如何在ASP.NET下使用xml反序列化、緩存依賴實現個性化配置文件的實時生效功能?

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如何在ASP.NET下使用xml反序列化、緩存依賴實現個性化配置文件的實時生效功能?

因為一些配置屬性比較多,存在多組屬性,因此結合xml解析、緩存技術,實現配置文化的自動解析、存入緩存、緩存依賴實時更新配置內容。

配置文件反序列化存入緩存的核心方法:


 public Class.Settings GetSettings()
 {
 if (HttpRuntime.Cache["settings"] != null)
 return (Class.Settings)HttpRuntime.Cache["settings"];
 string rootPath = GetPath();
 #region rootPath
 if (rootPath == "")
 {
 log.Write(MsgType.Fatal, "配置文件根目錄rootPath為空");
 return null;
 }
 else
 {
 if (!rootPath.EndsWith("\"))
 rootPath += "\";
 rootPath = rootPath + "settings\settings.config";
 }
 #endregion
 if (!File.Exists(rootPath))
 {
 log.Write(MsgType.Fatal, "配置文件根目錄rootPath為空");
 return null;
 }
 string content = File.ReadAllText(rootPath, Encoding.Default);
 Class.Settings model = PublicMethod.XmlSerialize.DeserializeXML<Class.Settings>(content);
 log.Write(MsgType.Information, "讀取配置文件");
 CacheDependency cd = new CacheDependency(rootPath);
 HttpRuntime.Cache.Add("settings", model, cd, DateTime.Now.AddMinutes(5), TimeSpan.Zero, CacheItemPriority.High, null);
 return model;
 }
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上面自動獲取rootPath的方法:


 /// <summary>
 /// 取當前根目錄的方法 
 /// </summary>
 private static string GetPath()
 {
 string rootPath = "";
 System.Diagnostics.Process p = System.Diagnostics.Process.GetCurrentProcess();
 //WebDev.WebServer visual studio web server
 //xxx.vhost Winform
 //w3wp IIS7
 //aspnet_wp IIS6
 //iisexpress vs2013
 string processName = p.ProcessName.ToLower();
 if (processName == "aspnet_wp" || processName == "w3wp" || processName == "webdev.webserver" || processName == "iisexpress")
 {
 if (System.Web.HttpContext.Current != null)
 rootPath = System.Web.HttpContext.Current.Server.MapPath("~/");
 else //當控件在定時器的觸發程序中使用時就為空
 {
 rootPath = System.AppDomain.CurrentDomain.BaseDirectory;
 }
 }
 return rootPath;
 }

Settings實體類的定義,要注意,這里的實體類要和settings配置文件對應,否則反序列化會出錯:


 [XmlRoot(Namespace = "", IsNullable = false, ElementName = "settings")]
 public class Settings
 {
 #region 屬性
 [XmlElement("logger")]
 public LoggerConfig logger { get; set; }
 #endregion
 #region 子類
 [XmlType(TypeName = "logger")]
 public class LoggerConfig
 {
 public string loglevel { get; set; }
 public string savepath { get; set; }
 } 
 #endregion
 }

settings.config的內容實例


 <?xml version='1.0' encoding='utf-8'?>
 <settings>
 <logger>
 <loglevel>0</loglevel>
 <savepath>d:\log</savepath>
 </logger>
 <queryurl>http://11.56.254.234:88/shashachaxunserver/shashachaxun</queryurl>
 <receiveurl>http://172.16.1.131:88/ThirdPay/ChinaUMS/xml.aspx</receiveurl>
 <turnurl>http://172.16.1.131:88/ThirdPay/ChinaUMS/query.aspx</turnurl>
 </chinaums>
 </settings>

以上就是本文的全部內容,希望本文的內容對大家的學習或者工作能帶來一定的幫助,同時也希望多多支持路飯!

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