c# - Enterprise Library 4.1 的多个配置源？

Question

我们使用 entlib 4.1 中的缓存和日志应用程序 block 。我们希望将这两个配置保存在单独的文件中。我们怎样才能做到这一点？

看起来 entlib 总是使用 selectedSource 作为它的配置。

我尝试了以下方法:

<?xml version="1.0" encoding="utf-8" ?>    
<configuration> 
  <configSections>    
    <section name="enterpriseLibrary.ConfigurationSource" type="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceSection, Microsoft.Practices.EnterpriseLibrary.Common, Version=4.1.0.0, Culture=neutral, PublicKeyToken=9057346a2b2dcfc8" />

  </configSections>

  <enterpriseLibrary.ConfigurationSource selectedSource="messagesCache">    
    <sources>    
      <add name="messagesCache" filePath="Configuration\\messagesCache.config"  type="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource, Microsoft.Practices.EnterpriseLibrary.Common, Version=4.1.0.0, Culture=neutral, PublicKeyToken=9057346a2b2dcfc8" />    
      <add name="logging" filePath="Configuration\\logging.config"  type="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource, Microsoft.Practices.EnterpriseLibrary.Common, Version=4.1.0.0, Culture=neutral, PublicKeyToken=9057346a2b2dcfc8" />    
    </sources>

  </enterpriseLibrary.ConfigurationSource>    
</configuration>

但这不起作用，因为应用程序 block 始终使用 selectedSource 属性值。

Answer 1

如 External configuration files in Enterprise Library for .NET Framework 2.0 中所述:

[...] while you can configure as manyConfiguration Sources as you wantusing the tool, only one is ‘selected’to be the one which Enterprise Librarywill automatically use [...]

我所做的是使用 configSource 属性:

<configuration>
  <configSections>
    <section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
    <section name="exceptionHandling" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Configuration.ExceptionHandlingSettings, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
    <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
    <section name="validationConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Validation.Configuration.ValidationSettings, Microsoft.Practices.EnterpriseLibrary.Validation, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  </configSections>

  <loggingConfiguration configSource="logging.config"/>
  <exceptionHandlingConfiguration configSource="exceptionHandling.config"/>
  <dataConfiguration configSource="dataAccess.config"/>
  <validationConfiguration configSource="validation.config"/>
</configuration>

效果很好，但缺点是如果您使用配置工具编辑您的应用程序/网络配置文件并保存您的配置，它将保存在应用程序/网络配置文件中。