1、下载并安装mysql-connector-net,我用的8.0.28版本,地址:https://cdn.mysql.com//Downloads/Connector-Net/mysql-connector-net-8.0.28.msi
2、安装完成后,找到安装的目录,在项目中添加Mysql.Data.dll引用,我的安装在D盘,地址为:
D:\Program Files (x86)\MySQL\MySQL Connector Net 8.0.28\Assemblies\v4.5.2
3、webconfig添加数据库连接字符串
<add name="xxxx" connectionString="Server=localhost;Database=DBName;uid=root;pwd=******;Charset=utf8" providerName="MySql.Data.MySqlClient" />