.Net配置文件——统一节点配置管理
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2022-04-20 21:53:44
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对于.Net中的自定义节点,如果要单独处理,就要为这个节点添加一个指定的类,如果我们在一个应用程序中,定义了很多个自定义节点的话,还按照这样做,就会多出很多个处理类来,为了避免太多的类,我们将所有自定节点都指定一个自定义节点作为入口,然后只写一个处理类,以此为入口,读取其他节点。
例如,配置文件只定义一个入口节点:
<!--通用配置存储方法--> <traceFact type="ClassLib.ConfigManager,ClassLib"> <forum name="TraceFact.Net Community"> <root url="http:192.168.24.204"/> <replyCount>20</replyCount> <pageSize>30</pageSize> <offlineTime>20</offlineTime> </forum> <blog> <root url="http:asdakfj.com"/> <urlMappings> <rewriteRule> <request>~/(\d{4})/Default\.aspx</request> <sendTo>~BlogDetail.aspx?year=$1</sendTo> </rewriteRule> </urlMappings> </blog> <mailServer address="www.baidu.com" userName="lhc" password="234r32r"/> <greetingStrategy type="ClassLib.ChineseGreeting,ClassLib"/> </traceFact>
处理类:
/// <summary> /// Class GeneralConfigHandler /// </summary> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 10:50:40</remarks> public class GeneralConfigHandler:IConfigurationSectionHandler { /// <summary> /// 创建配置节处理程序。 /// </summary> /// <param name="parent">父对象。</param> /// <param name="configContext">配置上下文对象。</param> /// <param name="section">节 XML 节点。</param> /// <returns>创建的节处理程序对象。</returns> /// <exception cref="System.NotImplementedException"></exception> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 10:50:42</remarks> public object Create(object parent, object configContext, XmlNode section) { //获取节点type属性的值 Type t=Type.GetType(section.Attributes["type"].Value);//返回configManager //直接将section进行传递 object[] paramters={section}; //将要创建的类型实例 object obj = null; try { obj = Activator.CreateInstance(t, paramters);//使用有参数的构造函数 } catch (Exception) { return null; } return obj; } }
上面的类主要是为了实现创建具体配置节点管理类,在配置节点的管理类中,存有各个子节点类的引用。
/// <summary> /// GeneralConfigHandler通过反射动态创建的,它实际上只是作为一个容器 ///这个类仅仅是作为一个容器,包含对其下具体节点配置的引用,并通过traceFact根节点,获取traceFact其下的子节点,然后再创建用于映射具体的子节点的类型实例 /// </summary> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:06:21</remarks> public class ConfigManager { private XmlNode section; private FroumConfiguration forumConfig; //对于其他节点的处理强类型访问类也定义为成员变量放在这里。。。。。。。 public FroumConfiguration froumConfig { get { return forumConfig; } } public ConfigManager(XmlNode section) { this.section = section; forumConfig = new FroumConfiguration(section.SelectSingleNode("forum")); } } /// <summary> /// 具体子节点配置forum结点:处理<forum name="TraceFact.Net Community"> /// </summary> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:22:08</remarks> public class FroumConfiguration{ private XmlNode forumNode; //将forum结点传递进来 public FroumConfiguration(XmlNode section){ this.forumNode=section; } /// <summary> /// Gets the name. <forum name="TraceFact.Net Community"> /// </summary> /// <value>The name.</value> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:58:00</remarks> public string Name{ get{ return forumNode.Attributes["name"].Value; } } /// <summary> /// Gets the root URL.:<root url="http:192.168.24.204"/> /// </summary> /// <value>The root URL.</value> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:56:08</remarks> public string RootUrl{ get{ return forumNode.SelectSingleNode("root").Attributes["url"].Value; } } /// <summary> /// Gets the size of the page.<pageSize>30</pageSize> /// </summary> /// <value>The size of the page.</value> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:57:18</remarks> public int PageSize{ get{ return int.Parse(forumNode.SelectSingleNode("pageSize").InnerText); } } /// <summary> /// Gets the reply count.<replyCount>20</replyCount> /// </summary> /// <value>The reply count.</value> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:57:03</remarks> public int ReplyCount{ get{ return int.Parse(forumNode.SelectSingleNode("replyCount").InnerText); } } /// <summary> /// Gets the offline time.<offlineTime>20</offlineTime> /// </summary> /// <value>The offline time.</value> /// <remarks>Editor:v-liuhch CreateTime:2015/7/1 14:57:35</remarks> public int OfflineTime { get { return int.Parse(forumNode.SelectSingleNode("offlineTime").InnerText); } } }
这样,我们使用的时候,每次都用这一个类来实现对节点的访问:
ConfigManager config = ConfigurationManager.GetSection("traceFact") as ConfigManager; //取值 ltrName.Text = config.froumConfig.Name; ltrOfflineTime.Text = config.froumConfig.OfflineTime.ToString(); ltrPageSize.Text = config.froumConfig.PageSize.ToString(); ltrReplyCount.Text = config.froumConfig.ReplyCount.ToString(); ltrRootUrl.Text = config.froumConfig.RootUrl.ToString();
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