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认证0级讲师
ConcurrentHashMap lastRequestMap = ...
long now = System.currentTimeMillis()Long lastRequestTime = lastRequestMap.get(userid)if(lastRequestTime != null && lastRequestTime > now - 5秒钟) {
return;
}lastRequestMap.put(userid, now)......
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
ConcurrentHashMap lastRequestMap = ...
long now = System.currentTimeMillis()
Long lastRequestTime = lastRequestMap.get(userid)
if(lastRequestTime != null && lastRequestTime > now - 5秒钟) {
}
lastRequestMap.put(userid, now)
......