python sql语句封装连接mysql

进行了代码优化，欢迎评审

#!/usr/bin/python

# -*- coding:utf-8 -*-

import logging

logging.basicConfig(level=logging.INFO)

 

class baselib(json.JSONEncoder):

def __init__(self):

self.conn = mysql.connector.connect(host='192.1.1.1',port=3306,user='root',passwd='123456',db='user',charset="utf8")

 

def query(self,sql):

try:

self.cursor = self.conn.cursor(dictionary=True) #返回数据为dict

data = self.cursor.execute(sql)

data = self.cursor.fetchone()

data = json.dumps(data,cls=CJsonEncoder).decode("unicode-escape")

except mysql.connector.Error as e:

print ('Error : {}'.format(e))

finally:

print 'Connect wemedia closed in finally'

return data

def GetBitradeSqlAll(self,sql):

try:

self.cursor = self.conn.cursor()

data = self.cursor.execute(sql)

data = self.cursor.fetchall()

data = json.dumps(data,cls=CJsonEncoder).decode("unicode-escape")

except mysql.connector.Error as e:

print ('Error : {}'.format(e))

finally:

print 'Connect wemedia closed in finally'

return data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

import mysql.connector

class mysqltest(object):

def __init__(self):

pass

 

def selectmysql(self,sql):

global conn,cursor

conn = mysql.connector.connect(host='127.0.0.1',port=3306,user='test',passwd='root@test',db='testuser', use_unicode=True)

try:

cursor = conn.cursor()

# 插入一行记录，注意MySQL的占位符是%s:

data = cursor.execute(sql)

# 查询单数据时用

#"%s" '% index

wmid = cursor.fetchone()

# wmid = cursor.fetchall() 查询多数据时使用

except mysql.connector.Error as e:

print ('Error : {}'.format(e))

finally:

print 'Connect wemedia closed in finally'

return wmid

if __name__ == '__main__':

w= mysqltest()

sql = '''select wm_id from wm_owner_info where wm_owner_info.id =59129'''

data = w.selectmysql(sql)

print data

conn.commit()

cursor.close

conn.close

 

以下为历史版本

#!/usr/bin/python

# -*- coding: UTF-8 -*-

import mysql.connector

 

class connectMysql(object):　　

 

　　def ExecNonQuery(sql):

　　　　conn = MySQLdb.connect(host='xxxx',user='xxxx',passwd='xxxx',db='xxxx')

　　　　cursor = conn.cursor()

　　　　cursor.execute(sql)

　　　　res = cursor.fetchone()

　　　　print res

　　　　cursor.close

　　　　conn.close

#!/usr/bin/python

# -*- coding: UTF-8 -*-

from connectMysql import connectSQl

class diaoyong(object):

 

　　def mysql_query(self,i):

　　　　sad = connectSQl()

　　　　sad.ExecNonQuery('select * from user where id = "%s" ' % i )

 

if __name__ == '__main__':

　　w = diaoyong()

　　w.mysql_query('5')