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由于在我们的项目中使用Spring
Cached和Redis结合的方式对一部分数据做数据库缓存,当缓存和数据库数据不一致时(由于手动改数据库引起),就得清空数据库的缓存,这就涉及到Redis迷糊匹配删除数据的情况发生。
Redis keys命令支持模式匹配,但是del命令不支持模式匹配,有时候需要根据一定的模式来模糊删除key,这时只能结合shell命令来完成了。
具体命令是:
redis-cli KEYS "pattern" | xargs redis-cli DEL 比如 redis-cli KEYS "celery*" |
xargs redis-cli DEL
其中pattern是keys命令支持的模式,这样就可以模糊删除key了。
注意注意这是shell命令,不是redis的命令!!
我的例子:
进到redis安装目录的src目录
/usr/local/redis-2.8.17/src
然后执行命令
./redis-cli -a jl2012 KEYS “drugStoreService_cache*” | xargs redis-cli -a
jl2012 DEL
其中drugStoreService_cache就是模糊匹配的key的前缀;-a
jl2012是因为我们的redis数据库使用了密码,需鉴权,没设置密码的redis是不需要这个参数的。备忘备忘!