The "System.out.println(new String(zk.getData(znode,false,null)));" is
causing 123 to be displayed.
On Fri, Oct 17, 2014 at 12:15 AM, 沈冠璞 <shenguanpu@360.cn> wrote:
> hi, I am a newbie of the zookeeper.I have a question on get data order.
> here is my program:
>
> public class ZkReader {
> public static void main(String[] args) throws IOException,
> InterruptedException, KeeperException {
> String hostPort = "10.16.73.22,10.16.73.12,10.16.73.13";
> String znode = "/test";
> ZooKeeper zk = new ZooKeeper(hostPort, 3000, new MyWatcher());
> System.out.println(new String(zk.getData(znode,false,null)));
> }
> }
>
> class MyWatcher implements Watcher {
>
> @Override
> public void process(WatchedEvent event) {
> System.out.println("hello zookeeper");
> System.out.println(String.format("hello event! type=%s, stat=%s,
> path=%s",event.getType(),event.getState(),event.getPath()));
> }
> }
>
> the result:
> hello zookeeper
> 123
> hello event! type=None, stat=SyncConnected, path=null
>
> I don’t know why the data of node /test: 123 , shows between "hello
> zookeeper" and "hello event!”
> Could somebody explain for me? Thanks a lot.
>
> Best Regards!
> Guanpu Shen
>
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