Methods and steps of ASP.NET mvc exception handling
This article mainly explains "methods and steps of ASP.NET mvc exception handling". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "the methods and steps of ASP.NET mvc exception handling".
1. First of all, it is common to save exception classes (that is, write exception information to a file)
The copy code is as follows:
Public class LogManager
{
Private string logFilePath = string.Empty
Public LogManager (string logFilePath)
{
This.logFilePath = logFilePath
FileInfo file = new FileInfo (logFilePath)
If (! file.Exists)
{
File.Create () .Close ()
}
}
Public void SaveLog (string message, DateTime writerTime)
{
String log = writerTime.ToString () + ":" + message
StreamWriter sw = new StreamWriter (logFilePath, true)
Sw.WriteLine (log)
Sw.Close ()
}
}
2. Exception handling of controller
In this way, you can override the OnException () method in the controller that requires exception handling, because it inherits the IExceptionFilter interface.
The copy code is as follows:
Public class ExceptionController: Controller
{
Public ActionResult Index ()
{
Throw new Exception ("I threw an exception!")
}
Protected override void OnException (ExceptionContext filterContext)
{
String filePath = Server.MapPath ("~ / Exception. Txt")
StreamWriter sw = System.IO.File.AppendText (filePath)
Sw.WriteLine (DateTime.Now.ToString () + ":" + filterContext.Exception.Message)
Sw.Close ()
Base.OnException (filterContext)
Redirect (/)
}
}
3. Filter exception handling
The copy code is as follows:
Namespace MyMVC.Controllers
{
Public class ExceptionController: Controller
{
[Error]
Public ActionResult Index ()
{
Throw new Exception ("filter exception!")
}
}
}
Public class ErrorAttribute: HandleErrorAttribute
{
Public override void OnException (ExceptionContext filterContext)
{
Base.OnException (filterContext)
String path = filterContext.HttpContext.Server.MapPath ("~ / Exception.txt")
StreamWriter sw = System.IO.File.AppendText (path)
Sw.WriteLine (DateTime.Now.ToString () + ":" + filterContext.Exception.Message)
Sw.Close ()
}
}
At this point, I believe you have a deeper understanding of the "methods and steps of ASP.NET mvc exception handling". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!
