Use jedis redis-cluster connections for presentation set data structure api

Following previous use jedis connection redis-cluster structure were zset data api demo
fifth chapter after. This chapter explains the use of jedis be connected redis-cluster structure api demo data set.

package com.coderman.jedis.clusterdemo;

import com.alibaba.fastjson.JSON;
import org.junit.Test;

import java.util.Set;

/**
 * @Author fanchunshuai
 * @Date 2020/1/3 18
 * @Description:
 * set api测试
 */
public class SetAPITest extends ClusterTest{
    /**
     * 重复运行两遍
     * 添加集合元素
     */
    @Test
    public void testAddSet(){
        //用户1认识的朋友
        String key = "user:1:friends";
        String [] members = new String[10];
        members[0]= "zhangsna";
        members[1]= "lisi";
        for (int i = 2;i < 10;i++){
            members[ i ]= "wangwu"+i;
        }
        Long res = cluster.sadd(key,members);
        //第一次运行返回10，第二次运行没有插入元素返回0
        System.out.println("res = "+res);
    }

    /**
     * 获取所有集合
     */
    @Test
    public void testSearhSet(){
        String key = "user:1:friends";
        Set<String> set = cluster.smembers(key);
        System.out.println(JSON.toJSONString(set));
    }

    /**
     * 获取集合元素大小
     */
    @Test
    public void testGetSsize(){
        String key = "user:1:friends";
        Long size = cluster.scard(key);
        System.out.println("size = "+size);
    }


    /**
     * 判断某元素是否在集合中
     */
    @Test
    public void testIsInSet(){
        String key = "user:1:friends";
        boolean b = cluster.sismember(key,"zhangsanfeng");
        System.out.println("b = " + b);
    }


    /**
     * redis差集运算
     * No way to dispatch this command to Redis Cluster because keys have different slots
     */
    @Test
    public void testSetDiff(){
        String key1 = "user:1:friends";

        //用户1认识的朋友
        String key2 = "user:2:friends";
        String [] members = new String[2];
        members[0]= "zhangsna";
        members[1]= "lisi";
        cluster.sadd(key2,members);
        Set<String> dif1Set = cluster.sdiff(new String[]{key1,key2});
        System.out.println("dif1Set = "+JSON.toJSONString(dif1Set));
        Set<String> dif2Set = cluster.sdiff(new String[]{key2,key1});
        System.out.println("dif2Set = "+JSON.toJSONString(dif2Set));
    }

}