zookeeper JavaApi 创建节点

import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.apache.zookeeper.CreateMode;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class CuratorTest {
    private  CuratorFramework client;
    @Before
    public void testConnection(){
        //第一种方式
        RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000,10);
        //CuratorFramework client = CuratorFrameworkFactory.newClient("198.168.149.135:2181", 60 * 1000, 15 * 1000, retryPolicy);
        //client.start();
        //第二种方式
        client = (CuratorFramework) CuratorFrameworkFactory.builder().connectString("198.168.149.135:2181")
                .sessionTimeoutMs(60 * 1000)
                .retryPolicy(retryPolicy).namespace("itheima").build();
        client.start();
    }
    /**
     * 创建节点：create 持久 临时 顺序 数据
     * 1.基本创建
     * 2.创建节点  带有数据
     * 3.设置节点类型
     * 4.创建多级节点
     *
     * */
    @Test
    public void testCreat() throws Exception {
        //1.基本创建
        String s = client.create().forPath("/app1");
        System.out.println(s);
    }
    @Test
    public void testCreat2() throws Exception {
        //2.创建节点  带有数据
        String s = client.create().forPath("/app2","hehe".getBytes());
        System.out.println(s);
    }
    @Test
    public void testCreat3() throws Exception {
        //3.设置节点类型 默认类型：持久化
        String s = client.create().withMode(CreateMode.EPHEMERAL).forPath("/app3");
        System.out.println(s);
    }
    @Test
    public void testCreat4() throws Exception {
        //4.创建多级节点
        //creatingParentsIfNeeded 如果父节点不存在就创建父节点
        String s = client.create().creatingParentsIfNeeded().forPath("/app4/p1");
        System.out.println(s);
    }
    @After
    public void close(){
        if (client!=null){
            client.close();
        }
    }
}