添加 mysql dll 引用
WebConfig 配置：
1.先添加connectionstrings,providerName 换成 mysql的
<connectionStrings>
<add name="ECSWebDb" connectionString="User Id=xxx;server=.;Database=xxx;pwd=xxx;Persist Security Info=True;"
providerName="MySql.Data.MySqlClient"/>
</connectionStrings>
2.EF 添加Provider的 配置
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<entityFramework> <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mysqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6"/>
</providers>
</entityFramework>
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3. system.data 增加 DbProviderFactories
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<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=6.9.8.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
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