redis_命令

忘是亡心i 2022-05-25 08:50 127阅读 0赞

注：命令不区分大小写

可参考资源：[http://doc.redisfans.com/][http_doc.redisfans.com]

基本操作

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>Select</td> 
 <td>选择数据库（索引）</td> 
 <td>Select 2</td> 
 </tr> 
 <tr> 
 <td>dbsize</td> 
 <td>当前库的key个数</td> 
 <td>dbsize</td> 
 </tr> 
 <tr> 
 <td>Flushdb</td> 
 <td>清空当前库</td> 
 <td>Flushdb&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</td> 
 </tr> 
 <tr> 
 <td>Flushall</td> 
 <td>清空所有库</td> 
 <td>Flushall</td> 
 </tr> 
 <tr> 
 <td>Save</td> 
 <td>将内存数据保存到文件（如果内存数据大，会导致卡死）</td> 
 <td>save&nbsp;</td> 
 </tr> 
 <tr> 
 <td>bgsave</td> 
 <td>开新子进程异步将内存数据保存到文件</td> 
 <td>Bgsave</td> 
 </tr> 
 </tbody> 
</table>

1. Key-value值

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>set</td> 
 <td>添加值</td> 
 <td>set gary&nbsp;99</td> 
 </tr> 
 <tr> 
 <td>mset</td> 
 <td>批量添加值</td> 
 <td>mset zhangsan 80 lisi 85</td> 
 </tr> 
 <tr> 
 <td>append </td> 
 <td>在结果追加</td> 
 <td>set zhangsanAddress beijingappend zhangsanAddress -chaoyangqu</td> 
 </tr> 
 <tr> 
 <td>get</td> 
 <td>获取key值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114139370" alt=""></td> 
 </tr> 
 <tr> 
 <td>mget</td> 
 <td>批量获取值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114146923" alt=""></td> 
 </tr> 
 <tr> 
 <td>incr</td> 
 <td>值增1</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114155642" alt=""></td> 
 </tr> 
 <tr> 
 <td>decr</td> 
 <td>值减1</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114201779" alt=""></td> 
 </tr> 
 <tr> 
 <td>incrby key num</td> 
 <td>值增加num</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114209181" alt=""></td> 
 </tr> 
 <tr> 
 <td>decrby key num</td> 
 <td>值减num</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114215143" alt=""></td> 
 </tr> 
 <tr> 
 <td>Del</td> 
 <td>删除某一key</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114221487" alt=""></td> 
 </tr> 
 </tbody> 
</table>

2. 列表

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>lpush </td> 
 <td>从列表左侧添加数据</td> 
 <td>lpush list1 a b clpush list1 1 2</td> 
 </tr> 
 <tr> 
 <td>Lrange</td> 
 <td>读取列表 0 -1：表示读取所有2 4：表示下标从2到4</td> 
 <td>&nbsp;&nbsp;<img src="https://img-blog.csdn.net/20180511114249267" alt=""><img src="https://img-blog.csdn.net/20180511114300247" alt=""></td> 
 </tr> 
 <tr> 
 <td> Lset</td> 
 <td>修改列表某一下标的值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114448443" alt=""></td> 
 </tr> 
 <tr> 
 <td>lpop</td> 
 <td>从列表左侧取出一个值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114454348" alt=""></td> 
 </tr> 
 <tr> 
 <td>rpush</td> 
 <td>从列表右侧添加值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114500884" alt=""></td> 
 </tr> 
 <tr> 
 <td>rpop</td> 
 <td>从列表右侧取出一个值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114510230" alt=""></td> 
 </tr> 
 </tbody> 
</table>

3. 哈希表

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>Hset</td> 
 <td>添加哈希表元素</td> 
 <td>&nbsp;&nbsp;<img src="https://img-blog.csdn.net/20180511114538855" alt=""><img src="https://img-blog.csdn.net/20180511114545111" alt=""></td> 
 </tr> 
 <tr> 
 <td>Hget</td> 
 <td>获取哈希表某一元素</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114605875" alt=""></td> 
 </tr> 
 <tr> 
 <td>hmset</td> 
 <td>批量添加哈希表元素</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114638266" alt=""><img src="https://img-blog.csdn.net/20180511114644160" alt="">&nbsp;</td> 
 </tr> 
 <tr> 
 <td>Hmget</td> 
 <td>批量获取哈希表元素</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114717910" alt=""></td> 
 </tr> 
 <tr> 
 <td>Hgetall</td> 
 <td>获取哈希表所有key-value信息</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/2018051111473567" alt=""></td> 
 </tr> 
 </tbody> 
</table>

4. 无序集合

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>sadd</td> 
 <td>添加集合元素（元素的顺序是无规律的）</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114818107" alt=""></td> 
 </tr> 
 <tr> 
 <td>smembers</td> 
 <td>获取集合元素</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114823785" alt=""></td> 
 </tr> 
 <tr> 
 <td>Spop</td> 
 <td>移除并返回集合中的一个随机元素</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/2018051111483056" alt=""></td> 
 </tr> 
 <tr> 
 <td>srem</td> 
 <td>移除集合 key 中的一个或多个 member 元素，不存在的 member 元素会被忽略</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114836144" alt=""></td> 
 </tr> 
 </tbody> 
</table>

5. 有序集合

<table> 
 <tbody> 
 <tr> 
 <td>命令</td> 
 <td>说明</td> 
 <td>示例</td> 
 </tr> 
 <tr> 
 <td>Zadd</td> 
 <td>批量添加</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511114912759" alt=""> <img src="https://img-blog.csdn.net/20180511114917781" alt="">&nbsp;</td> 
 </tr> 
 <tr> 
 <td>Zrange</td> 
 <td>查看指定下标的元素，加上withscores参数可查看对应的score值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511115010702" alt=""><img src="https://img-blog.csdn.net/20180511115017840" alt=""></td> 
 </tr> 
 <tr> 
 <td>zrangebyscore</td> 
 <td>通过score的区间值查询记录，默认是闭区间，前面加(为小于的意思，-inf 和+inf分别为无穷小和无穷大</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511115048907" alt=""><img src="https://img-blog.csdn.net/20180511115054625" alt=""></td> 
 </tr> 
 <tr> 
 <td>Zcount</td> 
 <td>计算score在某一区间的个数</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511115118645" alt=""></td> 
 </tr> 
 <tr> 
 <td>Zrem</td> 
 <td>删除集合中某一值</td> 
 <td>&nbsp;<img src="https://img-blog.csdn.net/20180511115124972" alt=""></td> 
 </tr> 
 </tbody> 
</table>

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