mysql 找不到或无法加载已注册的 .Net Framework Data Provider

1. 需要安装 mysql-connector-net-6.7.4.msi

2. 在C盘安装mysql的位置找到三个DLL，复制到Bin文件夹下

3. 在C:WindowsMicrosoft.NETFrameworkv4.0.30319Configmachine.config 增加

<system.data>

<DbProviderFactories>

<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.7.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />

或者再在配置文件的web下添加引用，PubulishKeyToken 根据版本来。

<system.data>

    <DbProviderFactories>

      <remove invariant="MySql.Data.MySqlClient" />

      <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.7.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />

    </DbProviderFactories>

  </system.data>