SpringBoot自定义监听器来实现消息的推送与接收

r囧r小猫 2023-01-11 09:05 76阅读 0赞

# SpringBoot自定义监听器来实现消息的推送与接收 #

### 一、自定义【监听事件】继承ApplicationEvent ###

public class EmailEvent  extends ApplicationEvent { 
    
        @Setter
        @Getter
        private String email;
    
        @Setter
        @Getter
        private String content;
    
        public EmailEvent(Object source,String email, String content){ 
            super(source);
            this.email = email;
            this.content = content;
        }
    
        public EmailEvent(Object source) { 
            super(source);
        }
    }

### 二、自定义【监听器】实现，ApplicationListener 【容器监听者】注册事件 ###

接收消息：

@Component
    public class EmailListener implements ApplicationListener<EmailEvent> { 
    
        @Override
        public void onApplicationEvent(EmailEvent emailEvent) { 
            Object source = emailEvent.getSource();
            /** * 邮件监听器，一旦有邮件事件，则会触发此处,接收到消息 */
            System.out.println("邮件地址：" + emailEvent.getEmail());
            System.out.println("邮件内容：" + emailEvent.getContent());
        }
    
    }

## 三、WebApplicationContext 来推送事件 ##

webapplicationcontext来推送事件消息：

@RunWith(SpringRunner.class)
    @SpringBootTest
    public class ApplicationTest { 
    
        @Autowired
        private WebApplicationContext webapplicationcontext;
    
        /** * 测试自定义监听器 */
        @Test
        public void listenerTest(){ 
            EmailEvent emailEvent = new EmailEvent("object", "test@qq.com", "邮件内容");
            webapplicationcontext.publishEvent(emailEvent);
        }
    
    }