<dependency>
  <groupId>org.apache.commons</groupId>
  <artifactId>commons-pool2</artifactId>
  <version>2.6.2</version>
</dependency>
 
<dependency>
  <groupId>redis.clients</groupId>
  <artifactId>jedis</artifactId>
  <version>3.0.1</version>
</dependency>
 
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-api</artifactId>
  <version>1.7.26</version>
</dependency>
 
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-simple</artifactId>
  <version>1.7.26</version>
  <scope>test</scope>
</dependency>

package Main;
import java.io.IOException;
import java.util.LinkedHashSet;
import java.util.Set;
import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisCluster;
import redis.clients.jedis.JedisPoolConfig;
@SuppressWarnings("all")
public class RedisMain {
   public static void main(String[] args) {
     JedisCluster cluster =null;
     try {       
        Set<HostAndPort> nodes = new LinkedHashSet<HostAndPort>();
        //一般選用slaveof從IP+端口進行增刪改查，不用master
        nodes.add(new HostAndPort("外網IP", 7003));
        nodes.add(new HostAndPort("外網", 7004));
        nodes.add(new HostAndPort("外網IP", 7004));
        // Jedis連接池配置
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        // 最大空閑連接數, 默認8個
        jedisPoolConfig.setMaxIdle(100);
        // 最大連接數, 默認8個
        jedisPoolConfig.setMaxTotal(500);
        //最小空閑連接數, 默認0
        jedisPoolConfig.setMinIdle(0);
        // 獲取連接時的最大等待毫秒數(如果設置為阻塞時BlockWhenExhausted),如果超時就拋異常, 小于零:阻塞不確定的時間, 默認-1
        jedisPoolConfig.setMaxWaitMillis(2000); // 設置2秒
        //對拿到的connection進行validateObject校驗
        jedisPoolConfig.setTestOnBorrow(true);
        //未設置auth Password
        JedisCluster jedis = new JedisCluster(nodes, jedisPoolConfig);
        //設置auth Password
        //JedisCluster jedis = new JedisCluster(nodes,5000,3000,10,{auth_password}, new JedisPoolConfig());
        System.out.println(jedis.get("mykey"));       
     }catch(Exception e) {
       e.printStackTrace();
     }finally {
       if(null !=cluster)
         cluster.close();
     }
   }
}