java 有赞积分变动消息通知
时间: 2024-08-02 08:01:29 浏览: 68
在 Java 中,如果涉及到有赞积分变动的消息通知,通常会设计一种事件驱动的架构。你可以创建一个专门处理积分变化的接口或者抽象类,比如 `ScoreChangeEvent`:
```java
public interface ScoreChangeEvent {
void onScoreChanged(int oldScore, int newScore);
}
```
然后,在积分服务、活动系统或者用户中心等需要发送积分变动通知的地方,实现在这个接口上:
```java
public class PointService {
private List<ScoreChangeListener> listeners = new ArrayList<>();
public void addScoreChangeListener(ScoreChangeListener listener) {
listeners.add(listener);
}
public void updateScore(int userId, int newScore) {
// 更新积分数据库操作...
int oldScore = ...; // 获取旧的积分值
fireScoreChangeEvent(userId, oldScore, newScore);
}
private void fireScoreChangeEvent(int userId, int oldScore, int newScore) {
ScoreChangeEvent event = new ScoreChangeEventImpl(userId, oldScore, newScore);
for (ScoreChangeListener listener : listeners) {
listener.onScoreChanged(oldScore, newScore);
}
}
}
class ScoreChangeEventImpl implements ScoreChangeEvent {
private int userId;
private int oldScore;
private int newScore;
// 构造函数和getter/setter...
@Override
public void onScoreChanged(int oldScore, int newScore) {
// 这里可以进一步发送消息给前端或者异步通知其他系统
System.out.println("User " + userId + " scored changed from " + oldScore + " to " + newScore);
}
}
```