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STRING 操作的命令\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>SET(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>给数据库中名称为 key 的 string 赋予值 value；\u003C/li>\u003Cli>\u003Cb>GET(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回数据库中名称为 key 的 string 的 value；\u003C/li>\u003Cli>\u003Cb>GETSET(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>给名称为 key 的 string 赋予上一次的value；\u003C/li>\u003Cli>\u003Cb>MGET(key1, key2,…, key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回库中多个 string（它们的名称为key1，key2…）的value；\u003C/li>\u003Cli>\u003Cb>SETNX(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>如果不存在名称为 key 的 string，则向库中添加 string，名称为 key，值为 value；\u003C/li>\u003Cli>\u003Cb>SETEX(key, time, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>向库中添加 string（名称为key，值为value）同时，设定过期时间time；\u003C/li>\u003Cli>\u003Cb>MSET(key1, value1, key2, value2,…key{$n}, value{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>同时给多个 string 赋值，名称为 key{$i} 的 string 赋值 value{$i}；\u003C/li>\u003Cli>\u003Cb>MSETNX(key1, value1, key2, value2,…key{$n}, value{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>如果所有名称为 key{$i} 的 string 都不存在，则向库中添加 string，名称 key{$i} 赋值为 value{$i}；\u003C/li>\u003Cli>\u003Cb>INCR(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key 的 string 增1操作；\u003C/li>\u003Cli>\u003Cb>INCRBY(key, integer)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key 的 string 增加 integer；\u003C/li>\u003Cli>\u003Cb>DECR(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key 的 string 减1操作；\u003C/li>\u003Cli>\u003Cb>DECRBY(key, integer)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key 的 string 减少 integer；\u003C/li>\u003Cli>\u003Cb>APPEND(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key的 string 的值附加 value；\u003C/li>\u003Cli>\u003Cb>SUBSTR(key, start, end)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 string 的 value 的子串。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>4、对无索引序列 LIST 操作的命令\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>RPUSH(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>在名称为 key 的 list 尾添加一个值为 value 的元素；\u003C/li>\u003Cli>\u003Cb>LPUSH(key, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>在名称为 key 的 list 头添加一个值为 value 的 元素；\u003C/li>\u003Cli>\u003Cb>LLEN(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 list 的长度；\u003C/li>\u003Cli>\u003Cb>LRANGE(key, start, end)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 list 中 start 至 end 之间的元素（下标从0开始，下同）；\u003C/li>\u003Cli>\u003Cb>LTRIM(key, start, end)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>截取名称为 key 的 list，保留 start 至 end 之间的元素；\u003C/li>\u003Cli>\u003Cb>LINDEX(key, index)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 list 中 index 位置的元素；\u003C/li>\u003Cli>\u003Cb>LSET(key, index, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>给名称为 key 的 list 中 index 位置的元素赋值为 value；\u003C/li>\u003Cli>\u003Cb>LREM(key, count, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除 count 个名称为 key 的 list 中值为value的元素。count 为0，删除所有值为 value 的元素，count>0从 头至尾删除 count 个值为 value 的元素，count<0从尾到头删除|count|个值为value的元素；\u003C/li>\u003Cli>\u003Cb>LPOP(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回并删除名称为key的list中的首元素；\u003C/li>\u003Cli>\u003Cb>RPOP(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回并删除名称为key的list中的尾元素；\u003C/li>\u003Cli>\u003Cb>BLPOP(key1, key2,… key{$n}, timeout)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>LPOP 命令的 block 版本。即当 timeout 为0时，若遇到名称为 key{$i} 的 list 不存在或该 list 为空，则命令结束。