49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
# -*- coding: UTF-8 -*-
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import pymysql
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class Mysql(object):
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def __init__(self):
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#配置mysql数据库信息
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config = {
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'host': '127.0.0.1',
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'port': 3306,
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'user': 'root',
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'passwd': '123456',
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'db': 'news',
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'charset': 'utf8'
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}
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self.host = config['host']
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self.username = config['user']
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self.password = config['passwd']
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self.port = config['port']
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self.db = config['db']
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self.con = None
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self.cursor = None
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try:
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self.conn = pymysql.connect(**config)
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# 所有的查询，都在连接 con 的一个模块 cursor 上面运行的
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self.cursor = self.conn.cursor(cursor=pymysql.cursors.DictCursor)
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except:
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print("DataBase connect error,please check the db config.")
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def exeCommit(self, sql=''):
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"""执行数据库sql语句，针对更新,删除,事务等操作失败时回滚
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"""
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try:
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execute = self.cursor.execute(sql)
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self.conn.commit()
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return execute
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except pymysql.Error as e:
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self.conn.rollback()
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error = 'MySQL execute failed! ERROR (%s): %s' % (e.args[0], e.args[1])
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print("error:", error)
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return error
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def __del__(self):
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# 关闭cursor对象
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self.cursor.close()
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self.conn.close() |