注解的 AOP 在 Spring Boot 中不起作用

Question

我有我的注释，每当我的方法（有我的注释）被执行时，AOP应该被调用，但它在我的Spring Boot控制器中不起作用。但是它适用于具有其他注释的方法。请帮助我了解发生了什么.

更新：我的注释

 @Retention(RUNTIME)
    @Target({ METHOD, CONSTRUCTOR })
    public @interface MyAnnotation {
    }

@Aspect
@Component
public class AnnotationAspect {
    private static final String POINTCUT_METHOD1 = "@annotation(com.somepackage.MyAnnotation)";


    @Around(POINTCUT_METHOD1)
    public Object weaveJoinPoint(ProceedingJoinPoint joinPoint) throws Throwable {
        try {
            System.out.println("Beforeee " + joinPoint);
            joinPoint.proceed();
        } finally {
            System.out.println("Afterrr " + joinPoint);
        }
        return null;
    }
}

场景1：（工作）

@Controller
@RequestMapping("user")
public class ArticleController {

    @GetMapping("article/{id}")
    @MyAnnotation // here it is
    public ResponseEntity<String> getArticleById(@PathVariable("id") Integer id) 
 {
        return new ResponseEntity<String>(dummyMethod(), HttpStatus.OK);
    }

    public String dummyMethod() {
        System.out.println("Dummy method with MyAnnotation");
        return "HelloWorld!";
    }
}

日志：（工作中）

Beforeee execution(ResponseEntity com.mypackage.getArticleById(Integer))
Dummy method with MyAnnotation
Afterrr execution(ResponseEntity com.mypackage.getArticleById(Integer))

场景2：（不工作）

@Controller
@RequestMapping("user")
public class ArticleController {

    @GetMapping("article/{id}")     
    public ResponseEntity<String> getArticleById(@PathVariable("id") Integer id) 
 {
        return new ResponseEntity<String>(dummyMethod(), HttpStatus.OK);
    }
    @MyAnnotation //here it is
    public String dummyMethod() {
        System.out.println("Dummy method with MyAnnotation");
        return "HelloWorld!";
    }
}

日志：（不工作）

Dummy method with MyAnnotation

场景 3：（不工作）

@Service
public class ArticleService {
@MyAnnotation //here it is
public String dummyMethod() {
            System.out.println("Dummy method with MyAnnotation");
            return "HelloWorld!";
        }
}

Answer 1

它可能不起作用，因为您从同一个类调用 dummyMethod()。尝试将 dummyMethod() 移至另一个服务类。原因是同一类内的调用不会通过 Spring 代理。对 getArticleById() 的调用是代理的，将由 AOP 处理，但 dummyMethod() 也可能是私有方法。

Answer 2

您能解决这个问题吗？我也面临同样的情况

自定义注释：

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface LogExecutionProfile {}

方面类：

@Slf4j
@Aspect
@Component
public class LoggingAspect {

@Around("@annotation(LogExecutionProfile) || execution(public * @LogExecutionProfile *.*(..)))")
public Object profileMethod(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
    MethodSignature methodSignature = (MethodSignature) 
    proceedingJoinPoint.getSignature();
    String className = methodSignature.getDeclaringType().getSimpleName();
    String methodName = methodSignature.getName();
    System.out.println("###-### " + className + "." + methodName + " Started profiling execution time and memory usage.");
    log.debug("###-### " + className + "." + methodName + " Started profiling execution time and memory usage.");
    long startTime = System.currentTimeMillis();
    long memoryAtStart = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    Object result = proceedingJoinPoint.proceed();
    long endTime = System.currentTimeMillis();
    long memoryAtEnd = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();

    log.debug("###-### " + className + "." + methodName + " execution time: " + (endTime - startTime) + " ms"
            + " memory used: " + (memoryAtEnd - memoryAtStart) + " bytes of memory");
    System.out.println("###-### " + className + "." + methodName + " execution time: " + (endTime - startTime) + " ms"
            + " memory used: " + (memoryAtEnd - memoryAtStart) + " bytes of memory");
    return result;
}

}