如果 timeout>0，则遇到上述情况时，等待 timeout 秒，如果问题没有解决，则对 key{$i}+1 开始的 list 执行 pop 操作；\u003C/li>\u003Cli>\u003Cb>BRPOP(key1, key2,… key{$n}, timeout)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>RPOP 的 block 版本。参考上一命令；\u003C/li>\u003Cli>\u003Cb>RPOPLPUSH(srckey, dstkey)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回并删除名称为 srckey 的 list 的尾元素，并将该元素添加到名称为 dstkey 的 list 的头部。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>5、对有索引无序集合 SET 操作的命令\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>SADD(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>向名称为 key 的 set 中添加元素 member；\u003C/li>\u003Cli>\u003Cb>SREM(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除名称为 key 的 set 中的元素 member；\u003C/li>\u003Cli>\u003Cb>SPOP(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>随机返回并删除名称为 key 的 set 中一个元素；\u003C/li>\u003Cli>\u003Cb>SMOVE(srckey, dstkey, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>将 member 元素从名称为 srckey 的集合移到名称为 dstkey 的集合；\u003C/li>\u003Cli>\u003Cb>SCARD(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 set 的基数；\u003C/li>\u003Cli>\u003Cb>SISMEMBER(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>测试 member 是否是名称为 key 的 set 的元素；\u003C/li>\u003Cli>\u003Cb>SINTER(key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求交集；\u003C/li>\u003Cli>\u003Cb>SINTERSTORE(dstkey, key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求交集并将交集保存到 dstkey 的集合；\u003C/li>\u003Cli>\u003Cb>SUNION(key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求并集；\u003C/li>\u003Cli>\u003Cb>SUNIONSTORE(dstkey, key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求并集并将并集保存到 dstkey 的集合；\u003C/li>\u003Cli>\u003Cb>SDIFF(key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求差集；\u003C/li>\u003Cli>\u003Cb>SDIFFSTORE(dstkey, key1, key2,…key{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>求差集并将差集保存到 dstkey 的集合；\u003C/li>\u003Cli>\u003Cb>SMEMBERS(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 set 的所有元素；\u003C/li>\u003Cli>\u003Cb>SRANDMEMBER(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>随机返回名称为 key 的 set 的一个元素。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>6、对有序集合 ZSET（sorted set）操作的命令\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>ZADD(key, score, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>向名称为 key 的 zset 中添加元素 member，score 用于排序。如果该元素已经存在，则根据score更新该元素的顺序；\u003C/li>\u003Cli>\u003Cb>ZREM(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除名称为 key 的 zset 中的元素 member；\u003C/li>\u003Cli>\u003Cb>ZINCRBY(key, increment, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>如果在名称为 key 的 zset 中已经存在元素 member，则该元素的 score 增加 increment；否则向集合中添加该元素，其 score 的值为 increment；\u003C/li>\u003Cli>\u003Cb>ZRANK(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset（元素已按 score 从小到大排序）中 member 元素的 rank（即 index，从0开始），若没有 member 元素，返回 “null”；\u003C/li>\u003Cli>\u003Cb>ZREVRANK(key, member)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset（元素已按 score 从大到小排序）中 member元素的 rank（即 index，从0开始），若没有 member 元素，返回 “null”；\u003C/li>\u003Cli>\u003Cb>ZRANGE(key, start, end)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset（元素已按 score 从小到大排序）中的 index 从 start 到 end 的所有元素；\u003C/li>\u003Cli>\u003Cb>ZREVRANGE(key, start, end)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset（元素已按 score 从大到小排序）中的 index 从 start 到 end 的所有元素；\u003C/li>\u003Cli>\u003Cb>ZRANGEBYSCORE(key, min, max)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset 中 score >= min 且 score <= max 的所有元素；\u003C/li>\u003Cli>\u003Cb>ZCARD(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset 