xml总结

using System; using System.Web; using System.Collections.Generic; using System.Linq; using System.Xml.Linq; using FantasyCMS.Extensions;

namespace FantasyCMS.BLL.XML {     public class BaseService<T> where T : class     {         public BaseService(string dic, string filePath, string elementName)         {             Dic = dic;             FileName = filePath;             ElementName = elementName;             string mtpath = HttpContext.Current.Server.MapPath(dic + filePath);             XMLPath = mtpath;             ElementName = elementName;             if (!System.IO.File.Exists(mtpath))             {                 if (!System.IO.Directory.Exists(HttpContext.Current.Server.MapPath(dic))) System.IO.Directory.CreateDirectory(HttpContext.Current.Server.MapPath(dic));                 XDocument xdoc = new XDocument(new XDeclaration("1.0", "UTF-8", "yes"));                 XElement Roots = new XElement(elementName);                 xdoc.Add(Roots);                 xdoc.Save(XMLPath);             }             Root = XElement.Load(XMLPath);         }

        private XElement Root;         private static string XMLPath;         private string ElementName;         private string Dic, FileName;

        public IEnumerable<XElement> FindList()         {             var list = Root.Elements(ElementName);             return list;         }

        public XElement Find(string name, string value)         {             return Root.Elements(ElementName).FirstOrDefault(m => m.Element(name).Value.Equals(value));         }

        public XElement FirstOrDefault()         {             return FindList().FirstOrDefault();         }

        public void Add(T entity)         {             Type t = typeof(T);             XElement db = new XElement(ElementName);             foreach (var item in t.GetProperties())             {                 if ("Id".Equals(item.Name)) db.Add(new XElement("Id", HtmlUtils.GetGuid()));                 else db.Add(new XElement(item.Name, t.GetProperty(item.Name).GetValue(entity, null)));             }             Root.Add(db);             Root.Save(XMLPath);         }

        public void Edit(T entity, string name, string value)         {             XElement db = Find(name, value);             if (db != null)             {                 Type t = typeof(T);                 foreach (var item in t.GetProperties())                 {                     if (t.GetProperty(item.Name).GetValue(entity, null) != null)                     {                         db.Element(item.Name).Value = t.GetProperty(item.Name).GetValue(entity, null).ToString();                     }                 }                 Root.Save(XMLPath);             }         }

        public void Remove(string name, string value)         {             XElement db = Find(name, value);             if (db != null)             {                 db.Remove();                 Root.Save(XMLPath);             }         }     } }