我有一个方面设置
@Aspect
@Component
public class JsonAspect {
@Around("execution(public au.com.mycompany.common.json.response.JsonResponse *(..)) " +
"&& @annotation(org.springframework.web.bind.annotation.RequestMapping)")
public final Object beforeMethod(final ProceedingJoinPoint joinPoint) throws JsonException {
try {
System.out.println("before...................");
System.out.println(joinPoint.getSignature().getName());
return joinPoint.proceed();
} catch (Throwable t) {
throw new JsonException(t);
}
}
}
我应该使用以下方法将<{1}}类应用于
@Controller
问题是我通过@RequestMapping(value = "/validate",
method = RequestMethod.POST,
produces = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public final JsonResponse<JsonValidationResponse> validateViaJson(...
@Autowired
当我尝试代理这个类时,它抱怨没有默认的构造函数。所以我决定为该类创建一个接口,但现在我在同一个类中的一个不相关的方法上得到以下错误。
java.lang.IllegalArgumentException:object不是。的实例 宣布课程
上述错误适用于同一类但不属于aspectj切入点的方法。如果删除aspectj切入点它可以工作(具有新接口的事件)。所以似乎aspectj代理以某种方式引起了问题。
任何人都知道为什么?
@ nicholas.hauschild我尝试了你的解决方案,但现在我在初始化地图时遇到了NullPointer异常。
private final ClientService clientService;
private final VehicleService vehicleService;
@Autowired
public QuoteControllerImpl(
final ClientService clientService,
final VehicleService vehicleService,
) {
this.clientService = clientService;
this.vehicleService = vehicleService;
}
clientService 为空。
答案 0 :(得分:0)
我不是这个解决方案的忠实粉丝,但是如果您创建默认构造函数以及@Autowired
,那么Spring将使用@Autowired
一个。
private final ClientService clientService;
private final VehicleService vehicleService;
@Autowired
public QuoteControllerImpl(
final ClientService clientService,
final VehicleService vehicleService,
) {
this.clientService = clientService;
this.vehicleService = vehicleService;
}
public QuoteControllerImpl() {
//Spring won't use me...
this.clientService = null;
this.vehicleService = null;
}