python-mysql数据库操作封装

前言：最近在学python，学到有关数据库的操作之时，想着把数据库的配置抽离出来，下面把代码贴出来~

db_config.py

class mysql_config():

def get_config(self, name):
config = {
'testdb': {
'host': '127.0.0.1',
'user': 'root',
'password': '123',
'database': 'test',
'port': 3306
}
}
return config[name]

通过config这个dict，用name去检索配置，一般数据库的配置分测试服（开发）数据库还有正式服数据库

db_mysql

import mysql.connector
from db_config import mysql_config
m_config = mysql_config()

class db_mysql_detail():

def __init__(self, name):
self.__name = name
self.__conn = self.build_conn(name)
self.__cursor = self.__conn.cursor()

@property
def conn(self):
return self.__conn

def build_conn(self, name):
try:
config = m_config.get_config(name)
con = mysql.connector.connect(**config)
return con
except mysql.connector.Error as err:
print('Something wrong: %s' % format(err))

def getAll(self,sql):
self.__cursor.execute(sql)
return self.__cursor.fetchall()

def close(self):
pass

使用pip下载mysql包，import类mysql.connector

assist.py

from db_mysql import db_mysql_detail

obj = db_mysql_detail('testdb')
sql = 'select * from user'
data = obj.getAll(sql)
print(data)

进行测试