的基数；\u003C/li>\u003Cli>\u003Cb>ZSCORE(key, element)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 zset 中元素 element 的 score；\u003C/li>\u003Cli>\u003Cb>ZREMRANGEBYRANK(key, min, max)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除名称为 key 的 zset 中 rank >= min 且 rank <= max 的所有元素；\u003C/li>\u003Cli>\u003Cb>ZREMRANGEBYSCORE(key, min, max)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除名称为 key 的 zset 中 score >= min 且 score <= max 的所有元素；\u003C/li>\u003Cli>\u003Cb>ZUNIONSTORE / ZINTERSTORE(dstkeyN, key1,…,keyN, WEIGHTS w1,…wN, AGGREGATE SUM|MIN|MAX)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>对N个 zset 求并集和交集，并将最后的集合保存在 dstkeyN 中。对于集合中每一个元素的 score，在进行 AGGREGATE 运算前，都要乘以对于的 WEIGHT 参数。如果没有提供 WEIGHT，默认为1。默认的 AGGREGATE 是 SUM，即结果集合中元素 的 score 是所有集合对应元素进行 SUM 运算的值，而 MIN 和 MAX 是指，结果集合中元素的 score 是所有集合对应元素中最小值和最大值。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>7、对有序列表 HASH 操作的命令\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>HSET(key, field, value)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>向名称为 key 的 hash 中添加元素 field=value；\u003C/li>\u003Cli>\u003Cb>HGET(key, field)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中 field 对应的 value；\u003C/li>\u003Cli>\u003Cb>HMGET(key, field1, …,field{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中 field{$i} 对应的 value；\u003C/li>\u003Cli>\u003Cb>HMSET(key, field1, value1,…,field{$n}, value{$n})\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>向名称为 key 的 hash 中添加元素 field{$i}=value{$i}；\u003C/li>\u003Cli>\u003Cb>HINCRBY(key, field, integer)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>将名称为 key 的 hash 中 field 的 value 增加 integer；\u003C/li>\u003Cli>\u003Cb>HEXISTS(key, field)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>名称为 key 的 hash 中是否存在键为 field 的域；\u003C/li>\u003Cli>\u003Cb>HDEL(key, field)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>删除名称为 key 的 hash 中键为 field 的域；\u003C/li>\u003Cli>\u003Cb>HLEN(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中元素个数；\u003C/li>\u003Cli>\u003Cb>HKEYS(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中所有键；\u003C/li>\u003Cli>\u003Cb>HVALS(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中所有键对应的 value；\u003C/li>\u003Cli>\u003Cb>HGETALL(key)\u003C/b>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>返回名称为 key 的 hash 中所有的键（field）及其对应的 value。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>8、持久化\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>SAVE\u003C/b>：将数据同步保存到磁盘；\u003C/li>\u003Cli>\u003Cb>BGSAVE\u003C/b>：将数据异步保存到磁盘；\u003C/li>\u003Cli>\u003Cb>LASTSAVE\u003C/b>：返回上次成功将数据保存到磁盘的 UNIX 时戳；\u003C/li>\u003Cli>\u003Cb>SHUNDOWN\u003C/b>：将数据同步保存到磁盘，然后关闭服务。\u003C/li>\u003C/ul>\u003Cbr>\u003Cbr>\u003Cfont size=\"4\">\u003Cb>9、远程服务控制\u003C/b>\u003C/font>\u003Cspan>\u003Cspan class=\"Apple-converted-space\"> \u003C/span>\u003C/span>\u003Cbr>\u003Cbr>\u003Cul>\u003Cli>\u003Cb>INFO\u003C/b>：提供服务器的信息和统计；\u003C/li>\u003Cli>\u003Cb>MONITOR\u003C/b>：实时转储收到的请求；\u003C/li>\u003Cli>\u003Cb>SLAVEOF\u003C/b>：改变复制策略设置；\u003C/li>\u003Cli>\u003Cb>CONFIG\u003C/b>：在运行时配置 Redis 服务器。\u003C/li>\u003C/ul>","**** \n\n**1、连接操作相关的命令**\n\n \n\n- QUIT：关闭连接（connection）；\n- AUTH：简单密码认证。\n\n关于密码验证：\n \n\n1、如果 redis 监听回环IP之外的地址 任何人都可以读取其信息，所以安全问题需要考虑；\n \n\n2、redis 服务器的速度众所周知，因此官方文件中提醒设置比较复杂的密码，防止机器破解；\n \n\n3、首先需要在redis的配置文件 redis.conf 中 requirepass 注释掉的内容，设置 requirepass testpassword ；\n \n\n4、重新启动 redis (service redis-server restart) 即需密码验证；\n \n\n5、验证 auth testpassword, testpassword 是配置文件中设置的 requirepass 值。