127.0.0.1:6379> FLUSHDB
OK
127.0.0.1:6379> SADD set1 v1 v2 v3 v4 v5 v6
(integer) 6
127.0.0.1:6379> SADD set2 v0 v2 v4 v6 v8
(integer) 5
127.0.0.1:6379> SCARD set1
(integer) 6
127.0.0.1:6379> SDIFF set1 set2
1) "v5"
2) "v1"
3) "v3"
127.0.0.1:6379> SINTER set1 set2
1) "v4"
2) "v6"
3) "v2"
127.0.0.1:6379> SISMEMBER set2 v2
(integer) 1
127.0.0.1:6379> SISMEMBER set1 v2
(integer) 1
127.0.0.1:6379> SISMEMBER set v2
(integer) 0
127.0.0.1:6379> SMEMBERS set2
1) "v4"
2) "v8"
3) "v6"
4) "v0"
5) "v2"
127.0.0.1:6379> SPOP set1
"v5"
127.0.0.1:6379> SMEMBERS set1
1) "v4"
2) "v6"
3) "v1"
4) "v2"
5) "v3"
127.0.0.1:6379> SRANDMEMBER set1 2
1) "v4"
2) "v3"
127.0.0.1:6379> SREM set1 v1
(integer) 1
127.0.0.1:6379> SMEMBERS set1
1) "v4"
2) "v6"
3) "v2"
4) "v3"
127.0.0.1:6379> SUNION set1 set2
1) "v4"
2) "v8"
3) "v6"
4) "v0"
5) "v2"
6) "v3"
127.0.0.1:6379> SMEMBERS set1
1) "v4"
2) "v6"
3) "v2"
4) "v3"
127.0.0.1:6379> SMEMBERS set2
1) "v4"
2) "v8"
3) "v6"
4) "v0"
5) "v2"
127.0.0.1:6379> 

package com.artisan.redis.baseStructure.set;
import java.util.List;
import java.util.Set;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.data.redis.core.RedisTemplate;
/**
 * 
 * 
 * @ClassName: SpringRedisSetDemo
 * 
 * @Description: 记得将 RedisTemplate 值序列化器设置为 StringRedisSerializer 然后运行该代码
 * 
 * @author: Mr.Yang
 * 
 * @date: 2018年9月26日 下午3:22:57
 */
public class SpringRedisSetDemo {
  private static final String SET1 = "set1";
  private static final String SET2 = "set2";
  public static void main(String[] args) {
    ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:spring/spring-redis-set.xml");
    RedisTemplate<String, String> redisTemplate = (RedisTemplate<String, String>) ctx.getBean("redisTemplate");
    Set<String> set = null;
    // 127.0.0.1:6379> FLUSHDB
    // OK
    // 127.0.0.1:6379> SADD set1 v1 v2 v3 v4 v5 v6
    // (integer) 6
    // 127.0.0.1:6379> SADD set2 v0 v2 v4 v6 v8
    // (integer) 5
    // 将元素加入列表
    redisTemplate.boundSetOps(SET1).add("v1", "v2", "v3", "v4", "v5", "v6");
    redisTemplate.boundSetOps(SET2).add("v0", "v2", "v4", "v6", "v8");
    // 127.0.0.1:6379> SCARD set1
    // (integer) 6
    // 求集合长度
    System.out.println(SET1 + "的长度为：" + redisTemplate.opsForSet().size(SET1));
    System.out.println(SET2 + "的长度为：" + redisTemplate.opsForSet().size(SET2));
    // 127.0.0.1:6379> SDIFF set1 set2
    // 1) "v5"
    // 2) "v1"
    // 3) "v3"
    // 求差集
    set = redisTemplate.opsForSet().difference(SET1, SET2);
    scanSet(set);
    // 求并集
    set = redisTemplate.opsForSet().intersect(SET1, SET2);
    scanSet(set);
    // 判断是否是集合中的元素
    boolean exist = redisTemplate.opsForSet().isMember(SET1, "v1");
    System.out.println(SET1 + "中存在v1:" + exist);
    // 获取集合所有元素
    set = redisTemplate.opsForSet().members(SET1);
    scanSet(set);
    set = redisTemplate.opsForSet().members(SET2);
    scanSet(set);
    // 从集合中随机弹出一个元素,集合中会删除该元素
    String randomValue = redisTemplate.opsForSet().pop(SET2);
    System.out.println(SET2 + "中弹出的随机元素为" + randomValue);
    System.out.println(SET2 + "的长度为：" + redisTemplate.opsForSet().size(SET2));
    // 随机获取一个集合的元素 ,该元素仍然在集合中
    randomValue = (String) redisTemplate.opsForSet().randomMember(SET1);
    System.out.println(randomValue);
    System.out.println(SET1 + "的长度为：" + redisTemplate.opsForSet().size(SET1));
    System.out.println("------------");
    // 随机获取集合中 的4 个元素
    List<String> list = redisTemplate.opsForSet().randomMembers(SET1, 4);
    for (String string : list) {
      System.out.println(string);
    }
    // 删除一个集合的元素，参数可以是多个
    Long value = redisTemplate.opsForSet().remove(SET1, "v1", "v2");
    System.out.println(SET1 + "中删除了" + value + "个元素");
    System.out.println(SET1 + "的长度为：" + redisTemplate.opsForSet().size(SET1));
    // 求两个集合的并集
    set = redisTemplate.opsForSet().union(SET1, SET2);
    scanSet(set);
    // 求两个集合的差集，并保存到集合 diff_set 中
    redisTemplate.opsForSet().differenceAndStore(SET1, SET2, "diff_set");
    scanSet(redisTemplate.opsForSet().members("diff_set"));
    // 求两个集合的交集，并保存到集合 inter_set 中
    redisTemplate.opsForSet().intersectAndStore(SET1, SET2, "inter_set");
    scanSet(redisTemplate.opsForSet().members("inter_set"));
    // 求两个集合的并集，并保存到集合 union_set 中
    redisTemplate.opsForSet().unionAndStore(SET1, SET2, "union_set");
    scanSet(redisTemplate.opsForSet().members("union_set"));
  }
  private static void scanSet(Set<String> set) {
    for (String value : set) {
      System.out.println(value);
    }
    System.out.println("----------------");
  }
}