.Net 通用配置文件读取方法

去年在window service 插件服务插件开发时，曾经写过一篇.net 中读取自定义Config文件，那个配置文件通用读取方法，只适用于读取键值对，如下面示例所示：

展开
<configuration>
  <configSections>
    <sectionGroup name="WeiboClientSectionGroup">
      <section name="SinaSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="QQSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="SohuSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="NetEaseSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    </sectionGroup>
    <sectionGroup name="WeiboSectionGroup">
      <section name="SinaSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="QQSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="SohuSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
      <section name="NetEaseSection" type="System.Configuration.NameValueSectionHandler,System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    </sectionGroup>
  </configSections>
  <WeiboClientSectionGroup>
    <SinaSection>
      <add key="AccessToken" value=""/>
      <add key="AccessTokenSecret" value=""/>
      <add key="ResultFormat" value="Json"/>
    </SinaSection>
    <!--<QQSection>          <add key="AccessToken" value=""/>      <add key="AccessTokenSecret" value=""/>        <add key="ResultFormat" value="Json"/>        </QQSection>-->
    <QQSection>
      <add key="AccessToken" value=""/>
      <add key="AccessTokenSecret" value=""/>
      <add key="ResultFormat" value="Json"/>
    </QQSection>
    <SohuSection>
      <add key="AccessToken" value=""/>
      <add key="AccessTokenSecret" value=""/>
      <add key="ResultFormat" value="Json"/>
    </SohuSection>
    <NetEaseSection>
      <add key="AccessToken" value=""/>
      <add key="AccessTokenSecret" value=""/>
      <add key="ResultFormat" value="Json"/>
    </NetEaseSection>
  </WeiboClientSectionGroup>
  <WeiboSectionGroup>
    <SinaSection>
      <add key="AppKey" value=""/>
      <add key="AppSecret" value=""/>
      <add key="AuthorizeUri" value="http://api.t.sina.com.cn/oauth/authorize"/>
      <add key="RequestTokenUri" value="http://api.t.sina.com.cn/oauth/request_token"/>
      <add key="AccessTokenUri" value="http://api.t.sina.com.cn/oauth/access_token"/>
      <add key="CallBackUri" value="null"></add>
    </SinaSection>
    <QQSection>
      <add key="AppKey" value=""/>
      <add key="AppSecret" value=""/>
      <add key="AuthorizeUri" value="https://open.t.qq.com/cgi-bin/authorize"/>
      <add key="RequestTokenUri" value="https://open.t.qq.com/cgi-bin/request_token"/>
      <add key="AccessTokenUri" value="https://open.t.qq.com/cgi-bin/access_token"/>
      <add key="CallBackUri" value="null"></add>
    </QQSection>
    <SohuSection>
      <add key="AppKey" value=""/>
      <add key="AppSecret" value=""/>
      <add key="AuthorizeUri" value="http://api.t.sohu.com/oauth/authorize"/>
      <add key="RequestTokenUri" value="http://api.t.sohu.com/oauth/request_token"/>
      <add key="AccessTokenUri" value="http://api.t.sohu.com/oauth/access_token"/>
      <add key="CallBackUri" value="null"></add>
    </SohuSection>
    <NetEaseSection>
      <add key="AppKey" value=""/>
      <add key="AppSecret" value=""/>
      <add key="AuthorizeUri" value="http://api.t.163.com/oauth/authenticate"/>
      <add key="RequestTokenUri" value="http://api.t.163.com/oauth/request_token"/>
      <add key="AccessTokenUri" value="http://api.t.163.com/oauth/access_token"/>
      <add key="CallBackUri" value="null"></add>
    </NetEaseSection>
  </WeiboSectionGroup>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
</configuration>

这种读取方式不灵活，如果遇到复杂的数据结构就无法支持了，下面提供一个自定义处理器的方法达到通用配置的目的。

如有下面这样的配置文件：

展开
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="HtmlEntities" type="Ben.NetUtility.Web.UserControlToHtml.HtmlConfigSection,Ben.NetUtility"/>
  </configSections>
  <HtmlEntities>
    <HtmlEntity>
      <Name></Name>
      <Url></Url>
      <SecurityIdentification></SecurityIdentification>
    </HtmlEntity>
  </HtmlEntities>
</configuration>

只要需要三个步骤就可以完成读取上面的配置文件：

1、定义一个从ConfigEntityBase<T>继承的实体，如下所示：

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public class HtmlEntity : ConfigEntityBase<HtmlEntity>
    {
        public string Name { get; private set; }
        public string Url { get; private set; }
        public List<string> SecurityIdentification { get; private set; }
        public HtmlEntity()
        {
            SecurityIdentification = new List<string>();
        }

        public override HtmlEntity Parse(XmlNode node)
        {
            var entity = new HtmlEntity();
            foreach (XmlNode childNode in node.ChildNodes)
            {
                ..//解析对象
            }

            return entity;
        }
    }

2、定义一个Handler处理器，如下代码所示：

public class HtmlConfigSection:Config.ConfigurationSectionHandlerHelper<HtmlEntity>
    {
        
    }

3、定义读取配置工具类：

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public class HtmlConfig:Config.ConfigBase<List<HtmlEntity>>
    {
        public HtmlConfig():base("HtmlEntities",null){}

        public HtmlEntity this[string name]
        {
            get { return Section.FirstOrDefault(p => p.Name == name); }
        }
    }

通过上面的三个步骤，就完成了配置的读取，使用方法如下：

展开
var ConfigContent = new HtmlConfig();

基础类库下载：Config.rar