利用监听者模式,发布用户变更事件，方便做扩展业务

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定义事件

public class UserModifyEvent extends ApplicationEvent {

	private static final long serialVersionUID = 1L;

	private User user;
	//是新增
	private boolean isInsert;
	//是修改
	private boolean isUpdate;
	//是删除
	private boolean isDelete;

	public UserModifyEvent(User user, SqlCommandType sqlCommandType) {
		super(user);
		this.user = user;
		this.areaId = UserUtils.getLoginAreaId();
		this.isInsert = SqlCommandType.INSERT.equals(sqlCommandType);
		this.isUpdate = SqlCommandType.UPDATE.equals(sqlCommandType);
		this.isDelete = SqlCommandType.DELETE.equals(sqlCommandType);
	}

	public User getUser() {
		return user;
	}

	public boolean isInsert() {
		return isInsert;
	}

	public boolean isUpdate() {
		return isUpdate;
	}

	public boolean isDelete() {
		return isDelete;
	}

}

发布事件

	@Autowired
	ApplicationEventPublisher publisher;

public JsonResult saveUser(User user){
	try{
		userDao.insertSelective(user);
		publisher.publishEvent(new UserModifyEvent(user, SqlCommandType.INSERT));
	catch(DuplicateKeyException e){
		userDao.updateSelective(user);
		publisher.publishEvent(new UserModifyEvent(user, SqlCommandType.UPDATE));
	}catch(Exception e){
		log.error(e);
		throw new LocalException("保存用户失败");
	}
	return OK(user.getId());
}

同步到华为云视频帐号：

public class SameUser2HuaWei implements ApplicationListener<UserModifyEvent> {

	@Override
	public void onApplicationEvent(UserModifyEvent event) {
		User user = event.getUser();
		......
	}

}

给用户发送短信消息提醒

public class SendNoticeWhenCreateUser implements ApplicationListener<UserModifyEvent> {

	@Override
	public void onApplicationEvent(UserModifyEvent event) {
		User user = event.getUser();
		......
	}

}

给用户给用户初始化一些最小权限

public class InitMiniAuthWhenInsertUser implements ApplicationListener<UserModifyEvent> {

	@Override
	public void onApplicationEvent(UserModifyEvent event) {
		User user = event.getUser();
		......
	}
}

给用户关连一些系统必要的设置

public class JoinSettingWhenCreateUser implements ApplicationListener<UserModifyEvent> {

	@Override
	public void onApplicationEvent(UserModifyEvent event) {
		User user = event.getUser();
		......
	}
}

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