春季事件沒有得到公佈

Question

我的自定義事件

public class TestEvent<E> { 
    private E object; 
} 

測試類

public class Test{ 
    String message; 
} 

類，監聽事件有以下監聽

@Component 
public class TestEventListener{ 
    // This listener works 
    @EventListener 
    public void testEvent(Test test) { 
     logger.info("Test Received"); 
    } 
    // This listener doesn't work 
    @EventListener 
    public void testEvent(TestEvent<Test> testEvent) { 
     logger.info("Received"); 
    } 
} 

代碼發佈事件

@Service 
public class TestService{ 
    @Autowired 
    private ApplicationEventPublisher applicationEventPublisher; 

    public void sendMessage(){ 
     Test test = new Test(); 
     // Event is published 
     applicationEventPublisher.publishEvent(test); 
     TestEvent<Test> testEvent = new TestEvent(test) 
     // Event is not published 
     applicationEventPublisher.publishEvent(testEvent); 
    } 
} 

不知道代碼有什麼問題，但調用永遠不會到達我的監聽器。我正在使用Spring 4.3.3 RELEASE

Answer 1

我能解決這個問題。代碼更改如下：

public class TestEvent<E> implements ResolvableTypeProvider { 
    private E object; 

    @Override 
    public ResolvableType getResolvableType() { 
     return ResolvableType.forClassWithGenerics(getClass(), 
       ResolvableType.forInstance(object)); 
     } 
}