将xml文件转换成数据库

/// <summary>
    /// 将xml文件转换成数据库
    /// </summary>
    /// <param name="xmlData"></param>
    /// <returns></returns>
    private static DataSet ConvertXMLToDataSet(string xmlData)
    {
        StringReader stream = null;
        XmlTextReader reader = null;
        try
        {
            DataSet xmlDS = new DataSet();
            stream = new StringReader(xmlData);
            reader = new XmlTextReader(stream);
            xmlDS.ReadXml(reader);
            return xmlDS;
        }
        catch (Exception ex)
        {
            string strTest = ex.Message;
            return null;
        }
        finally
        {
            if (reader != null)
                reader.Close();
        }
    }