daily/zookeeper/meituan/Customers.java

package meituan;

import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.data.Stat;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class Customers {
    private static String connectString = "192.168.48.128:2181,192.168.48.129:2181,192.168.48.130:2181";
    private static int sessionTimeout = 60*1000;

    private ZooKeeper zooKeeper;
    
    public void getConnect() throws IOException {
        zooKeeper = new ZooKeeper(connectString, sessionTimeout, new Watcher() {
            public void process(WatchedEvent watchedEvent) {

                try {
                    getShopList();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
    
    public void getShopList() throws Exception {
        List<String> shops = zooKeeper.getChildren("/meituan", true);

        ArrayList<String> shopList = new ArrayList<String>();
        for (String shop : shops) {
            byte[] data = zooKeeper.getData("/meituan/" + shop, false, new Stat());
            shopList.add(new String(data));
        }
        System.out.println(shopList);
    }

    public void business() throws Exception {
        System.out.println("客户正在浏览商家…");
        System.in.read();
    }

    public static void main(String[] args) throws Exception {
        Customers customers = new Customers();
        customers.getConnect();
        customers.getShopList();
        customers.business();
    }
    
}