spring 事件机制demo

理论知识不多讲，自行度娘。直接上代码，如下。

package com.ai.runner.dmp.service.event;import org.springframework.context.ApplicationEvent;/** * @author xuyw * @version V1.0 * @Description: * @date 2017-09-11 下午 2:01 */public class DmpEvent extends ApplicationEvent {    private static final long serialVersionUID = 1L;    /**     * 发送事件类型     */    private EventEnum eventType;    /**     * 发送的消息可发送json字符串     */    private String msg;    public DmpEvent(Object source, EventEnum eventType, String msg) {        super(source);        this.eventType = eventType;        this.msg = msg;    }    public EventEnum getEventType() {        return eventType;    }    public void setEventType(EventEnum eventType) {        this.eventType = eventType;    }    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }    public static enum EventEnum {        BIND_EQU("绑定设备"), UNBIND_EQU("解绑设备");        EventEnum(String desc) {            this.desc = desc;        }        private String desc;        public String getDesc() {            return desc;        }        public void setDesc(String desc) {            this.desc = desc;        }    }}

package com.ai.runner.dmp.service.event;

import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;

import com.ai.opt.sdk.util.CollectionUtil;
import com.ai.runner.dmp.dao.mapper.bo.TEquUserRel;
import com.ai.runner.dmp.service.atom.interfaces.ITEquUserRelAtomSV;
import com.ai.runner.dmp.service.atom.interfaces.ITEquipmentAtomSV;

/**
* @author xuyw
* @version V1.0
* @Description:
* @date 2017-09-11 下午 2:09
*/
@Component
public class DmpListener implements ApplicationListener {
private static final Logger LOG = LogManager.getLogger(DmpListener.class);
@Autowired
ITEquipmentAtomSV iTEquipmentAtomSV;
@Autowired
ITEquUserRelAtomSV iTEquUserRelAtomSV;

@Override//@Asyncpublic void onApplicationEvent(DmpEvent event) {    DmpEvent.EventEnum eventType = event.getEventType();    String msg = event.getMsg();    LOG.info("DmpListener收到事件监听：-->");    LOG.info("事件类型：" + eventType.getDesc());    LOG.info("事件内容：" + msg);    switch (eventType) {    case BIND_EQU:        iTEquipmentAtomSV.updateEquBindStatus(msg, "1");        break;    case UNBIND_EQU:        List<TEquUserRel> list = iTEquUserRelAtomSV                .queryEquUserRelByImei(msg);        if (CollectionUtil.isEmpty(list)) {            // 没有绑定的设备            iTEquipmentAtomSV.updateEquBindStatus(msg, "0");        }        break;    }}

}

package com.ai.runner.dmp.service.event;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.stereotype.Component;/** * @author xuyw * @version V1.0 * @Description: * @date 2017-09-11 下午 1:56 */@Componentpublic class DmpPublisher {    @Autowired    ApplicationContext applicationContext;    public void publishDmpEvent(DmpEvent.EventEnum eventType, String msg){        applicationContext.publishEvent(new DmpEvent(this,eventType,msg));    }}