C#实现的xml操作类完整实例

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Xml;
using System.Text;
namespace MSCL
{
  /// <summary>
  /// XML 操作基类
  /// </summary>
  public class XmlHelper : IDisposable
  {
    //以下为单一功能的静态类
    #region 读取XML到DataSet
    /**//**************************************************
     * 函数名称:GetXml(string XmlPath)
     * 功能说明:读取XML到DataSet
     * 参  数:XmlPath:xml文档路径
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDnsConfig/DnsConfig.xml"); //获取xml路径
     *     DataSet ds = EC.XmlObject.GetXml(xmlPath); //读取xml到DataSet中
     ************************************************/
    /**//// <summary>
    /// 功能:读取XML到DataSet中
    /// </summary>
    /// <param name="XmlPath">xml路径</param>
    /// <returns>DataSet</returns>
    public static DataSet GetXml(string XmlPath)
    {
      DataSet ds = new DataSet();
      ds.ReadXml(@XmlPath);
      return ds;
    }
    #endregion
    #region 读取xml文档并返回一个节点
    /**//**************************************************
     * 函数名称:ReadXmlReturnNode(string XmlPath,string Node)
     * 功能说明:读取xml文档并返回一个节点:适用于一级节点
     * 参  数: XmlPath:xml文档路径;Node 返回的节点名称
     * 适应用Xml:<?xml version="1.0" encoding="utf-8" ?>
     *      <root>
     *        <dns1>ns1.everdns.com</dns1>
     *     </root>
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDnsConfig/DnsConfig.xml"); //获取xml路径
     *     Response.Write(XmlObject.ReadXmlReturnNode(xmlPath, "mailmanager"));
     ************************************************/
    /**//// <summary>
    /// 读取xml文档并返回一个节点:适用于一级节点
    /// </summary>
    /// <param name="XmlPath">xml路径</param>
    /// <param name="NodeName">节点</param>
    /// <returns></returns>
    public static string ReadXmlReturnNode(string XmlPath, string Node)
    {
      XmlDocument docXml = new XmlDocument();
      docXml.Load(@XmlPath);
      XmlNodeList xn = docXml.GetElementsByTagName(Node);
      return xn.Item(0).InnerText.ToString();
    }
    #endregion
    #region 查找数据,返回一个DataSet
    /**//**************************************************
     * 函数名称:GetXmlData(string xmlPath, string XmlPathNode)
     * 功能说明:查找数据,返回当前节点的所有下级节点,填充到一个DataSet中
     * 参  数:xmlPath:xml文档路径;XmlPathNode:当前节点的路径
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     DataSet ds = new DataSet();
     *     ds = XmlObject.GetXmlData(xmlPath, "root/items");//读取当前路径
     *     this.GridView1.DataSource = ds;
     *     this.GridView1.DataBind();
     *     ds.Clear();
     *     ds.Dispose();
     * Xml示例:
     *     <?xml version="1.0" encoding="utf-8" ?>
     *      <root>
     *       <items name="xinnet">
     *        <url>http://www.paycenter.com.cn/cgi-bin/</url>
     *        <port>80</port>
     *       </items>
     *      </root>
     ************************************************/
    /**//// <summary>
    /// 查找数据,返回当前节点的所有下级节点,填充到一个DataSet中
    /// </summary>
    /// <param name="xmlPath">xml文档路径</param>
    /// <param name="XmlPathNode">节点的路径:根节点/父节点/当前节点</param>
    /// <returns></returns>
    public static DataSet GetXmlData(string xmlPath, string XmlPathNode)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      DataSet ds = new DataSet();
      StringReader read = new StringReader(objXmlDoc.SelectSingleNode(XmlPathNode).OuterXml);
      ds.ReadXml(read);
      return ds;
    }
    #endregion
    #region 更新Xml节点内容
    /**//**************************************************
     * 函数名称:XmlNodeReplace(string xmlPath,string Node,string Content)
     * 功能说明:更新Xml节点内容
     * 参  数:xmlPath:xml文档路径;Node:当前节点的路径;Content:内容
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     XmlObject.XmlNodeReplace(xmlPath, "root/test", "56789"); //更新节点内容
     ************************************************/
    /**//// <summary>
    /// 更新Xml节点内容
    /// </summary>
    /// <param name="xmlPath">xml路径</param>
    /// <param name="Node">要更换内容的节点:节点路径 根节点/父节点/当前节点</param>
    /// <param name="Content">新的内容</param>
    public static void XmlNodeReplace(string xmlPath, string Node, string Content)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      objXmlDoc.SelectSingleNode(Node).InnerText = Content;
