ASP.NET下使用xml反序列化、缓存依赖实现个性化配置文件的实时生效

时间:2022-08-29 15:06:38

因为一些配置属性比较多,存在多组属性,因此结合xml解析、缓存技术,实现配置文化的自动解析、存入缓存、缓存依赖实时更新配置内容。

配置文件反序列化存入缓存的核心方法:

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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, "配置文件根目录rootPath为空");
  return null;
 }
 else
 {
  if (!rootPath.EndsWith("\\"))
  rootPath += "\\";
  rootPath = rootPath + "settings\\settings.config";
 }
 #endregion
 if (!File.Exists(rootPath))
 {
  log.Write(MsgType.Fatal, "配置文件根目录rootPath为空");
  return null;
 }
 string content = File.ReadAllText(rootPath, Encoding.Default);
 Class.Settings model = PublicMethod.XmlSerialize.DeserializeXML<Class.Settings>(content);
 log.Write(MsgType.Information, "读取配置文件");
 CacheDependency cd = new CacheDependency(rootPath);
 HttpRuntime.Cache.Add("settings", model, cd, DateTime.Now.AddMinutes(5), TimeSpan.Zero, CacheItemPriority.High, null);
 return model;
 }

上面自动获取rootPath的方法:

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/// <summary>
/// 取当前根目录的方法
/// </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 //当控件在定时器的触发程序中使用时就为空
 {
 rootPath = System.AppDomain.CurrentDomain.BaseDirectory;
 }
}
return rootPath;
}

Settings实体类的定义,要注意,这里的实体类要和settings配置文件对应,否则反序列化会出错:

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

settings.config的内容实例

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<?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内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,同时也希望多多支持服务器之家!

原文链接:http://huisky.com/blog/17011922322264