AspectJ“around”和“proceed”加上“before/after”

Answer 1

通过这次测试

@Aspect
public class TestAspect {
    private static boolean runAround = true;

    public static void main(String[] args) {
        new TestAspect().hello();
        runAround = false;
        new TestAspect().hello();
    }

    public void hello() {
        System.err.println("in hello");
    }

    @After("execution(void aspects.TestAspect.hello())")
    public void afterHello(JoinPoint joinPoint) {
        System.err.println("after " + joinPoint);
    }

    @Around("execution(void aspects.TestAspect.hello())")
    public void aroundHello(ProceedingJoinPoint joinPoint) throws Throwable {
        System.err.println("in around before " + joinPoint);
        if (runAround) {
            joinPoint.proceed();
        }
        System.err.println("in around after " + joinPoint);
    }

    @Before("execution(void aspects.TestAspect.hello())")
    public void beforeHello(JoinPoint joinPoint) {
        System.err.println("before " + joinPoint);
    }
}

我有以下输出

1. 在执行前（void aspects.testaspect.hello（））
2. 执行前（void aspects.testaspect.hello（））
3. 在Hello中
4. 执行后（void aspects.testaspect.hello（））
5. 执行后（void aspects.testaspect.hello（））
6. 在执行前（void aspects.testaspect.hello（））
7. 执行后（void aspects.testaspect.hello（））