全局異常處理,省去各種Try/Catch
暫時舉例返回字符串
1、項目包下創建 GlobalDefaultExceptionHandler 類
2、在class註解上@ControllerAdvice
3、在方法上註解上@ExceptionHandler(value = Exception.class)
@ControllerAdvice
public class GlobalDefaultExceptionHandler {
@ExceptionHandler(Exception.class)
@ResponseBody
public String exceptionHandler(HttpServletRequest request, Exception e) {
return "服務器繁忙中...";
}
}