apache zookeeper java_Java实现与ZooKeeper的连接

本文展示了如何使用 ZooKeeper 的 Java API 进行客户端连接配置及操作,包括读取环境变量、建立连接、创建节点及数据读取等基本功能,并解决了中文字符集问题。

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最后运行结果:

2013-01-16 15:26:04:INFO org.apache.zookeeper.ZooKeeper - Client environment:user.name=Administrator

2013-01-16 15:26:04:INFO org.apache.zookeeper.ZooKeeper - Client environment:user.home=C:\Documents and Settings\Administrator

2013-01-16 15:26:04:INFO org.apache.zookeeper.ZooKeeper - Client environment:user.dir=D:\workspace\stormdemo1

2013-01-16 15:26:04:INFO org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=192.168.0.138 sessionTimeout=2000 watcher=com.zoo.demo.ZooKeeperOperator@ca8327

2013-01-16 15:26:04:INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server /192.168.0.138:2181

2013-01-16 15:26:13:INFO org.apache.zookeeper.ClientCnxn - Socket connection established to 192.168.0.138/192.168.0.138:2181, initiating session

2013-01-16 15:26:13:INFO org.apache.zookeeper.ClientCnxn - Session establishment complete on server 192.168.0.138/192.168.0.138:2181, sessionid = 0x13c3c5224cc0003, negotiated timeout = 4000

2013-01-16 15:26:13:DEBUG com.zoo.demo.ZooKeeperOperator - 获取设置的信息:ZooKeeper的Java API测试

节点孩子信息:

2013-01-16 15:26:13:DEBUG com.zoo.demo.ZooKeeperOperator - /root中存在节点

2013-01-16 15:26:13:DEBUG com.zoo.demo.ZooKeeperOperator - 节点为:child1

2013-01-16 15:26:13:DEBUG com.zoo.demo.ZooKeeperOperator - 节点为:child3

2013-01-16 15:26:13:DEBUG com.zoo.demo.ZooKeeperOperator - 节点为:child2

2013-01-16 15:26:13:INFO org.apache.zookeeper.ZooKeeper - Session: 0x13c3c5224cc0003 closed

2013-01-16 15:26:13:INFO org.apache.zookeeper.ClientCnxn - EventThread shut down

147a53f204803a5c7a674cce0a9aad97.png

针对出现的中文乱码看采用下面的处理即可:

String zktest="ZooKeeper的Java API测试";

zkoperator.create("/root/child5", zktest.getBytes("utf-8"));

            log.debug("获取设置的信息:"+new String(zkoperator.getData("/root/child5"),"utf-8"));0b1331709591d260c1c78e86d0c51c18.png

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