Springboot中data-redis中zSet的用法（redisTemplate）

1、add(K key, V value, double score)
向指定key中添加元素，按照score值由小到大进行排列

集合中对应元素已存在，会被覆盖，包括score
redisTemplate.opsForZSet().add("zSet", "aaa", 1);
redisTemplate.opsForZSet().add("zSet", "bbb", 2);
redisTemplate.opsForZSet().add("zSet", "ccc", 3);

2、add(K key, Set<TypedTuple> tuples)
向指定key中添加元素，按照score值由小到大进行排列

集合中对应元素已存在，会被覆盖，包括score
ZSetOperations.TypedTuple<String> objectTypedTuple1 = new DefaultTypedTuple<>("eee",9.6);
ZSetOperations.TypedTuple<String> objectTypedTuple2 = new DefaultTypedTuple<>("fff",1.5);
ZSetOperations.TypedTuple<String> objectTypedTuple3 = new DefaultTypedTuple<>("ggg",7.4);
Set<ZSetOperations.TypedTuple<String>> typles = new HashSet<>();
typles.add(objectTypedTuple1);
typles.add(objectTypedTuple2);
typles.add(objectTypedTuple3);
redisTemplate.opsForZSet().add("zSet", typles);

3、incrementScore(K key, V v1, double delta)
增加key对应的集合中元素v1的score值，并返回增加后的值

v1不存在，直接新增一个元素

4、score(K key, Object o)
获取key对应集合中o元素的score值

Double score = redisTemplate.opsForZSet().score("zSet", "aaa");
System.out.println("score = " + score);

5、size(K key)
获取集合的大小，地层调用的还是 zCard(K key)

Long zSet = redisTemplate.opsForZSet().size("zSet");
System.out.println("zSet = " + zSet);

6、zCard(K key)
获取集合大小

Long zSet = redisTemplate.opsForZSet().zCard("zSet");
System.out.println("zSet = " + zSet);

7、count(K key, double min, double max)
获取指定score区间里的元素个数

包括min、max
8、range(K key, long start, long end)
获取指定下标之间的值

(0,-1)就是获取全部
Set zSet = redisTemplate.opsForZSet().range("zSet", 0, 2);
System.out.println("zSet = " + zSet);

9、rangeByScore(K key, double min, double max)
获取指定score区间的值

Set zSet = redisTemplate.opsForZSet().rangeByScore("zSet", 1, 5);
System.out.println("zSet = " + zSet);

10、rangeByScore(K key, double min, double max, long offset, long count)
获取指定score区间的值，然后从给定下标和给定长度获取最终值

Set zSet = redisTemplate.opsForZSet().rangeByScore("zSet", 1, 5, 1, 2);
System.out.println("zSet = " + zSet);

11、rank(K key, Object o)
获取指定元素在集合中的索引，索引从0开始

Long rank = redisTemplate.opsForZSet().rank("zSet", "aaa");
System.out.println("rank = " + rank);

12、reverseRank(K key, Object o)
获取倒序排列的索引值，索引从0开始

Long rank = redisTemplate.opsForZSet().reverseRank("zSet", "eee");
System.out.println("rank = " + rank);

13、reverseRange(K key, long start, long end)
逆序获取对应下标的元素

Set zSet = redisTemplate.opsForZSet().reverseRange("zSet", 0, 3);
System.out.println("zSet = " + zSet);

14、remove(K key, Object… values)
移除集合中指定的值

Long remove = redisTemplate.opsForZSet().remove("zSet", "aaa", "bbb");
System.out.println("remove = " + remove);

15、removeRange(K key, long start, long end)
移除指定下标的值

redisTemplate.opsForZSet().removeRange("zSet", 0, 1);

16、removeRangeByScore(K key, double min, double max)
移除指定score区间内的值

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