仿叮咚买菜,每日优鲜生鲜平台;
商城、会员、积分、签到、食品卡、拉新、分销加盟,运营中心,食谱、骑手、配送;
完善的功能,开箱即用,支持二次开发,
体验:https://gitee/mier520/fresh-supermarket
APP下载地址: https://plutusdog-apkpackage.oss-cn-beijing.aliyuncs/everyoneVentrueService1/4c79c90b04de41e0a98676a85cc5963d/application/vnd.android.package-archive/1646899212255.apk
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.function.BiConsumer;
public class SyncDataBuffer {
private Map<String ,Map<String ,Object>> buffer;
private Lock lock;
private SyncDataBuffer(){
this.buffer = new ConcurrentHashMap<>(16);
this.lock = new ReentrantLock();
}
/**
* 创建一个随机域
* @return
*/
public String randomDomain(){
String domain;
while(buffer.containsKey((domain = UUID.randomUUID().toString()))){}
return domain;
}
private static class Singleton {
private static SyncDataBuffer instance = new SyncDataBuffer();
}
}
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