SubSonic 绑定多个数据库

<configSections>
    <section name="SubSonicService" type="SubSonic.SubSonicSection, SubSonic" allowDefinition="MachineToApplication" restartOnExternalChanges="true" />
  </configSections>
  <connectionStrings>
    <add name="A" connectionString="server=127.0.0.1;database=A;user id=A;password=A;max pool size=300;" providerName="System.Data.SqlClient" />
    <add name="B" connectionString="server=127.0.0.1;database=B;user id=B;password=B;max pool size=300;" providerName="System.Data.SqlClient" />
  </connectionStrings>
  <SubSonicService defaultProvider="A">
    <providers>
      <clear />
      <add name="A" type="SubSonic.SqlDataProvider, SubSonic" connectionStringName="A" generatedNamespace="Model.A" />
      <add name="B" type="SubSonic.SqlDataProvider, SubSonic" connectionStringName="B" generatedNamespace="Model.B"/> 
</providers> 
</SubSonicService>