java 连接远程Linux 服务器

创建闭锁，确保能连接到zk服务器。

// 创建闭锁
final CountDownLatch countDownLatch = new CountDownLatch(1);

String connectString="139.196.31.237:2181";
int sessionTimeout=5000;
// 创建ZooKeeper对象
ZooKeeper zooKeeper = new ZooKeeper(connectString, sessionTimeout, new Watcher() {
    @Override
    public void process(WatchedEvent watchedEvent) {
        System.out.println("连接zk成功！watchedEvent："+watchedEvent.getState());
        countDownLatch.countDown();
    }
});
// 利用闭锁的await()方法产生阻塞，等待连接zk的线程执行完毕
countDownLatch.await();

详情请参考：https://www.2cto.com/net/201803/725311.html