import redis.clients.jedis.Jedis;
import java.util.Random;

public class SetPlayer {
    private static Jedis jedis = new Jedis("192.168.88.130",6379);

    public static void main(String[] args) throws InterruptedException {
        String[] players = {"唐僧","孙悟空","八戒","沙僧"};
        while (true){
            int index = new Random().nextInt(players.length);
            String player = players[index];
            Thread.sleep(3000);
            //player选到一次，score自动增加1，第一次出现，会创建该player
            jedis.zincrby("playerinfo",1,player);
            System.out.println(player+" is on");
        }
    }
}
/*
孙悟空 is on
沙僧 is on
唐僧 is on
孙悟空 is on
八戒 is on
孙悟空 is on
唐僧 is on
孙悟空 is on
 */

打印：

import redis.clients.jedis.Jedis;
import redis.clients.jedis.Tuple;

import java.util.Set;
public class SetViewer {
    private static Jedis jedis = new Jedis("192.168.88.130",6379);

    public static void main(String[] args) throws InterruptedException {
        int i=1;
        while (true){
            Thread.sleep(5000);

            Set<Tuple> plays = jedis.zrevrangeWithScores("playerinfo",0,2);
            for(Tuple t:plays){
                System.out.println(t.getElement()+"---------"+t.getScore());
            }
            i++;
            System.out.println(i+"次结果");
        }
    }
}
/*
沙僧---------1.0
孙悟空---------1.0
唐僧---------1.0
2次结果
孙悟空---------2.0
沙僧---------1.0
唐僧---------1.0
3次结果
孙悟空---------3.0
沙僧---------1.0
唐僧---------1.0
4次结果
 */