新浪微博 XML 文件操作助手

TAG: 新浪微博 XML 文件操作助手 API

/// <summary> /// XML 文件操作助手 /// </summary> public class XmlHelper { private XmlDocument xmlDoc = null; public XmlHelper() { xmlDoc = new XmlDocument(); } /// <summary> /// 加载xml文件 /// </summary> /// <param name="fileName">xml 文件路径</param> public void Load(string fileName) { xmlDoc.Load(fileName); } /// <summary> /// 读取xml内容 /// </summary> /// <param name="xml">xml 内容</param> public void LoadXml(string xml) { xmlDoc.LoadXml(xml); } /// <summary> /// xpath 是否存在 /// </summary> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public bool IsExists(string xpath) { return xmlDoc.DocumentElement.SelectSingleNode(xpath) != null ? true : false; } /// <summary> /// xpath 是否存在 /// </summary> /// <param name="xn">节点</param> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public bool IsExists(XmlNode xn, string xpath) { return xn.SelectSingleNode(xpath) != null ? true : false; } /// <summary> /// 选择指定节点 /// </summary> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public XmlNodeList SelectNodes(string xpath) { return xmlDoc.DocumentElement.SelectNodes(xpath); } /// <summary> /// 选择指定节点 /// </summary> /// <param name="xn">节点</param> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public XmlNodeList SelectNodes(XmlNode xn, string xpath) { return xn.SelectNodes(xpath); } /// <summary> /// 选择单节点 /// </summary> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public string SelectSingleNode(string xpath) { return IsExists(xpath) ? xmlDoc.DocumentElement.SelectSingleNode(xpath).InnerText : string.Empty; } /// <summary> /// 选择单节点 /// </summary> /// <param name="xn">节点</param> /// <param name="xpath">xpath 路径</param> /// <returns></returns> public string SelectSingleNode(XmlNode xn, string xpath) { return IsExists(xn, xpath) ? xn.SelectSingleNode(xpath).InnerText : string.Empty; } }