(1)添加依赖,在pom.xml文件中添加zookeeper依赖:
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(2)连接zookeeper服务,创建cn.itcast.zookeeper包,在该包中创建ZooKeeperDemo类,该类用于实现创建会话和操作ZooKeeper,在类中创建main()和getConnect()方法,getConnect()方法用于实现指定ZooKeeper服务创建会话,代码及运行结果如下:
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(3)使用create()方法创建ZNode,在ZooKeeperDemo类中创建createNode()方法,用于创建持久节点zkapi,并且在持久节点zkapi中挂载子节点zkchild,该子节点的ZNode类型为持久节点,diamagnetic如下:
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修改ZooKeeperDemo类中的main()方法,代码如下:
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运行结果如下,递归查看根目录下的节点:
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(4)使用exists()方法普安段ZNode是否存在,代码如下:
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main()方法修改后如下:
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运行结果如下:
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(5)在ZooKeeperDemo类中创建getNode()方法,该方法用于获取持久节点zkapi的数据内容,getNode()方法的代码如下:
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Main()方法修改如下:
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运行结果:
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(6)在ZooKeeperDemo类中创建updateNode()方法,该方法用于将持久节点zkapi的数据内容修改为fruit_new,代码如下:
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Main()方法修改如下:
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运行结果:
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(7)在ZooKeeperDemo类中创建getChildNode()方法,该方法用于查看持久节点zkapi的子节点列表,代码如下:
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Main()方法修改如下:
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运行结果如下:
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(8)在类ZooKeeperDemo中创建deleteNode()方法,该方法用于删除持久节点zkapi的子节点zkchild,代码如下:
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Main()方法修改如下:
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运行结果:
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