c#正反序列化XML文件示例(xml序列化)

namespace GlobalTimes.Framework
{
    /// <summary>
    /// XML文本通用解释器
    /// </summary>
    public class XmlHelper
    {
        private const string EncodePattern = "<[^>]+?encoding=\"(?<enc>[^<>\\s]+)\"[^>]*?>";
        private static readonly Encoding DefEncoding = Encoding.GetEncoding("gb2312");
        private static readonly Regex RegRoot = new Regex("<(\\w+?)[ >]", RegexOptions.Compiled);
        private static readonly Regex RegEncode = new Regex(EncodePattern,
                                                            RegexOptions.Compiled | RegexOptions.IgnoreCase);
        private static readonly Dictionary<string, XmlSerializer> Parsers = new Dictionary<string, XmlSerializer>();
        #region 解析器

        static Encoding GetEncoding(string input)
        {
            var match = RegEncode.Match(input);
            if (match.Success)
            {
                try
                {
                    return Encoding.GetEncoding(match.Result("${enc}"));
                }
// ReSharper disable EmptyGeneralCatchClause
                catch (Exception)
// ReSharper restore EmptyGeneralCatchClause
                {
                }
            }
            return DefEncoding;
        }

        /// <summary>
        /// 解析XML文件
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="fileName">文件名</param>
        /// <returns>类的实例</returns>
        public T ParseFile<T>(string fileName) where T : class, new()
        {
            var info = new FileInfo(fileName);
            if (!info.Extension.Equals(".xml", StringComparison.CurrentCultureIgnoreCase) || !info.Exists)
            {
                throw new ArgumentException("输入的文件名有误！");
            }
            string body;
            var tempFileName = PathHelper.PathOf("temp", Guid.NewGuid().ToString().Replace("-", "") + ".xml");
            var fi = new FileInfo(tempFileName);
            var di = fi.Directory;
            if (di != null && !di.Exists)
            {
                di.Create();
            }
            File.Copy(fileName, tempFileName);
            using (Stream stream = File.Open(tempFileName, FileMode.Open, FileAccess.Read))
            {
                using (TextReader reader = new StreamReader(stream, DefEncoding))
                {
                    body = reader.ReadToEnd();
                }
            }
            File.Delete(tempFileName);
            var enc = GetEncoding(body);
            if (!Equals(enc, DefEncoding))
            {
                var data = DefEncoding.GetBytes(body);
                var dest = Encoding.Convert(DefEncoding, enc, data);
                body = enc.GetString(dest);
            }
            return Parse<T>(body, enc);
        }

        /// <summary>
        /// 将对象序列化为XML文件
        /// </summary>
        /// <param name="fileName">文件名</param>
        /// <param name="obj">对象</param>
        /// <returns></returns>
        /// <exception cref="ArgumentException">文件名错误异常</exception>
        public bool SaveFile(string fileName, object obj)