ZooKeeper API简单调用

package zk.test;

import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.ZooKeeper;

public class ZkTest {
	private static final int SESSION_TIMEOUT = 30000;  
	
	public static void main(String[] args) throws Exception{
		ZooKeeper zk = new ZooKeeper("localhost:2181", 
				SESSION_TIMEOUT, new Watcher() { 
		            // 监控所有被触发的事件
		            @Override
					public void process(WatchedEvent event) { 
		                System.out.println("已经触发了" + event.getType() + "事件！"); 
		            } 
		        }); 
		
		zk.create("/testRootA", "testRoot_data".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
		//创建子节点1
		zk.create("/testRootA/testChild_1", "testChild_data".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
		
		
		System.out.println(new String(zk.getData("/testRootA", false, null)));
		System.out.println((zk.getChildren("/testRootA/testChild_1", true)));
		
		//修改
		zk.setData("/testRootA/testChild_1", "modifyTestChildOne".getBytes(), -1);
		System.out.println("目录结点状态:" + zk.exists("/testRootA", true));
		
		//创建子节点2
		zk.create("/testRootA/testChild_2", "testChild_2_data".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
		System.out.println((zk.getChildren("/testRootA/testChild_2", true)));
		
		//删除结点
		zk.delete("/testRootA/testChild_1", -1);
		zk.delete("/testRootA/testChild_2", -1);
		
		zk.delete("/testRootA", -1);
		
		zk.close();
		
	}
}

• —软件人才免语言低担保 赴美带薪读研！—