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2020goodsmanagementsystem.winform-mysql's Introduction

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winform版的小型货物管理系统,数据库使用了mysql,应用了代理模式,和抽象工厂模式的设计**,可以快速搭建项目环境。 image

备注及还未改进的问题:

1.未对数据进行合法化判断,可能导致SQL注入,引起报错。

2.可选择不连续的多行进行删除,思路是将勾选中的行,存储到List中,然后遍历列表,逐个删除。缺点是当数据量较大时,处理时间可能变长。

3.当数据量很大时,需要进行分库分表处理。

4.MySqlDataReader打开后必须及时关闭,当需要多次打开时,需要先对上一个MySqlDataReader进行close(),否则报错。

5.MySqlDataAdapter 只能进行select操作。不能进行delete,insert,update操作。

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