redis-helloWorld

1新建项目，导入jar包，commons-pool2-2.4.2.jar，jedis_2.9.0.jar

2.代码部分

package cn.sp.redis;

import java.util.HashSet;
import java.util.Set;

import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisCluster;
import redis.clients.jedis.JedisPool;

public class RedisTest {
	/**
	 * 单机版
	 */
	public static void testJedisSingle(){
		Jedis jedis = new Jedis("192.168.75.128",6379);//192.168.75.128
		jedis.set("aa","hello redis");
		String result = jedis.get("aa");
		System.out.println(result);
		//关闭
		jedis.close();
	}
	
	
	/**
	 * 使用连接池
	 */
	public static void testJedisPool()throws Exception{
		//创建一个连接池对象
		//系统中应该是单例的。
		JedisPool jedisPool = new JedisPool("192.168.75.128", 6379);
		//从连接池中获得一个连接
		Jedis jedis = jedisPool.getResource();
		String result = jedis.get("aa");
		System.out.println(result);
		//jedis必须关闭
		jedis.close();
			
		//系统关闭时关闭连接池
		jedisPool.close();
	}
	
	/**
	 * redis集群
	 * @throws Exception
	 */
	public static void testJedisCluster()throws Exception{
		Set<HostAndPort> nodes = new HashSet<>();
		nodes.add(new HostAndPort("192.168.75.128",7001));
		nodes.add(new HostAndPort("192.168.75.128",7002));
		nodes.add(new HostAndPort("192.168.75.128",7003));
		nodes.add(new HostAndPort("192.168.75.128",7004));
		nodes.add(new HostAndPort("192.168.75.128",7005));
		JedisCluster jedisCluster = new JedisCluster(nodes);
		jedisCluster.set("bb", "123");
		String result = jedisCluster.get("bb");
		System.out.println(result);
		//系统关闭时关闭jedisCluster
		jedisCluster.close();
	}
	
	public static void main(String[] args) throws Exception {
		testJedisPool();
	}
}