java 使用zookeeper包实现zookeeper分布式锁

zookeeper不可重入锁的实现代码

import org.apache.zookeeper.*;
import org.apache.zookeeper.data.Stat;
import java.io.IOException;
import java.util.Collections;
import java.util.List;

public class DistributedLockExample {
    private static final String ZOOKEEPER_CONNECTION_STRING = "localhost:2181";
    private static final int SESSION_TIMEOUT = 5000;
    private static final String LOCK_PATH = "/distributed_lock";
    private ZooKeeper zooKeeper;
    //当前最新的一个节点
    private String currentZnodeName;

    public DistributedLockExample() throws IOException {
        this.zooKeeper = new ZooKeeper(ZOOKEEPER_CONNECTION_STRING, SESSION_TIMEOUT, new Watcher() {
            @Override
            public void process(WatchedEvent event) {
                // Watcher实现
            }
        });
    }

    public void acquireLock() throws KeeperException, InterruptedException {
        while (true) {
            createLockNode();
            //获取锁节点下的所有子节点
            List<String> children = zooKeeper.getChildren(LOCK_PATH, false);
            //排序
            Collections.sort(children);
            //获取小的节点，也就是最先创建的那个节点
            String smallestNode = children.get(0);
            //如果当前最新节点等于最小节点，那么就代表获取到了锁
            if (currentZnodeName.equals(LOCK_PATH + "/" + smallestNode)) {
                return;
            } else {