使用IConfigurationSectionHandler在web.config中增加自定义配置

一. 场景
    这里仅举一个简单应用的例子，我希望在web.config里面增加网站的基本信息，如：网站名称，网站版本号，是否将网站暂时关闭等。
二. 基本实现方法

需要建立一个类项目Tristan.SeeCustomConfig，和一个Web站点用来测试，如下所示

1. 定义配置节点对应的类：SiteSetting
    代码片段：
using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace RobsunConfigSectionHandler{ public class RobsunPara { #region code private string _path = ""; private string _companyName = ""; private bool _isPrivate = false; public string Path { get{ return _path; } set{ _path = value; } } public string CompanyName { get{ return _companyName; } set{ _companyName = value; } } public bool IsPrivate { get{ return _isPrivate; } set{ _isPrivate = value; } } #endregion }}  

2. 实现IConfigurationSectionHandler接口：SiteSettingHandler
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Configuration;using System.Xml;namespace RobsunConfigSectionHandler{ public class RobsunParaSectionHandler:IConfigurationSectionHandler { public static string path = string.Empty; public object Create(object parent, object configContext, XmlNode section) { RobsunPara para = new RobsunPara(); foreach (XmlNode xn in section.ChildNodes) { switch (xn.Name) { case "path": para.Path = xn.SelectSingleNode("@value").InnerText; path = para.Path; break; case "companyName": para.CompanyName = xn.SelectSingleNode("@value").InnerText; break; case "isPrivate": para.IsPrivate = bool.Parse(xn.SelectSingleNode("@attribute").InnerText); break; } } return para; } }}

3. 在web.config中进行配置
在<configSections></configSections>里面增加一个节点：
<section name="siteSetting" type="Tristan.SeeCustomConfig.SiteSettingHandler"/>
    name：指定我们将要增加的节点名为"siteSetting"，接下来会使用它来编写配置节点
    type：指定处理这个配置节点的handler，这个类，我们在前面已经把代码实现了
    然后在<configuration><configuration>里面增加一段xml：
<siteSetting>
        <siteName>遇见未来</siteName>
        <siteVersion>1.0</siteVersion>
    <closed>false</closed>
    </siteSetting>
完整代码见下图：

4. 看看效果吧
    随便建一个页面在后台代码里写几行代码做个测试：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;//导入命名空间using Tristan.SeeCustomConfig;using System.Configuration;namespace WebApplication1{ public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { SiteSetting site = ConfigurationManager.GetSection("siteSetting") as SiteSetting; Response.Write(site.SiteName + "," + site.SiteVersion + "," + site.Closed.ToString()); } }}  

运行结果：

遇见未来,1.0,False

三. 使用XML反序列化
1. 修改SiteSetting
using System;using System.Collections.Generic;using System.Linq;using System.Text;//导入命名空间using System.Xml.Serialization;namespace Tristan.SeeCustomConfig{ //public class SiteSetting //{ // public string SiteName { get; set; } // public string SiteVersion { get; set; } // public bool Closed { get; set; } //} [Serializable] [XmlRoot("siteSetting")] public class SiteSetting { [XmlElement("siteName", typeof(string))] public string SiteName { get; set; } [XmlElement("siteVersion", typeof(string))] public string SiteVersion { get; set; } [XmlElement("closed", typeof(Boolean))] public bool Closed { get; set; } }}

2. 修改SiteSettingHandler
using System;using System.Collections.Generic;using System.Linq;using System.Text;//导入命名空间using System.Configuration;using System.Xml;using System.Xml.Serialization;using System.IO;namespace Tristan.SeeCustomConfig{ class SiteSettingHandler: IConfigurationSectionHandler { #region IConfigurationSectionHandler Members public object Create(object parent, object configContext, System.Xml.XmlNode section) { //string siteName = section.SelectSingleNode("siteName").InnerText; //string siteVersiton = section.SelectSingleNode("siteVersion").InnerText; //bool closed = Convert.ToBoolean(section.SelectSingleNode("closed").InnerText); //return new SiteSetting() { SiteName = siteName, SiteVersion = siteVersiton }; string typeName = ((XmlElement)section).GetAttribute("type"); XmlSerializer xz = new XmlSerializer(Type.GetType(typeName)); using (StringReader sr = new StringReader(section.OuterXml)) { return xz.Deserialize(sr); } } #endregion }}

3. 修改web.config中的配置
siteSetting加上属性type="Tristan.SeeCustomConfig.SiteSetting"

4. 再来看看
    不修改测试代码，得到了一样的效果 ：）

 

参考：

http://blog.csdn.net/zyc21st/archive/2004/12/09/210990.aspx

http://www.pin5i.com/showtopic-16217.html

http://www.pin5i.com/showtopic-16217.html