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Redis ???? ?? ????

1. ??-????

??-????????????????????????????????????????channel??????????????????????????????????????????

2. ??-????

????

???????????

publish channel message

• channel??????????????
• message??????

????

????????

subscribe channel [channel...]

• channel?????????????????????????
• [channel...]???????????????

3. ??-????

??????

?????????????????????????????????

????

????

# ??????? `channel`
redis-cli -h 127.0.0.1 publish channel "hello"
# ??????? `channel`
redis-cli -h 127.0.0.1 publish channel "How are you"

????

# ???? `channel`
redis-cli -h 127.0.0.1 subscribe channel

????????????????????????

# ????
1) "subscribe"
2) "channel"
3) (integer) 1
1) "message"
2) "channel"
3) "How are you"

?????

???????????? psubscribe ???????????????

# ????? `*` ?????
redis-cli -h 127.0.0.1 psubscribe greets*

??????????????? greets ???????

# ?????????
redis-cli -h 127.0.0.1 publish greet1 "hello"
redis-cli -h 127.0.0.1 publish greets_1 "hello"
redis-cli -h 127.0.0.1 publish greets_2 "world"
redis-cli -h 127.0.0.1 publish greets_3 "I am redis"

?????

# ????
1) "psubscribe"
2) "greets*"
3) (integer) 1
1) "pmessage"
2) "greets*"
3) "greets_1"
4) "hello"
1) "pmessage"
2) "greets*"
3) "greets_2"
4) "world"
1) "pmessage"
2) "greets*"
3) "greets_3"
4) "I am redis"

?????????????? Redis ??-??????????????

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