xml序列化和反序列化代码

public class XmlUtil
  {
      #region 反序列化 

      /// <summary> 
      /// 反序列化 
      /// </summary> 
      /// <param name="type">类型</param> 
      /// <param name="xml">XML字符串</param> 
      /// <returns></returns> 
      public static object Deserialize(Type type, string xml)
      {
          try
          {
              using (StringReader sr = new StringReader(xml))
              {
                  XmlSerializer xmldes = new XmlSerializer(type);

                  return xmldes.Deserialize(sr);
              }
          }
          catch (Exception e)
          {
              return null;

          }
      }
      #endregion

      #region 序列化 

      /// <summary> 
      /// 序列化 
      /// </summary> 
      /// <param name="type">类型</param> 
      /// <param name="obj">对象</param> 
      /// <returns></returns> 
      public static string Serializer(Type type, object obj)
      {
          MemoryStream Stream = new MemoryStream();
          XmlSerializer xml = new XmlSerializer(type);
          try
          {
              //序列化对象 
              xml.Serialize(Stream, obj);
          }
          catch (InvalidOperationException)
          {
              throw;
          }

          Stream.Position = 0;
          StreamReader sr = new StreamReader(Stream);
          string str = sr.ReadToEnd();

          sr.Dispose();
          Stream.Dispose();
          
          return str;
      }
      #endregion
  }