Python实现一个简单的MySQL类
本文实例讲述了Python实现一个简单的MySQL类。分享给大家供大家参考。
具体实现方法如下：
复制代码 代码如下:
#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Created on 2011-2-19
# @author: xiaoxiao
import MySQLdb
import sys
__all__ = ['MySQL']
class MySQL(object):
'''
MySQL
'''
conn = ''
cursor = ''
def __init__(self,host='localhost',user='root',passwd='root',db='mysql',charset='utf8'):
"""MySQL Database initialization """
try:
self.conn = MySQLdb.connect(host,user,passwd,db)
except MySQLdb.Error,e:
errormsg = 'Cannot connect to server\nERROR (%s): %s' %(e.args[0],e.args[1])
print errormsg
sys.exit()
self.cursor = self.conn.cursor()
def query(self,sql):
""" Execute SQL statement """
return self.cursor.execute(sql)
def show(self):
""" Return the results after executing SQL statement """
return self.cursor.fetchall()
def __del__(self):
""" Terminate the connection """
self.conn.close()
self.cursor.close()
#test
if __name__ == '__main__':
mysql = MySQL(host=localhost,passwd='test',db='mysql')
mysql.query('select * from users')
result = mysql.show()
print len(result)
print result[1]
# -*- coding:utf-8 -*-
# Created on 2011-2-19
# @author: xiaoxiao
import MySQLdb
import sys
__all__ = ['MySQL']
class MySQL(object):
'''
MySQL
'''
conn = ''
cursor = ''
def __init__(self,host='localhost',user='root',passwd='root',db='mysql',charset='utf8'):
"""MySQL Database initialization """
try:
self.conn = MySQLdb.connect(host,user,passwd,db)
except MySQLdb.Error,e:
errormsg = 'Cannot connect to server\nERROR (%s): %s' %(e.args[0],e.args[1])
print errormsg
sys.exit()
self.cursor = self.conn.cursor()
def query(self,sql):
""" Execute SQL statement """
return self.cursor.execute(sql)
def show(self):
""" Return the results after executing SQL statement """
return self.cursor.fetchall()
def __del__(self):
""" Terminate the connection """
self.conn.close()
self.cursor.close()
#test
if __name__ == '__main__':
mysql = MySQL(host=localhost,passwd='test',db='mysql')
mysql.query('select * from users')
result = mysql.show()
print len(result)
print result[1]
希望本文所述对大家的Python程序设计有所帮助。
