自定义事件

import org.springframework.context.ApplicationEvent;/** * @author Kevin * @description 自定义事件 * @date 2016/6/30 */public class DemoEvent extends ApplicationEvent {    private String msg;    public DemoEvent(Object source, String msg) {        super(source);        this.msg = msg;    }    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }}

事件监听器

import org.springframework.context.ApplicationListener;import org.springframework.stereotype.Component;/** * @author Kevin * @description 事件监听器 * @date 2016/6/30 */@Componentpublic class DemoListener implements ApplicationListener
    
     {    @Override    public void onApplicationEvent(DemoEvent demoEvent) {        String msg = demoEvent.getMsg();        System.out.println("DemoListener接收到了DemoPublisher发布的消息：" + msg);    }}
    

事件发布类

import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.stereotype.Component;/** * @author Kevin * @description 事件发布类 * @date 2016/6/30 */@Componentpublic class DemoPublisher {    // 注入applicationContext用来发布事件    @Autowired    ApplicationContext applicationContext;    // 发布事件    public void publish(String msg) {        applicationContext.publishEvent(new DemoEvent(this, msg));    }}

配置类

import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;/** * @author Kevin * @description 配置类 * @date 2016/6/30 */@Configuration@ComponentScan("ch02.event")public class EventConfig {}

运行

import org.springframework.context.annotation.AnnotationConfigApplicationContext;/** * @author Kevin * @description * @date 2016/6/30 */public class Main {    public static void main(String[] args) {        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(EventConfig.class);        DemoPublisher demoPublisher = context.getBean(DemoPublisher.class);        demoPublisher.publish("this is a application event");        context.close();    }}

结果

事件监听类将得到输出信息