redis 学习字符类型 hash

127.0.0.1:6379> HSET userinfo1 username "king"
(integer) 1
127.0.0.1:6379> HSET userinfo1 passowor "123456"
(integer) 1
127.0.0.1:6379> HSET userinfo1 email "944851899@qq.com"
(integer) 1
127.0.0.1:6379> HGET userinfo1 username
"king"
127.0.0.1:6379> HGET userinfo1 password
(nil)
127.0.0.1:6379> HGET userinfo1 passwor
(nil)
127.0.0.1:6379> HGET userinfo1 passowor
"123456"
127.0.0.1:6379> HGET userinfo1 email
"944851899@qq.com"
127.0.0.1:6379> 

 

127.0.0.1:6379> HGET userinfo1 email
"944851899@qq.com"
127.0.0.1:6379> HSETNX userinfo1 email "99@qq.com"
(integer) 0
127.0.0.1:6379> HGET userinfo1 email
"944851899@qq.com"
127.0.0.1:6379> HSETNX userinfo1 email2 "99@qq.com"
(integer) 1
127.0.0.1:6379> HGET userinfo1 email
"944851899@qq.com"
127.0.0.1:6379> HGET userinfo1 email2
"99@qq.com"
127.0.0.1:6379> 

127.0.0.1:6379> HMSET userinfo2 username "jack" password "jack124" email "jack@qq.com"

OK
127.0.0.1:6379> HMGET userinfo2 username password email
1) "jack"
2) "jack124"
3) "jack@qq.com"
127.0.0.1:6379> 

127.0.0.1:6379> HGETALL userinfo2
1) "username"
2) "jack"
3) "password"
4) "jack124"
5) "email"
6) "jack@qq.com"
127.0.0.1:6379> HGETALL userinfo1
1) "username"
2) "king"
3) "passowor"
4) "123456"
5) "email"
6) "944851899@qq.com"
7) "email2"
8) "99@qq.com"
127.0.0.1:6379> 

127.0.0.1:6379> HKEYS userinfo1
1) "username"
2) "passowor"
3) "email"
4) "email2"
127.0.0.1:6379> HVALS userinfo1
1) "king"
2) "123456"
3) "944851899@qq.com"
4) "99@qq.com"
127.0.0.1:6379> 

127.0.0.1:6379> HGETALL userinfo1
1) "username"
2) "king"
3) "passowor"
4) "123456"
5) "email"
6) "944851899@qq.com"
7) "email2"
8) "99@qq.com"
127.0.0.1:6379> HEXISTS userinfo1 username
(integer) 1
127.0.0.1:6379> HEXISTS userinfo1 username1
(integer) 0
127.0.0.1:6379> HEXISTS userinfo1 email
(integer) 1
127.0.0.1:6379> HEXISTS userinfo1 email1
(integer) 0
127.0.0.1:6379> HEXISTS userinfo1 email12
(integer) 0
127.0.0.1:6379> HEXISTS userinfo1 email2
(integer) 1
127.0.0.1:6379> HLEN userinfo1
(integer) 4
127.0.0.1:6379> 

127.0.0.1:6379> HGETALL
(error) ERR wrong number of arguments for 'hgetall' command
127.0.0.1:6379> HGETALL userinfo1
1) "username"
2) "king"
3) "passowor"
4) "123456"
5) "email"
6) "944851899@qq.com"
7) "email2"
8) "99@qq.com"
127.0.0.1:6379> HDEL userinfo1 email2
(integer) 1
127.0.0.1:6379> HGETALL userinfo1
1) "username"
2) "king"
3) "passowor"
4) "123456"
5) "email"
6) "944851899@qq.com"
127.0.0.1:6379>