C# XML序列化帮助类代码

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);

        }

    }