简单示例python操作memcache

 

项目需要python

简单示例

表结构

1 CREATE TABLE `slevin` ( 2 `id` int(5) NOT NULL DEFAULT '0', 3 `name` char(10) DEFAULT NULL, 4 PRIMARY KEY (`id`) 5 ) ENGINE=InnoDB DEFAULT CHARSET=latin1

查看表的内容

1 mysql> select * from slevin; 2 +----+------+ 3 | id | name | 4 +----+------+ 5 | 1 | o | 6 | 2 | h | 7 | 3 | c | 8 | 4 | d | 9 | 5 | e | 10 | 6 | f | 11 | 7 | a | 12 | 8 | b | 13 | 9 | c | 14 | 10 | d | 15 | 11 | e | 16 | 12 | f | 17 +----+------+ 18 12 rows in set (0.00 sec)

以下是python操作memcache的脚本

1 import MySQLdb, memcache, hashlib 2 import MySQLdb.cursors 3 #建立一个简单hash算法函数 4 def hash(obj): 5 m=hashlib.md5() 6 m.update(obj) 7 key=m.hexdigest() 8 return key 9 #返回字典式的元组(cursorclass = MySQLdb.cursors.DictCursor) 10 conn = MySQLdb.connect (host = "192.168.1.254",user = "root",passwd = "000000",db = "test",cursorclass = MySQLdb.cursors.DictCursor) 11 mc = memcache.Client(['192.168.1.254:11211'],debug=0) 12 #cursor = conn.cursor () 13 two=conn.cursor () 14 two.execute ("select * from slevin") 15 row=two.fetchall() 16 #mc.flush_all() 17 if not mc.get(hash("slevin2")): 18 for i in row: 19 #用HASH(表名+id值)做为KEY,把一行的记录存储到一个key里面 20 tabname='slevin' 21 tabname=tabname+str(i.values()[0]) 22 mc.add(hash(tabname),i) 23 #print mc.get(hash(tabname)) 24 else: 25 value=mc.get(hash("slevin2")) 26 for key in value.keys(): 27 print "%s is %s" %(key,value[key]) 28 mc.disconnect_all() 29 cursor.close () 30 conn.close ()