zk的服务发现有问题 about nettyrpc HOT 3 CLOSED

public static void main(String[] args) {
	// TODO Auto-generated method stub
	ServiceDiscovery serviceDiscovery = new ServiceDiscovery("127.0.0.1:2181");
	final RpcClient rpcClient = new RpcClient(serviceDiscovery);
	int i = 100;
	while (true) {
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			long startTime = System.currentTimeMillis();
			System.out.println("调用 ");
			final HelloService syncClient = rpcClient.create(HelloService.class);
			String result = syncClient.hello("asa");
			System.out.printf("%s --s \n", (System.currentTimeMillis() - startTime));
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}