\n \n\n**2、适合全体类型的命令**\n\n \n\n- EXISTS(key) 确认一个 key 是否存在；\n- DEL(key) 删除一个 key；\n- TYPE(key) 返回值的类型；\n- KEYS(pattern) 返回满足给定 pattern 的所有 key；\n- RANDOMKEY：随机返回 key 空间的一个key；\n- RENAME(oldname, newname) 将 key 由 oldname 重命名为 newname，若 newname 存在则删除 newname 表示的 key；\n- DBSIZE：返回当前数据库中 key 的数目；\n- EXPIRE(key,ttl) 设定一个 key 的生存时间 ttl（s）；\n- TTL(key) 获得一个 key 的活动时间；\n- SELECT(index) 按索引查询；\n- MOVE(key, dbindex) 将当前数据库中的 key 转移到有 dbindex 索引的数据库；\n- FLUSHDB：删除当前选择数据库中的所有 key；\n- FLUSHALL：删除所有数据库中的所有 key。\n\n**3、对 STRING 操作的命令**\n\n \n\n- SET(key, value) 给数据库中名称为 key 的 string 赋予值 value；\n- GET(key) 返回数据库中名称为 key 的 string 的 value；\n- GETSET(key, value) 给名称为 key 的 string 赋予上一次的value；\n- MGET(key1, key2,…, key{$n}) 返回库中多个 string（它们的名称为key1，key2…）的value；\n- SETNX(key, value) 如果不存在名称为 key 的 string，则向库中添加 string，名称为 key，值为 value；\n- SETEX(key, time, value) 向库中添加 string（名称为key，值为value）同时，设定过期时间time；\n- MSET(key1, value1, key2, value2,…key{$n}, value{$n}) 同时给多个 string 赋值，名称为 key{$i} 的 string 赋值 value{$i}；\n- MSETNX(key1, value1, key2, value2,…key{$n}, value{$n}) 如果所有名称为 key{$i} 的 string 都不存在，则向库中添加 string，名称 key{$i} 赋值为 value{$i}；\n- INCR(key) 名称为 key 的 string 增1操作；\n- INCRBY(key, integer) 名称为 key 的 string 增加 integer；\n- DECR(key) 名称为 key 的 string 减1操作；\n- DECRBY(key, integer) 名称为 key 的 string 减少 integer；\n- APPEND(key, value) 名称为 key的 string 的值附加 value；\n- SUBSTR(key, start, end) 返回名称为 key 的 string 的 value 的子串。\n\n**4、对无索引序列 LIST 操作的命令**\n\n \n\n- RPUSH(key, value) 在名称为 key 的 list 尾添加一个值为 value 的元素；\n- LPUSH(key, value) 在名称为 key 的 list 头添加一个值为 value 的 元素；\n- LLEN(key) 返回名称为 key 的 list 的长度；\n- LRANGE(key, start, end) 返回名称为 key 的 list 中 start 至 end 之间的元素（下标从0开始，下同）；\n- LTRIM(key, start, end) 截取名称为 key 的 list，保留 start 至 end 之间的元素；\n- LINDEX(key, index) 返回名称为 key 的 list 中 index 位置的元素；\n- LSET(key, index, value) 给名称为 key 的 list 中 index 位置的元素赋值为 value；\n- LREM(key, count, value) 删除 count 个名称为 key 的 list 中值为value的元素。count 为0，删除所有值为 value 的元素，count>0从 头至尾删除 count 个值为 value 的元素，count\n- LPOP(key) 返回并删除名称为key的list中的首元素；\n- RPOP(key) 返回并删除名称为key的list中的尾元素；\n- BLPOP(key1, key2,… key{$n}, timeout) LPOP 命令的 block 版本。即当 timeout 为0时，若遇到名称为 key{$i} 的 list 不存在或该 list 为空，则命令结束。如果 timeout>0，则遇到上述情况时，等待 timeout 秒，如果问题没有解决，则对 key{$i}+1 开始的 list 执行 pop 操作；\n- BRPOP(key1, key2,… key{$n}, timeout) RPOP 的 block 版本。参考上一命令；\n- RPOPLPUSH(srckey, dstkey) 返回并删除名称为 srckey 的 list 的尾元素，并将该元素添加到名称为 dstkey 的 list 的头部。\n\n**5、对有索引无序集合 SET 操作的命令**\n\n \n\n- SADD(key, member) 向名称为 key 的 set 中添加元素 member；\n- SREM(key, member) 删除名称为 key 的 set 中的元素 member；\n- SPOP(key) 随机返回并删除名称为 key 的 set 中一个元素；\n- SMOVE(srckey, dstkey, member) 将 member 元素从名称为 srckey 的集合移到名称为 dstkey 的集合；\n- SCARD(key) 返回名称为 key 的 set 的基数；\n- SISMEMBER(key, member) 测试 member 是否是名称为 key 的 set 的元素；\n- SINTER(key1, key2,…key{$n}) 求交集；\n- SINTERSTORE(dstkey, key1, key2,…key{$n}) 求交集并将交集保存到 dstkey 的集合；\n- SUNION(key1, key2,…key{$n}) 求并集；\n- SUNIONSTORE(dstkey, key1, key2,…key{$n}) 求并集并将并集保存到 dstkey 的集合；\n- SDIFF(key1, key2,…key{$n}) 求差集；\n- SDIFFSTORE(dstkey, key1, key2,…key{$n}) 求差集并将差集保存到 dstkey 的集合；\n- SMEMBERS(key) 返回名称为 key 的 set 的所有元素；\n- SRANDMEMBER(key) 随机返回名称为 key 的 set 的一个元素。\n\n**6、对有序集合 ZSET（sorted set）操作的命令**\n\n \n\n- ZADD(key, score, member) 向名称为 key 的 zset 中添加元素 member，score 用于排序。