【Spring】实现自定义事件的发布与处理

先自定义一个事件：

public class NotifyEvent extends ApplicationEvent {
    private String email;
    private String content;
    public NotifyEvent(Object source) {
        super(source);
    }
    public NotifyEvent(Object source, String email, String content) {
        super(source);
        this.email = email;
        this.content = content;
    }
    // 省略getter/setter方法
}

注册一个事件监听器：

@Component
public class NotifyListener implements ApplicationListener<NotifyEvent> {

    @Override
    public void onApplicationEvent(NotifyEvent event) {
        System.out.println("邮件地址：" + event.getEmail());
        System.out.println("邮件内容：" + event.getContent());
    }
}

发布事件：

@RunWith(SpringRunner.class)
@SpringBootTest
public class ListenerTest {
    @Autowired
    private WebApplicationContext webApplicationContext;

    @Test
    public void testListener() {
        NotifyEvent event = new NotifyEvent("object", "abc@qq.com", "This is the content");
        webApplicationContext.publishEvent(event);
    }
}