创建 XML 解析器的简单替代方案（而非 LINQ）

创建 XML 解析器的简单替代方案（而非 LINQ）

这里提供了一种简单的方法来解析 XML 字符串，并将它的元素名称和值存储在 Hashtable 中，你可以使用 GetAttribute() 方法通过键调用它。

    public class Parse
    {
        Hashtable attributes;

        public void ParseURL(string xmlData)
        {
            try
            {
                string errorString = string.Empty;
                byte[] byteArray = new byte[xmlData.Length];
                System.Text.ASCIIEncoding encoding = new
                System.Text.ASCIIEncoding();
                byteArray = encoding.GetBytes(xmlData);
                attributes = new Hashtable();

                // 加载内存流
                MemoryStream memoryStream = new MemoryStream(byteArray);

                memoryStream.Seek(0, SeekOrigin.Begin);

                XmlTextReader reader = new XmlTextReader(memoryStream);
                while (reader.Read())
                {
                    switch (reader.NodeType)
                    {
                        case XmlNodeType.Element
                            string strURI = reader.NamespaceURI;
                            string strName = reader.Name;
                            if (reader.HasAttributes)
                            {
                                for (int i = 0; i < reader.AttributeCount; i++)
                                {
                                    reader.MoveToAttribute(i);
                                    if (!attributes.ContainsKey(reader.Name))
                                    {
                                        attributes.Add(reader.Name, reader.Value);
                                    }
                                }
                            }

                            break;

                        default
                            break;
                    }
                }
            }
            catch (XmlException e)
            {
                Console.WriteLine("发生错误: " + e.Message);
            }

        }

                public string GetAttribute(string key)
        {
            try
            {
                return attributes[key].ToString();
            }
            catch (XmlException e)
            {
                return "发生错误: " + e.Message;
            }
        }

  }