如果该元素已经存在，则根据score更新该元素的顺序；\n- ZREM(key, member) 删除名称为 key 的 zset 中的元素 member；\n- ZINCRBY(key, increment, member) 如果在名称为 key 的 zset 中已经存在元素 member，则该元素的 score 增加 increment；否则向集合中添加该元素，其 score 的值为 increment；\n- ZRANK(key, member) 返回名称为 key 的 zset（元素已按 score 从小到大排序）中 member 元素的 rank（即 index，从0开始），若没有 member 元素，返回 “null”；\n- ZREVRANK(key, member) 返回名称为 key 的 zset（元素已按 score 从大到小排序）中 member元素的 rank（即 index，从0开始），若没有 member 元素，返回 “null”；\n- ZRANGE(key, start, end) 返回名称为 key 的 zset（元素已按 score 从小到大排序）中的 index 从 start 到 end 的所有元素；\n- ZREVRANGE(key, start, end) 返回名称为 key 的 zset（元素已按 score 从大到小排序）中的 index 从 start 到 end 的所有元素；\n- ZRANGEBYSCORE(key, min, max) 返回名称为 key 的 zset 中 score >= min 且 score\n- ZCARD(key) 返回名称为 key 的 zset 的基数；\n- ZSCORE(key, element) 返回名称为 key 的 zset 中元素 element 的 score；\n- ZREMRANGEBYRANK(key, min, max) 删除名称为 key 的 zset 中 rank >= min 且 rank\n- ZREMRANGEBYSCORE(key, min, max) 删除名称为 key 的 zset 中 score >= min 且 score\n- ZUNIONSTORE / ZINTERSTORE(dstkeyN, key1,…,keyN, WEIGHTS w1,…wN, AGGREGATE SUM|MIN|MAX) 对N个 zset 求并集和交集，并将最后的集合保存在 dstkeyN 中。对于集合中每一个元素的 score，在进行 AGGREGATE 运算前，都要乘以对于的 WEIGHT 参数。如果没有提供 WEIGHT，默认为1。默认的 AGGREGATE 是 SUM，即结果集合中元素 的 score 是所有集合对应元素进行 SUM 运算的值，而 MIN 和 MAX 是指，结果集合中元素的 score 是所有集合对应元素中最小值和最大值。\n\n**7、对有序列表 HASH 操作的命令**\n\n \n\n- HSET(key, field, value) 向名称为 key 的 hash 中添加元素 field=value；\n- HGET(key, field) 返回名称为 key 的 hash 中 field 对应的 value；\n- HMGET(key, field1, …,field{$n}) 返回名称为 key 的 hash 中 field{$i} 对应的 value；\n- HMSET(key, field1, value1,…,field{$n}, value{$n}) 向名称为 key 的 hash 中添加元素 field{$i}=value{$i}；\n- HINCRBY(key, field, integer) 将名称为 key 的 hash 中 field 的 value 增加 integer；\n- HEXISTS(key, field) 名称为 key 的 hash 中是否存在键为 field 的域；\n- HDEL(key, field) 删除名称为 key 的 hash 中键为 field 的域；\n- HLEN(key) 返回名称为 key 的 hash 中元素个数；\n- HKEYS(key) 返回名称为 key 的 hash 中所有键；\n- HVALS(key) 返回名称为 key 的 hash 中所有键对应的 value；\n- HGETALL(key) 返回名称为 key 的 hash 中所有的键（field）及其对应的 value。\n\n**8、持久化**\n\n \n\n- SAVE：将数据同步保存到磁盘；\n- BGSAVE：将数据异步保存到磁盘；\n- LASTSAVE：返回上次成功将数据保存到磁盘的 UNIX 时戳；\n- SHUNDOWN：将数据同步保存到磁盘，然后关闭服务。\n\n**9、远程服务控制**\n\n \n\n- INFO：提供服务器的信息和统计；\n- MONITOR：实时转储收到的请求；\n- SLAVEOF：改变复制策略设置；\n- CONFIG：在运行时配置 Redis 服务器。","/article/14",4730,"2018-10-18 14:23:33","2018-10-18 14:25:13",[156,157,158],{"id":39,"name":81,"url":82},{"id":44,"name":23,"url":59},{"id":145,"name":146,"url":151},{"create_time":6,"description":6,"id":44,"image_url":6,"index_template":52,"is_cover":53,"is_menu":53,"keywords":6,"list_template":54,"model_code":55,"model_id":56,"model_name":57,"name":23,"parent_id":39,"seo_description":6,"seo_keywords":6,"seo_title":6,"show_template":58,"sort":53,"subtitle":6,"update_time":6,"url":59},{"title":161,"url":162},"如何在CentOS7上配置发送电子邮 ","/article/15",{"title":164,"url":59},"返回列表",[166,167,168,169],{"create_time":6,"description":6,"id":44,"image_url":6,"index_template":52,"is_cover":53,"is_menu":53,"keywords":6,"list_template":54,"model_code":55,"model_id":56,"model_name":57,"name":23,"parent_id":39,"seo_description":6,"seo_keywords":6,"seo_title":6,"show_template":58,"sort":53,"subtitle":6,"update_time":6,"url":59},{"create_time":6,"description":6,"id":45,"image_url":6,"index_template":52,"is_cover":53,"is_menu":53,"keywords":6,"list_template":54,"model_code":55,"model_id":56,"model_name":57,"name":61,"parent_id":39,"seo_description":6,"seo_keywords":6,"seo_title":6,"show_template":58,"sort":56,"subtitle":6,"update_time":6,"url":62},{"create_time":6,"description":6,"id":46,"image_url":6,"index_template":52,"is_cover":53,"is_menu":53,"keywords":6,"list_template":54,"model_code":55,"model_id":56,"model_name":57,"name":64,"parent_id":39,"seo_description":6,"seo_keywords":6,"seo_title":6,"show_template":58,"sort":65,"subtitle":6,"update_time":6,"url":66},{"create_time":6,"description":6,"id":47,"image_url":6,"index_template":52,"is_cover":53,"is_menu":53,"keywords":6,"list_template":54,"model_code":55,"model_id":56,"model_name":57,"name":68,"parent_id":39,"seo_description":6,"seo_keywords":6,"seo_title":6,"show_template":58,"sort":69,"subtitle":6,"update_time":6,"url":70},{"description":148,"keywords":147,"title":146},[172,181,190,199,208,217,226,235,244,252],{"id":173,"category_id":44,"title":174,"keywords":175,"description":176,"image_url":6,"url":177,"hits":178,"is_recommend":73,"is_top":73,"create_time":179,"update_time":180},101,"开启 