黄舟2017-04-18 09:38:47
Yes, it is processed in your Servlet/Action layer. If the lower layer can handle it, it will be caught by itself. If it cannot be handled, it will be thrown upward.
PHPz2017-04-18 09:38:47
The lower layer can also handle it without recording. It throws the error up and records the error information in catch. .