Hazelcast-demo

文献: https://yanbin.blog/hazelcast-introduction/

  1. queue类型,点对点,只能一台机消费,可能要改配置,暂未知
  2. 客户端修改集群数据,文档说不能修改,现修改成功,暂未知
  3. 默认配置是什么样?
 <!--hazelcast 缓存-->
        <dependency>
            <groupId>com.hazelcast</groupId>
            <artifactId>hazelcast</artifactId>
            <version>3.11.4</version>
        </dependency>
        <dependency>
            <groupId>com.hazelcast</groupId>
            <artifactId>hazelcast-client</artifactId>
            <version>3.11.4</version>
        </dependency>
package com.example.demojar.controller;

import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import java.util.List;
import java.util.Map;
import java.util.Queue;

public class HazelcastMaster {
    public static void main(String[] args) {
        //Map、Queue、MultiMap、Set、List、Semaphore、Atomic 等接口

        HazelcastInstance hazelcastInstance = Hazelcast.newHazelcastInstance();
        //创建map类型
        Map<String, Object> myMap = hazelcastInstance.getMap("myMap");
        myMap.put("key1","集群map");

        //创建queue类型,点对点,只能一台机消费,可能要改配置,暂未知
        Queue<Object> myQueue = hazelcastInstance.getQueue("myQueue");
        myQueue.offer("Holle hazelcast");
        myQueue.offer("Holle hazelcast queue");

        //创建list类型
        List<String> myList = hazelcastInstance.getList("myList");
        myList.add("list类型数据1");
        myList.add("list类型数据2");
        myList.add("list类型数据3");
    }
}

package com.example.demojar.controller;

import com.alibaba.fastjson.JSON;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;

import java.util.List;
import java.util.Map;
import java.util.Queue;

public class HazelcastSlave {
    public static void main(String[] args) {
        //创建一个 hazelcastInstance实例
        HazelcastInstance instance = Hazelcast.newHazelcastInstance();
        Map<String, Object> clusterMap = instance.getMap("myMap");
        Queue<Object> clusterQueue = instance.getQueue("myQueue");
        
        System.out.println("Map Value:" + clusterMap.get("key1"));
        System.out.println("Queue Size :" + clusterQueue.size());
        System.out.println("Queue Value 1:" + clusterQueue.poll());
        System.out.println("Queue Value 2:" + clusterQueue.poll());
        System.out.println("Queue Size :" + clusterQueue.size());
        //获取list类型
        List<String> myList = instance.getList("myList");
        System.out.println(JSON.toJSONString(myList));
    }
}
package com.example.demojar.controller;

import com.alibaba.fastjson.JSON;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.core.HazelcastInstance;

import java.util.List;
import java.util.Map;
import java.util.Queue;

public class HazelcastClientDemo {
    public static void main(String[] args) {
        ClientConfig clientConfig = new ClientConfig();
        HazelcastInstance instance = com.hazelcast.client.HazelcastClient.newHazelcastClient(clientConfig);
        //获取map类型
        Map<String, Object> clusterMap = instance.getMap("myMap");
        //客户端修改集群数据,文档说不能修改,现修改成功暂未知
        clusterMap.put("key1","客户端put数据");
        //获取queue类型
        Queue<String> clusterQueue = instance.getQueue("myQueue");

        System.out.println("Map Value:" + clusterMap.get("key1"));
        System.out.println("Queue Size :" + clusterQueue.size());
        System.out.println("Queue Value 1:" + clusterQueue.poll());
        System.out.println("Queue Value 2:" + clusterQueue.poll());
        System.out.println("Queue Size :" + clusterQueue.size());

        //获取list类型
        List<String> myList = instance.getList("myList");
        System.out.println(JSON.toJSONString(myList));

    }
}
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