在我的项目中,我有一个域层,它基本上是POJO和一个位于域层顶部的Spring控制器/服务层.我还有一个位于服务和域之间的AOP层.
我的域层正在抛出业务异常,这些异常现在正在服务层中处理.
但是我想更改它,以便在AOP层中处理从域层抛出的异常. AOP层会出现某种错误响应,并将其发送回Spring控制器/ Web服务层.
我可以创建一个IBizResponse并创建它的两个子类/接口,也许是SuccessResponse和ErrorResponse,并使我的域层方法返回IBizResponse.但是,我无法弄清楚如何使AOP将ErrorResponse对象返回到服务层.
最佳答案
我遇到了同样的情况,我必须在任何异常处理的情况下返回错误响应DTO.在@Aspect类中,
@Aspect
@Component
public class MyAspect{
private static final Logger LOGGER = LoggerFactory.getLogger(MyAspect.class);
@Pointcut("execution(* com.linda.dao.strategy.*.*(..))")
public void strategyMethods() { }
@Pointcut("execution(* com.linda.controller.*.*(..)) || execution(* com.linda.Manager.*(..))")
public void controllerMethods(){ }
@Around("strategyMethods()")
public Object profileStrategyMethods(ProceedingJoinPoint pjp) throws Throwable {
long start = System.currentTimeMillis();
Object output = null;
LOGGER.info("Class:"+pjp.getTarget().getClass()+" entry -> method ->"+pjp.getSignature().getName());
try{
output = pjp.proceed();
long elapsedTime = System.currentTimeMillis() - start;
LOGGER.info("Method execution time: " + elapsedTime + " milliseconds.");
LOGGER.info("Class:"+pjp.getTarget().getClass()+" exit -> method ->"+pjp.getSignature().getName());
}catch(Throwable t){
throw new InternalServerException(t.getMessage());
}
return output;
}
@AfterThrowing(pointcut="execution(* com.linda.dao.strategy.*.*(..)) || execution(* com.linda.controller.*.*(..)) || execution(* com.linda.Manager.*(..))",throwing = "ex")
public void doRecoveryActions(JoinPoint joinPoint,Throwable ex) {
Signature signature = joinPoint.getSignature();
String methodName = signature.getName();
String stuff = signature.toString();
String arguments = Arrays.toString(joinPoint.getArgs());
LOGGER.error("Write something in the log... We have caught exception in method: "
+ methodName + " with arguments "
+ arguments + "\nand the full toString: " + stuff + "\nthe exception is: "
+ ex.getMessage());
}
}
为下面的异常处理定义了另一个类：
@ControllerAdvice
public class ExceptionLogAdvice {
@ExceptionHandler(InternalServerException.class)
@ResponseStatus(HttpStatus.BAD_GATEWAY)
@ResponseBody
public ResponseEntity