C#中XML与对象之间的序列化、反序列化
2016-02-22 09:27
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using System; using System.IO; using System.Text; using System.Xml; using System.Xml.Serialization; namespace Xml.Utility { public static class XmlUtil { /// <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) { if (o == null) { throw new ArgumentNullException("o"); } if (encoding == null) { throw new ArgumentNullException("encoding"); } using (MemoryStream stream = new MemoryStream()) { XmlSerializer serializer = new XmlSerializer(o.GetType()); XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineChars = "\r\n"; settings.Encoding = encoding; settings.IndentChars = " "; settings.OmitXmlDeclaration = true; using (XmlWriter writer = XmlWriter.Create(stream, settings)) { //Create our own namespaces for the output XmlSerializerNamespaces ns = new XmlSerializerNamespaces(); //Add an empty namespace and empty value ns.Add("", ""); serializer.Serialize(writer, o, ns); writer.Close(); } stream.Position = 0; using (StreamReader reader = new StreamReader(stream, encoding)) { return reader.ReadToEnd(); } } } /// <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> /// 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"); } if (o == null) { throw new ArgumentNullException("o"); } if (encoding == null) { throw new ArgumentNullException("encoding"); } using (FileStream file = new FileStream(path, FileMode.Create, FileAccess.Write)) { 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(file, settings)) { serializer.Serialize(writer, o); writer.Close(); } } } /// <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); } } }
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