EF数据库配置

 <?xml version="1.0" encoding="utf-8"?>
  <configuration>
      <configSections>
          <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
          <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
      </configSections>
      <entityFramework>
          <providers>
              <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
         </providers>
     </entityFramework>
     <connectionStrings>
         <add name="BlogContext"
               providerName="System.Data.SqlClient"
               connectionString="Server=xxx;Database=xxx;Integrated Security=False;User ID=sa;Password=xxx;"/>
     </connectionStrings>
 </configuration>

配置的数据库连接字符串配置项的name应该与你的Context类型的名称一致，例如本例中就应该配置为BlogContext