一、Zookeeper原生API如何进行调用准备工作：首先在新建一个maven项目ZK-Demo,然后在pom.xml里面引入zk的依赖 <dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.4.10</version></dependency>1. 连接zk并监听事件package com.study.demo.zk;import java.io.IOException; import java.util.concurrent.CountDownLatch;import org.apache.zookeeper.WatchedEvent; import org.ap...
现在将网上的方法总结一下方法一：.https://blog.csdn.net/u011294519/article/details/81810631dubbo-provider.xml:提供者先扫描spring框架，完成spring部分的扫描，然后将为dubbo框架提供服务；消费者部分相反，先扫描dubbo服务，后扫描spring部分~1. 背景 使用@Reference注解实现消费者调用服务端代码，调用报错NullPointerException，如图： 注意：如果你的服务端没有注册到dubbo，客户端在调用时也会出现NullPointerExc...
import java.io.IOException; import java.security.NoSuchAlgorithmException; import java.util.ArrayList; import java.util.List; import org.apache.zookeeper.CreateMode; import org.apache.zookeeper.KeeperException; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher; import org.apache.zookeeper.ZooDefs; import org.apache.zookeeper.ZooDefs.Ids; import org.apache.zookeeper.ZooK...
上篇讲了服务提供方暴露出对应的接口后，以及在zookeeper中创建了provider节点，https://blog.csdn.net/qq_38340127/article/details/112698774接下来继续服务调用方调试。 xml配置 <?xml version="1.0" encoding="UTF-8"?> <!--Licensed to the Apache Software Foundation (ASF) under one or morecontributor license agreements. See the NOTICE file distributed withthis work for additional information regarding copyri...
import java.io.IOException; import java.security.NoSuchAlgorithmException; import java.util.ArrayList; import java.util.List; import org.apache.zookeeper.CreateMode; import org.apache.zookeeper.KeeperException; import org.apache.zookeeper.WatchedEvent; import org.apache.zookeeper.Watcher; import org.apache.zookeeper.ZooDefs; import org.apache.zookeeper.ZooDefs.Ids; import org.apache.zookeeper.ZooK...
注册方法 NodeCreated NodeChildrenChanged NodeDataChanged NodeDeletedzk.getChildren可监控可监控zk.exists 可监控可监控 可监控zk.getData可监控 可监控zk.getData不能监听NodeCreated事件，节点不存在时，getData这样设置的监听会抛出异常，注册失败