HTTPS 并获得 ssllabs 满分的过程","开启,获得,满分,过程","准备工作确保你要申请证书的域名都解析到了这台服务器上，且能直接通过域名访问。使用官网推荐的CertBot获取证书。在CertBot官网选择一下环境(比如我选Nginx on Ubuntu 17.04)就可以看到入门教程了。安装CertBot12345apt-get updateapt-get install software-properties-commonadd-apt-repository ppa:certbot/certbotapt-get updateapt-get","/article/101",18546,"2019-11-26 16:12:11","2019-11-26 16:23:16",{"id":182,"category_id":44,"title":183,"keywords":184,"description":185,"image_url":6,"url":186,"hits":187,"is_recommend":73,"is_top":73,"create_time":188,"update_time":189},113,"在CentOS 7中添加命令自动补全功能","命令自动补全,centos","在CentOS 7中，默认情况下并不会安装命令补全包，需要手动安装才能使用命令补全功能。以下是在CentOS 7中安装命令补全包的方法：1. bash-completion：这是一个针对Bash shell的命令补全软件包，可以提供对系统命令、用户自定义命令和文件路径的自动补全功能。可以通过以下命令安装：```sudo yum install bash-completion```安装完成后，需要在/etc/profile配置文件中添加以下内容：```if [ -f /etc/bash_compl","/article/113",14948,"2023-05-16 10:54:01","2023-05-16 10:57:28",{"id":191,"category_id":44,"title":192,"keywords":193,"description":194,"image_url":6,"url":195,"hits":196,"is_recommend":53,"is_top":73,"create_time":197,"update_time":198},94,"Centos7 安装 openvas ","openvas,开放式漏洞评估系统，installing openvas centos-7","一、描述OpenVAS，即开放式漏洞评估系统，是一个用于评估目标漏洞的杰出框架。功能十分强大，最重要的是，它是“开源”的——就是免费的意思啦～它与著名的Nessus“本是同根生”，在Nessus商业化之后仍然坚持开源，号称“当前最好用的开源漏洞扫描工具”。最新版的Kali Linux(kali 3.0)不再自带OpenVAS了，所以我们要自己部署OpenVAS漏洞检测系统。其核心部件是一个服务器，包括一套网络漏洞测试程序，可以检测远程系统和应用程序中的安全问题。但是它的最常用用途是检测目标网络或","/article/94",14690,"2019-01-14 17:43:42","2019-01-14 18:16:36",{"id":200,"category_id":44,"title":201,"keywords":202,"description":203,"image_url":6,"url":204,"hits":205,"is_recommend":73,"is_top":73,"create_time":206,"update_time":207},99,"Centos7 利用iptables防止nmap工具防端口扫描","iptables","一、Nmap介绍       Nmap（NetworkMapper）是一款开放源代码的网络探测和安全审核工具。它用于快速扫描一个网络和一台主机开放的端口，还能使用TCP/IP协议栈特征探测远程主机的操作系统类型。nmap支持很多扫描技术，例如：UDP、TCPconnect()、TCPSYN(半开扫描)、ftp代理(bounce攻击)、反向标志、ICMP、FIN、ACK扫描、圣诞树(XmasTree)、SYN扫描和null扫描。Nmap最初是用于Unix系统","/article/99",14415,"2019-07-09 21:27:00","2019-07-09 21:57:53",{"id":209,"category_id":46,"title":210,"keywords":211,"description":212,"image_url":6,"url":213,"hits":214,"is_recommend":73,"is_top":73,"create_time":215,"update_time":216},61,"Docker 推荐的启动方式","推荐,启动,方式","# cat DockerfileFROM openjdk:8-alpineWORKDIR /ADD ./target/*.jar app.jarEXPOSE 9999COPY docker-entrypoint.sh /RUN chmod +x /docker-entrypoint.shENTRYPOINT [“/docker-entrypoint.sh”]CMD [“java”,”-server”,”-Duser.timezone=GMT+08″,”-jar”,”/app.jar”]# cat","/article/61",14347,"2018-10-22 13:55:47","2018-10-22 13:56:10",{"id":218,"category_id":44,"title":219,"keywords":220,"description":221,"image_url":6,"url":222,"hits":223,"is_recommend":73,"is_top":73,"create_time":224,"update_time":225},107,"Acme.sh 给 SSL 证书自动续期失败的解决方法","HTTP/1.1 200 OK,Server: Bayou Tech Web Srv 1.0,Content-Encoding: none,Content-Length: 5,Content-Type","一、Acme.sh 自动续期失败的症状问题描述如下，续期的时候，提示如下错误：root@dc:~# \"/data/acme.sh\"/acme.sh --cron --home \"/data/acme.sh\" > /dev/null[Sun Nov 10 23:52:17 CST 2020] Error, can not get domain token entry example.com[Sun Nov 10 23:52:17 CST 2020] Please check log