.Date.ToString());

 writer.WriteLine("请求方式" + filterContext.HttpContext.Request.RequestType);