2014-09-22 53 views
4

我使用python redis通过匹配选项来匹配某些信息?但它不起作用。Redis扫描命令匹配选项在Python中不起作用

import redis 
import REDIS 

class UserCache(object): 
    def __init__(self): 
     self.rds = self._connectRds() 

    def _connectRds(self): 
     _db = REDIS['usercache'] 
     pool = redis.ConnectionPool(host=_db['HOST'], port= _db['PORT'], db=_db['DB']) 
     rds = redis.Redis(connection_pool=pool) 
     return rds 

cache = UserCahce() 
cache.rds.execute("scan", "0", match="userinfo_*") 

似乎匹配选项在扫描命令中工作。

在[68]:cache.rds.execute_command( “扫描”, “0”,匹配= “userinfo_ *”) 缺货[68]: [ '28', [ 'user_dev_20199116', 'devinfo_af85d776fcc9dbc56e3cca16594e1c9ec36fecd10000000001', 'devinfo_dd552211d1b97a825c416aaaf3c62ce8ce4661820000000002', 'user_dev_2', 'userinfo_20130243', 'session_r4XXdvzJ28VuPMoWWU4cnsNv7NEAAAAAAQ ==', 'devinfo_35372afae1de3dbf6a213f659c2814c7b1767f2400013436cc', 'session_3IaTKySREBKjMTAi1puQSwzO20wAAAAAAQ ==', “session_3VUiEdG5eoJcQWqq88Ys6M5GYYIAA AAAAG ==”, 'user_dev_20130243']

+0

我扫描用户信息,通过从“userinfo”开始检查并解决问题。 – 2014-09-25 08:18:10

回答

18

尝试SCAN命令是这样的:

r = Redis(....) #redis url 
for user in r.scan_iter(match='userinfo_*'): 
    print(user) 
0

HSCAN似乎比扫描更快,更好地运用HSCAN只有当你确定关于关键,如果你需要搜索所有的键,然后用扫描

for name in r.hscan_iter('live_AP_460000','name'): 
    print(name) #for a single child key 

for hash in r.hscan_iter('live_AP_460000'): 
    print(hash) #for all child keys 

hscan比扫描快,只有当您正在搜索正确的密钥,否则获取具有某种相似模式的所有密钥,请参阅扫描。以供参考。 How to search a key pattern in redis hash?