多节点,多线程下发订单,使用zookeeper分布式锁机制保证订单正确接入oms系统

import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.recipes.locks.InterProcessMutex;
import org.apache.curator.retry.ExponentialBackoffRetry;
 
public class ZkUtils {
 
    private static final String zkStr = ConfUtil.getProperty("zkStr");
    private static final String zkPath = ConfUtil.getProperty("zkPath");
    
    public static InterProcessMutex createMutexLock(){
        
        RetryPolicy retryPolicy = new ExponentialBackoffRetry(1000, 10); //1 重试策略：初试时间为1s 重试10次
        
        CuratorFramework client = CuratorFrameworkFactory.builder()//2 通过工厂创建连接
                    .connectString(zkStr)
                    .sessionTimeoutMs(5000)
                    .retryPolicy(retryPolicy)
                    .build();
        client.start(); // 开启连接
        InterProcessMutex mutexLock = new InterProcessMutex(client, zkPath); // 创建分布式锁
        return mutexLock;
        
    }
}

public class Job {
    private final static org.slf4j.Logger logger=LoggerFactory.getLogger(HnJob.class);
 
    @Autowired
    private IHNOrderService iHNOrderService;
    
    public void execute(){
        
        InterProcessMutex mutexLock = ZkUtils.createMutexLock();
        try{
            mutexLock.acquire();
            bizHandler(); //执行订单下发业务处理逻辑
            
        }catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {
                mutexLock.release();
            } catch (Exception e) {
                e.printStackTrace();
            } 
        }
    }
    
    void bizHandler(){
        long start=System.currentTimeMillis();
        logger.info("====================订单下发开始");
        iHNOrderService.hnOrderQuery();
        long end=System.currentTimeMillis();
        logger.info("=================订单下发结束,耗时={}秒",(end-start)/(1000));
    }
    
    
    
}