public override async Task process(WatchedEvent @event)
{
Console.WriteLine($"Zookeeper链接成功:{@event.getState() == KeeperState.SyncConnected}");
if (@event.get_Type() == EventType.NodeDataChanged)
{
var data = await _cs.ReadConfigDataAsync();
Console.WriteLine("{0}收到修改此节点【{1}】值的通知，其值已被改为【{2}】。", Environment.NewLine, _cs.QueryPath, data);
}
}
static async Task Main(string[] args)
{
var conf = new ZookeeperClient("127.0.0.1:2181", 1000);
try
{
var sessionid = conf.ZK.getSessionId();
var sessionPassword = conf.ZK.getSessionPasswd();
Console.WriteLine(sessionid);
Console.WriteLine(Encoding.UTF8.GetString(sessionPassword));
Console.WriteLine("客户端开始连接zookeeper服务器...");
Console.WriteLine($"连接状态：{conf.ZK.getState()}");
Thread.Sleep(1000);//注意：为什么要加上这行代码，如果不加会出现什么问题
Console.WriteLine($"连接状态：{conf.ZK.getState()}");
Console.WriteLine("开始会话重连");
if (await conf.ZK.existsAsync(conf.QueryPath, false) == null)
{
conf.ConfigData = Encoding.Default.GetBytes("guozheng");
await conf.ZK.createAsync(conf.QueryPath, conf.ConfigData, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
string configData = await conf.ReadConfigDataAsync();
Console.WriteLine("节点【{0}】目前的值为【{1}】。", conf.QueryPath, configData);
Console.ReadLine();
Random random = new Random((int)DateTime.Now.Ticks & 0x0000FFFF);
conf.ConfigData = Encoding.UTF8.GetBytes(string.Format("Mike_{0}", random.Next(100)));
await conf.ZK.setDataAsync(conf.QueryPath, conf.ConfigData, -1);
Console.WriteLine("节点【{0}】的值已被修改为【{1}】。", conf.QueryPath, Encoding.UTF8.GetString(conf.ConfigData));
Console.ReadLine();
if (await conf.ZK.existsAsync(conf.QueryPath, false) != null)
{
await conf.ZK.deleteAsync(conf.QueryPath, -1);
Console.WriteLine("已删除此【{0}】节点。{1}", conf.QueryPath, Environment.NewLine);
}
Console.WriteLine("测试完成");
Console.ReadKey();
}
catch (Exception ex)
{
if (conf.ZK == null)
{
Console.WriteLine("已关闭ZooKeeper的连接。");
Console.ReadLine();
return;
}
Console.WriteLine("抛出异常：{0}【{1}】。", Environment.NewLine, ex.ToString());
}
finally
{
await conf.Close();
Console.WriteLine("已关闭ZooKeeper的连接。");
Console.ReadLine();
}
}
