java构建zk集群客户端

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zookeeper版本jar

zkclient-0.8.jar

zookeeper-3.4.6.jar

属性文件properties

zookeeper.cluster=10.2.4.12\:2181,10.2.4.13\:2181,10.2.4.14\:2181

构建客户端

自己构建zk路径根据实际情况修改 zk路径获取信息 DIR_SIGN+ROOT_NAME+DIR_SIGN+"ids"

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.Socket;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Properties;import java.util.Timer;import java.util.TimerTask;import org.I0Itec.zkclient.ZkClient;import org.apache.zookeeper.Watcher;import org.apache.zookeeper.ZooKeeper;/** * #zookeeper监控配置   #zookeeper.cluster=10.2.4.12:2181,10.2.4.13:2181,10.2.4.14:2181   #zookeeper.cluster=127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183   #zookeeper.timeout=5000 * ZkMonitor schedule */public class ZkMonitor {    private static String zk_cluster = "";    private static int zk_timeout = 0;    private static Timer timer = new Timer();    private static ZkClient zk;    public static final String ROOT_NAME = "brokers";    public static final String DIR_SIGN = "/";    public static String host_port = "";    static {        InputStream is = ZkMonitor.class.getResourceAsStream("/monconfig.properties");        Properties props = new Properties();        try {            props.load(is);            zk_cluster = props.getProperty("zookeeper.cluster");            zk_timeout = Integer.parseInt(props.getProperty("zookeeper.timeout"));        } catch (IOException e) {            e.printStackTrace();        }                //zk配置        if(null == zk_cluster || "".equals(zk_cluster)){            System.out.println("zookeeper.cluster is not config at monconfig.properties");            if(0==zk_timeout){                System.out.println("zookeeper.timeout is not config at monconfig.properties");             }        }else{            try {                timer.schedule(new TimerTask() {                    @Override                    public void run() {                        System.out.println(start());                    }                }, 5000, 5000);            } catch (Exception e) {            }        }    }        public static boolean start() {        try{            zk = new ZkClient(zk_cluster,zk_timeout);            List<String> brokers = zk.getChildren(DIR_SIGN+ROOT_NAME+DIR_SIGN+"ids");            if(null != brokers){                for(int i = 0 ;i<brokers.size();i++){                    System.out.println(brokers);                                    }            }            zk.close();            return checkChildens();        }catch (Exception e) {           return false;        }    }        public static boolean checkChildens(){            return true;    }    }

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