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; }
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>
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