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redis's Introduction

Redis提供键值对的形式对数据进行存储。支持五种数据类型:String(字符串),List(链表),Hash(散列),Set(无序集合),ZSet(有序集合)。

结构类型 结构存储的值 结构的读写能力
String 可以是字符串、整数或者浮点数 对整个字符串或者字符串的其中一部分执行操作;对象和浮点数执行 自增(increment)或者自减(decrement)
List 一个链表,链表上的每个节点都包含了一个字符串 从链表的两端推入或者弹出元素;根据偏移量对链表进行修剪(trim);读取单个或者多个元素;根据值来查找或者移除元素
Hash 包含键值对的无序散列表 添加、获取、移除单个键值对;获取所有键值对
Set 包含字符串的无序收集器(unorderedcollection),并且被包含的每个字符串都是独一无二的、各不相同 添加、获取、移除单个元素;检查一个元素是否存在于某个集合中;计算交集、并集、差集;从集合里卖弄随机获取元素
ZSet 字符串成员(member)与浮点数分值(score)之间的有序映射,元素的排列顺序由分值的大小决定 添加、获取、删除单个元素;根据分值范围(range)或者成员来获取元素

对于JAVA语言,我们之前使用Jedis对redis进行基本的指令操作,随着Spring对Jedis进行了很好的封装之后,使用Spring-Data-Redis包对redis的操作变得更加简单和方便。而Spring-Data-Redis则是通过RedisTemplate对象来操作Redis的五种数据结构。

CSDN:https://blog.csdn.net/weixin_37490221/article/details/78134105

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