file","/article/107",12618,"2021-09-03 10:44:18","2021-09-03 10:46:23",{"id":227,"category_id":44,"title":228,"keywords":229,"description":230,"image_url":6,"url":231,"hits":232,"is_recommend":53,"is_top":73,"create_time":233,"update_time":234},93,"ELK+Filebeat+Kafka+ZooKeeper 构建海量日志分析平台","Filebeat,Kafka","一、说明1.Filebeat是一个日志文件托运工具，在你的服务器上安装客户端后，filebeat会监控日志目录或者指定的日志文件，追踪读取这些文件（追踪文件的变化，不停的读）2.Kafka是一种高吞吐量的分布式发布订阅消息系统，它可以处理消费者规模的网站中的所有动作流数据3.Logstash是一根具备实时数据传输能力的管道，负责将数据信息从管道的输入端传输到管道的输出端；与此同时这根管道还可以让你根据自己的需求在中间加上滤网，Logstash提供里很多功能强大的滤网以满足你的各种应用场景4.El","/article/93",12190,"2018-12-24 16:40:08","2018-12-26 11:53:38",{"id":236,"category_id":46,"title":237,"keywords":238,"description":239,"image_url":6,"url":240,"hits":241,"is_recommend":53,"is_top":73,"create_time":242,"update_time":243},81,"kubernetes 1.12.1 高可用安装之部署Dashboard","安装Dashboard","创建Dashboard需要CoreDNS部署成功之后再安装Dashboard。[root@master01 ~]# wget https://zhl123.com/download/k8s/Dashboard.tgz[root@master01 ~]# tar xf Dashboard.tgz[root@master01 ~]# kubectl create -f Dashboard/[root@master01 Dashboard]# kubectl get svc -n kube-syste","/article/81",12037,"2018-10-26 09:54:41","2018-10-26 16:59:19",{"id":245,"category_id":44,"title":246,"keywords":6,"description":247,"image_url":6,"url":248,"hits":249,"is_recommend":73,"is_top":73,"create_time":250,"update_time":251},100,"用 Nginx 给 Cookie 增加 Secure 和 HttpOnly","在 nginx 的 location 中配置12# 只支持 proxy 模式下设置，SameSite 不需要可删除，如果想更安全可以把 SameSite 设置为 Strictproxy_cookie_path / \"/; httponly; secure; SameSite=Lax\";示例1234567891011121314151617181920212223242526server {    listen 443 ssl http2;    server_name www.zhl123.cn","/article/100",11848,"2019-11-26 16:10:57","2019-11-26 16:23:45",{"id":253,"category_id":44,"title":254,"keywords":255,"description":256,"image_url":6,"url":257,"hits":258,"is_recommend":73,"is_top":73,"create_time":259,"update_time":260},41,"Tomcat 安全配置与性能优化","tomcat，性能优化","1. JVM 1.1. 使用 Server JRE 替代JDK。 服务器上不要安装JDK，请使用 Server JRE. 服务器上根本不需要编译器，代码应该在Release服务器上完成编译打包工作。 理由：一旦服务器被控制，可以防止在其服务器上编译其他恶意代码并植入到你的程序中。 1.2. JAVA_OPTS export JAVA_OPTS=\"-server -Xms512m -Xmx4096m  -XX:PermSize=64M -","/article/41",11623,"2016-09-01 17:06:36","2018-10-18 17:06:58",[262,270,278,286,294,302,310,318,327,336],{"id":263,"category_id":40,"title":264,"keywords":6,"description":265,"image_url":6,"url":266,"hits":267,"is_recommend":73,"is_top":73,"create_time":268,"update_time":269},123,"Agent Skill 精选集：最值得收藏的 Agent Skills Top 10","如果你正在用 Claude Code 或 Codex，一定对 Agent Skills 不陌生。通过安装 Agent Skills，你可以让这些 AI 助手变得更强——不用每次都解释你的需求，它们直接就知道该怎么做。最近有人在 GitHub 上做了一个采样调查，统计了哪些 Skills 的质量最佳和最受欢迎。我整理了这份 Top 10 榜单，加上使用场景和适合人群，帮你快速找到最有用的那几个。Top 10 最受欢迎的 Agent Skills1. Skil","/article/123",270,"2026-01-19 18:49:12","2026-01-19 18:52:01",{"id":271,"category_id":44,"title":272,"keywords":6,"description":273,"image_url":6,"url":274,"hits":275,"is_recommend":73,"is_top":73,"create_time":276,"update_time":277},122,"Nginx性能调优18条黄金法则：支撑10万并发的配置模板","一、概述1.1 背景介绍说实话，Nginx调优这事儿我踩过无数坑。记得2019年双11，我们电商平台流量暴涨，Nginx直接扛不住了，QPS从平时的2万飙升到8万，响应时间从50ms飙到了2秒，最后还是靠临时加机器扛过去的。那次事故之后，我花了大半年时间专门研究Nginx的性能极限，总结出了这20条黄金法则。Nginx作为目前最流行的Web服务器和反向代理，官方数据显示单机可以轻松处理10万+的并发连接。但实际生产环境中，很多同学拿到默认配置就直接上了，结果发现连1万并发都扛不住。问题不在Ngi","/article/122",337,"2026-01-12 11:11:50","2026-01-12 11:12:28",{"id":279,"category_id":46,"title":280,"keywords":6,"description":281,"image_url":6,"url":282,"hits":283,"is_recommend":73,"is_top":73,"create_time":284,"update_time":285},121,"Docker 镜像优化与安全扫描：将镜像体积压缩 70%","1. 