xml 文件的增删改查
序列化和反序列化helper
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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml.Serialization; using System.IO; using System.Xml; // 此处代码来源于博客【在.net中读写config文件的各种方法】的示例代码 // http://www.cnblogs.com/fish-li/archive/2011/12/18/2292037.html namespace MyMVC { public static class XmlHelper { private static void XmlSerializeInternal(Stream stream, object o, Encoding encoding) { if( o == null ) throw new ArgumentNullException("o"); if( encoding == null ) throw new ArgumentNullException("encoding"); XmlSerializer serializer = new XmlSerializer(o.GetType()); XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineChars = "\r\n"; settings.Encoding = encoding; settings.IndentChars = " "; using( XmlWriter writer = XmlWriter.Create(stream, settings) ) { serializer.Serialize(writer, o); writer.Close(); } } /// <summary> /// 将一个对象序列化为XML字符串 /// </summary> /// <param name="o">要序列化的对象</param> /// <param name="encoding">编码方式</param> /// <returns>序列化产生的XML字符串</returns> public static string XmlSerialize(object o, Encoding encoding) { using( MemoryStream stream = new MemoryStream() ) { XmlSerializeInternal(stream, o, encoding); stream.Position = 0; using( StreamReader reader = new StreamReader(stream, encoding) ) { return reader.ReadToEnd(); } } } /// <summary> /// 将一个对象按XML序列化的方式写入到一个文件 /// </summary> /// <param name="o">要序列化的对象</param> /// <param name="path">保存文件路径</param> /// <param name="encoding">编码方式</param> public static void XmlSerializeToFile(object o, string path, Encoding encoding) { if( string.IsNullOrEmpty(path) ) throw new ArgumentNullException("path"); using( FileStream file = new FileStream(path, FileMode.Create, FileAccess.Write) ) { XmlSerializeInternal(file, o, encoding); } } /// <summary> /// 从XML字符串中反序列化对象 /// </summary> /// <typeparam name="T">结果对象类型</typeparam> /// <param name="s">包含对象的XML字符串</param> /// <param name="encoding">编码方式</param> /// <returns>反序列化得到的对象</returns> public static T XmlDeserialize<T>(string s, Encoding encoding) { if( string.IsNullOrEmpty(s) ) throw new ArgumentNullException("s"); if( encoding == null ) throw new ArgumentNullException("encoding"); XmlSerializer mySerializer = new XmlSerializer(typeof(T)); using( MemoryStream ms = new MemoryStream(encoding.GetBytes(s)) ) { using( StreamReader sr = new StreamReader(ms, encoding) ) { return (T)mySerializer.Deserialize(sr); } } } /// <summary> /// 读入一个文件,并按XML的方式反序列化对象。 /// </summary> /// <typeparam name="T">结果对象类型</typeparam> /// <param name="path">文件路径</param> /// <param name="encoding">编码方式</param> /// <returns>反序列化得到的对象</returns> public static T XmlDeserializeFromFile<T>(string path, Encoding encoding) { if( string.IsNullOrEmpty(path) ) throw new ArgumentNullException("path"); if( encoding == null ) throw new ArgumentNullException("encoding"); string xml = File.ReadAllText(path, encoding); return XmlDeserialize<T>(xml, encoding); } } }
http://www.cnblogs.com/mingmingruyuedlut/archive/2011/01/26/1945107.html
http://www.cnblogs.com/fish-li/archive/2013/05/05/3061816.html(序列化和反序列化)