#!/usr/bin/env python # -*-coding:utf-8 -*- # # 无法执行多个query，self.conn.close()放在CdbConn类的单独函数中，每次query之后要手动close；否则多次query，会自动关闭 import pymysql class CdbConn(): def __init__(self, db_host, db_user, db_pwd, db_name, db_port=3306): self.db_host = db_host self.db_port = db_port self.db_user = db_user self.db_pwd = db_pwd self.db_name = db_name self.status = True self.conn = self.getConnection() def getConnection(self): try: conn = pymysql.Connect( host=self.db_host, # 设置MYSQL地址 port=int(self.db_port), # 设置端口号 user=self.db_user, # 设置用户名 passwd=self.db_pwd, # 设置密码 db=self.db_name, # 数据库名 charset='utf8', # 设置编码 use_unicode=True ) return conn except Exception as e: self.status = False print('数据库连接异常: ', e) def query(self, sqlString): cursor = self.conn.cursor() cursor.execute(sqlString) returnData = cursor.fetchall() cursor.close() # self.conn.close() return returnData def close(self): self.conn.close() def update(self, sqlString): cursor = self.conn.cursor() cursor.execute(sqlString) self.conn.commit() cursor.close() # self.conn.close()
来源：博客园
作者：whitesky-root
链接：https://www.cnblogs.com/yum777/p/11676806.html