适用场景 & 前置条件项目要求适用场景容器化应用镜像体积过大（> 500MB），构建时间长（> 10分钟），存在安全漏洞（CVE高危）OSRHEL/CentOS 7.9+ 或 Ubuntu 20.04+内核Linux Kernel 3.10+软件版本Docker 20.10+ 或 Podman 3.0+，Trivy 0.40+（安全扫描工具）资源规格2C4G（最小）/ 4C8G（推荐），磁盘 50GB+（存储镜像与缓存）网络可访问 Docker Hub/阿里云镜像仓库（","/article/121",309,"2026-01-06 11:54:35","2026-01-06 12:01:59",{"id":287,"category_id":44,"title":288,"keywords":6,"description":289,"image_url":6,"url":290,"hits":291,"is_recommend":73,"is_top":73,"create_time":292,"update_time":293},120,"用 Prometheus Recording Rules 把告警噪声砍掉 70%(二)","五、故障排查和监控5.1 故障排查◆ 5.1.1 日志查看# 查看 Prometheus 日志中的规则评估错误journalctl -u prometheus | grep -i \"rule\" | tail -50# 查看规则评估耗时curl -s http://localhost:9090/api/v1/rules | jq '.data.groups[].rules[] | select(.health != \"ok\")'# Kubernet","/article/120",282,"2026-01-06 11:53:50","2026-01-06 11:54:33",{"id":295,"category_id":44,"title":296,"keywords":6,"description":297,"image_url":6,"url":298,"hits":299,"is_recommend":73,"is_top":73,"create_time":300,"update_time":301},119,"用 Prometheus Recording Rules 把告警噪声砍掉 70%(一)","一、概述1.1 背景介绍在大规模微服务架构下，Prometheus 告警系统往往会陷入一个尴尬的境地：告警太多，运维团队开始选择性忽略；告警太少，真正的故障又可能漏掉。我在某电商平台负责监控体系建设时，团队每天要处理超过 2000 条告警，其中 70% 以上是重复的、关联的或者短暂抖动产生的噪声。Recording Rules 是 Prometheus 提供的预计算机制，可以将复杂的查询表达式预先计算并存储为新的时间序列。通过合理设计 Recording Rules，我们不仅能显著降低 Prom","/article/119",301,"2026-01-06 11:51:58","2026-01-06 11:53:45",{"id":303,"category_id":44,"title":304,"keywords":6,"description":305,"image_url":6,"url":306,"hits":307,"is_recommend":73,"is_top":73,"create_time":308,"update_time":309},118,"GitOps 落地实践：ArgoCD + Kustomize 实现声明式基础设施管理(二)","四、最佳实践和注意事项4.1 最佳实践4.1.1 性能优化优化点一：减少 Git 轮询频率# argocd-cm ConfigMapapiVersion: v1kind: ConfigMapmetadata:  name: argocd-cm  namespace: argocddata:  timeout.reconciliation: 300s  # 默认 180","/article/118",305,"2026-01-06 11:49:00","2026-01-06 11:49:34",{"id":311,"category_id":44,"title":312,"keywords":6,"description":313,"image_url":6,"url":314,"hits":315,"is_recommend":73,"is_top":73,"create_time":316,"update_time":317},117,"GitOps 落地实践：ArgoCD + Kustomize 实现声明式基础设施管理(一)","一、概述1.1 背景介绍GitOps 作为云原生时代的运维范式，将 Git 作为基础设施和应用配置的单一事实来源，通过声明式配置和自动化同步机制，实现了配置管理的版本控制、审计追溯和快速回滚。ArgoCD 作为 CNCF 毕业项目，提供了完整的 GitOps 工作流，支持多集群管理、RBAC 权限控制、SSO 集成等企业级特性。结合 Kustomize 的配置管理能力，能够优雅地解决多环境配置差异、敏感信息管理、配置复用等问题。在传统的 CI/CD 流程中，往往由 CI 工具直接执行 kubec","/article/117",310,"2026-01-06 11:45:03","2026-01-06 11:48:56",{"id":319,"category_id":40,"title":320,"keywords":321,"description":322,"image_url":6,"url":323,"hits":324,"is_recommend":73,"is_top":73,"create_time":325,"update_time":326},116,"运维部门年度2025工作总结与2026工作规划应该如何写？","运维部门年度2025工作总结,2026工作规划","2025年，运维部在公司“数字化转型深化”战略引领下，以“稳定为基、效率为纲、安全为盾、创新为翼”为核心导向，全面支撑核心业务系统运行、推动技术架构迭代、强化团队能力建设。 全年实现核心业务系统可用性99.985%，较2024年提升0.02个百分点；故障平均恢复时间（MTTR）从42分钟压缩至29分钟，下降31%；云资源成本同比降低16.8%，自动化运维覆盖率从65%提升至83%，未发生重大生产安全事故，圆满完成年度目标。现将全年工作及2026年规划汇报如下：2025年核心工作成果（数","/article/116",297,"2026-01-06 11:20:58","2026-01-06 11:44:04",{"id":328,"category_id":40,"title":329,"keywords":330,"description":331,"image_url":6,"url":332,"hits":333,"is_recommend":73,"is_top":73,"create_time":334,"update_time":335},115,"Kubernetes 100个常用命令","100 个 Kubectl 命令","这篇文章是关于使用 Kubectl 进行 Kubernetes 诊断的指南。列出了 100 个 Kubectl 命令，这些命令对于诊断 Kubernetes 集群中的问题非常有用。这些问题包括但不限于：• 集群信息• Pod 诊断• 服务诊断• 部署诊断• 网络诊断• 持久卷和持久卷声明诊断• 资源使用情况• 安全和授权• 节点故障排除• 其他诊断命令：文章还提到了许多其他命令，如资源扩展和自动扩","/article/115",3642,"2023-11-02 14:09:30","2023-11-02 14:10:05",{"id":182,"category_id":44,"title":183,"keywords":184,"description":185,"image_url":6,"url":186,"hits":187,"is_recommend":73,"is_top":73,"create_time":188,"update_time":189},1784716029595]