namespace Configer
{/// <summary>/// 网站信息配置节点/// </summary>public class WebConfigSection : ConfigurationSection{/// <summary>/// 网站名称/// </summary>[ConfigurationProperty("WebName", DefaultValue = "", IsRequired = true, IsKey = false)]public string WebName{get { return (string)this["WebName"]; }set { this["WebName"] = value; }}/// <summary>/// 网站域名/// </summary>[ConfigurationProperty("DoMain", DefaultValue = "", IsRequired = true, IsKey = false)]public string DoMain{get { return (string)this["DoMain"]; }set { this["DoMain"] = value; }}}
}

namespace Configer
{/// <summary>/// 网站配置信息工厂/// </summary>public class WebConfigManager{/// <summary>/// 配置信息实体/// </summary>public static readonly WebConfigSection Instance = GetSection();private static WebConfigSection GetSection(){WebConfigSection config = ConfigurationManager.GetSection("WebConfigSection") as WebConfigSection;if (config == null)throw new ConfigurationErrorsException();return config;}}
}

<?xml version="1.0" encoding="utf-8"?>
<configuration><configSections><section name="WebConfigSection" type="Configer.WebConfigSection, test"/></configSections><connectionStrings><add name="backgroundEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.\sqlexpress;Initial Catalog=background;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /></connectionStrings><WebConfigSection WebName="占占网站" DoMain="www.zhanzhan.com"  /><appSettings><add key="site" value="www.zzl.com"/></appSettings>
</configuration>

  static void Main(string[] args){Console.WriteLine(System.Configuration.ConfigurationManager.AppSettings["site"]);Console.WriteLine(WebConfigManager.Instance.DoMain);Console.WriteLine(WebConfigManager.Instance.WebName);}