zookeeper springboot怎样实现资源管理

在Spring Boot中使用Apache ZooKeeper进行资源管理，可以通过以下步骤实现：

1. 添加依赖

在pom.xml文件中添加ZooKeeper和Spring Boot相关依赖：

    
    
        org.springframework.boot
        spring-boot-starter-data-zookeeper
    
    
    
        org.apache.zookeeper
        zookeeper
        3.7.0
    

2. 配置ZooKeeper连接

在application.yml或application.properties文件中配置ZooKeeper连接信息：

spring:
  zookeeper:
    host: localhost:2181
    session-timeout: 3000

3. 创建ZooKeeper配置类

创建一个配置类，用于初始化ZooKeeper的CuratorFramework实例：

import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class ZooKeeperConfig {

    @Value("${spring.zookeeper.host}")
    private String zookeeperHost;

    @Bean
    public CuratorFramework curatorFramework() {
        return CuratorFrameworkFactory.builder()
                .connectString(zookeeperHost)
                .sessionTimeoutMs(3000)
                .retryPolicy(new ExponentialBackoffRetry(1000, 3))
                .build();
    }
}

4. 创建资源管理接口和实现类

定义一个资源管理接口，用于操作ZooKeeper中的节点：

public interface ResourceManagement {
    void createNode(String path);
    void deleteNode(String path);
    String readNode(String path);
}

实现该接口，使用CuratorFramework实例进行节点操作：

import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.recipes.cache.NodeCache;
import org.apache.curator.framework.recipes.cache.NodeCacheListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class ResourceManagementImpl implements ResourceManagement {

    @Autowired
    private CuratorFramework curatorFramework;

    @Override
    public void createNode(String path) {
        if (curatorFramework.checkExists().forPath(path) == null) {
            curatorFramework.create().creatingParentsIfNeeded().forPath(path);
        }
    }

    @Override
    public void deleteNode(String path) {
        if (curatorFramework.checkExists().forPath(path) != null) {
            curatorFramework.delete().deletingChildrenIfNeeded().forPath(path);
        }
    }

    @Override
    public String readNode(String path) {
        if (curatorFramework.checkExists().forPath(path) != null) {
            return curatorFramework.getData().forPath(path);
        }
        return null;
    }
}

5. 使用资源管理接口

在你的服务类中，注入ResourceManagement接口，并使用它进行资源管理：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class MyService {

    @Autowired
    private ResourceManagement resourceManagement;

    public void useResource() {
        // 创建节点
        resourceManagement.createNode("/myNode");

        // 读取节点数据
        String data = https://www.yisu.com/ask/resourceManagement.readNode("/myNode");
        System.out.println("Node data: " + data);

        // 删除节点
        resourceManagement.deleteNode("/myNode");
    }
}

通过以上步骤，你可以在Spring Boot应用中使用ZooKeeper进行资源管理。