Spring注解驱动之ApplicationListener用法解读

package com.meimeixia.ext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
// 当然了，监听器这东西要工作，我们还得把它添加在容器中
@Component
public class MyApplicationListener implements ApplicationListener<ApplicationEvent> {
	// 当容器中发布此事件以后，下面这个方法就会被触发
	@Override
	public void onApplicationEvent(ApplicationEvent event) {
		// TODO Auto-generated method stub
		System.out.println("收到事件：" + event);
	}
}

package com.meimeixia.test;
import org.junit.Test;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import com.meimeixia.ext.ExtConfig;
public class IOCTest_Ext {
	
	@Test
	public void test01() {
		AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(ExtConfig.class);
		
		// 关闭容器
		applicationContext.close();
	}
}

    public static void main(String[] args) {
        final AnnotationConfigApplicationContext applicationContext
                = new AnnotationConfigApplicationContext(ExtConfig.class);
        applicationContext.publishEvent("发送事件");
        applicationContext.close();
    }
@Component
public class MyApplicationListener implements ApplicationListener<PayloadApplicationEvent> {
    public void onApplicationEvent(PayloadApplicationEvent applicationEvent) {
        System.out.println("收到事件：" + applicationEvent);
        System.out.println(applicationEvent.getPayload());
    }
}