请问Entity Framework 怎么使用自定义连接字符串？

Question

数据库很多，webconfig里这样写不行吗？具体连哪个，指定DbConnection的ConnectionString属性不就行了？<configuration>
  <connectionStrings>
    <add name="ApplicationServices"
 connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
 providerName="System.Data.SqlClient" />
    <add name="DB1"
       connectionString="Data Source=xxx\xxxx;Initial Catalog=xxx;Integrated Security=False;User ID=xxx;Password=xxx;MultipleActiveResultSets=True"
       providerName="System.Data.SqlClient" />
    <add name="DB2"
       connectionString="Data Source=xxx;Initial Catalog=xxx;Integrated Security=False;User ID=xxx;Password=xxx;MultipleActiveResultSets=True"
       providerName="System.Data.SqlClient" />
</connectionStrings>

Answer 1

实在不行多建几个edmx文件，每一个对应不同的数据库连接。打开edmx文件，在空白处右击，选择属性就可以看到每个edmx文件对应的数据库连接了。

Answer 2

<configuration>
  <connectionStrings>
    <add name="HonorEntities" connectionString="metadata=res://*/HonorData.csdl|res://*/HonorData.ssdl|res://*/HonorData.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.;Initial Catalog=Honor;Persist Security Info=True;User ID=sa;Password=sa;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" />
  </connectionStrings>
</configuration>