      objXmlDoc.Save(xmlPath);
    }
    #endregion
    #region 删除XML节点和此节点下的子节点
    /**//**************************************************
     * 函数名称:XmlNodeDelete(string xmlPath,string Node)
     * 功能说明:删除XML节点和此节点下的子节点
     * 参  数:xmlPath:xml文档路径;Node:当前节点的路径;
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     XmlObject.XmlNodeDelete(xmlPath, "root/test"); //删除当前节点
     ************************************************/
    /**//// <summary>
    /// 删除XML节点和此节点下的子节点
    /// </summary>
    /// <param name="xmlPath">xml文档路径</param>
    /// <param name="Node">节点路径</param>
    public static void XmlNodeDelete(string xmlPath, string Node)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      string mainNode = Node.Substring(0, Node.LastIndexOf("/"));
      objXmlDoc.SelectSingleNode(mainNode).RemoveChild(objXmlDoc.SelectSingleNode(Node));
      objXmlDoc.Save(xmlPath);
    }
    #endregion
    #region 插入一个节点和此节点的子节点
    /**//**************************************************
     * 函数名称:XmlInsertNode(string xmlPath, string MailNode, string ChildNode, string Element,string Content)
     * 功能说明:插入一个节点和此节点的字节点
     * 参  数:xmlPath:xml文档路径;MailNode:当前节点的路径;ChildNode:新插入的节点;Element:插入节点的子节点;Content:子节点的内容
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     XmlObject.XmlInsertNode(xmlPath, "root/test","test1","test2","测试内容"); //插入一个节点和此节点的字节点
     * 生成的XML格式为
     *     <test>
     *        <test1>
     *          <test2>测试内容</test2>
     *        </test1>
     *      </test>
     ************************************************/
    /**//// <summary>
    /// 插入一个节点和此节点的子节点
    /// </summary>
    /// <param name="xmlPath">xml路径</param>
    /// <param name="MailNode">当前节点路径</param>
    /// <param name="ChildNode">新插入节点</param>
    /// <param name="Element">插入节点的子节点</param>
    /// <param name="Content">子节点的内容,已经应用CDATA</param>
    public static void XmlInsertNode(string xmlPath, string MailNode, string ChildNode, string Element, string Content)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      XmlNode objRootNode = objXmlDoc.SelectSingleNode(MailNode);
      XmlElement objChildNode = objXmlDoc.CreateElement(ChildNode);
      objRootNode.AppendChild(objChildNode);
      XmlElement objElement = objXmlDoc.CreateElement(Element);
      XmlCDataSection xcds = objXmlDoc.CreateCDataSection(Content);
      objElement.AppendChild(xcds);
      objChildNode.AppendChild(objElement);
      objXmlDoc.Save(xmlPath);
    }
    #endregion
    #region 插入一节点,带一属性
    /**//**************************************************
     * 函数名称:XmlInsertElement(string xmlPath, string MainNode, string Element, string Attrib, string AttribContent, string Content)
     * 功能说明:插入一节点,带一属性
     * 参  数:xmlPath:xml文档路径;MailNode:当前节点的路径;Element:新插入的节点;Attrib:属性名称;AttribContent:属性值;Content:节点的内容
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     XmlObject.XmlInsertElement(xmlPath, "root/test", "test1", "Attrib", "属性值", "节点内容"); //插入一节点,带一属性
     * 生成的XML格式为
     *     <test>
     *       <test1 Attrib="属性值">节点内容</test1>
     *     </test>
     ************************************************/
    /**//// <summary>
    /// 插入一节点,带一属性
    /// </summary>
    /// <param name="xmlPath">Xml文档路径</param>
    /// <param name="MainNode">当前节点路径</param>
    /// <param name="Element">新节点</param>
    /// <param name="Attrib">属性名称</param>
    /// <param name="AttribContent">属性值</param>
    /// <param name="Content">新节点值</param>
    public static void XmlInsertElement(string xmlPath, string MainNode, string Element, string Attrib, string AttribContent, string Content)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      XmlNode objNode = objXmlDoc.SelectSingleNode(MainNode);
      XmlElement objElement = objXmlDoc.CreateElement(Element);
      objElement.SetAttribute(Attrib, AttribContent);
      objElement.InnerText = Content;
      objNode.AppendChild(objElement);
      objXmlDoc.Save(xmlPath);
    }
    #endregion
    #region 插入一节点不带属性
    /**//**************************************************
     * 函数名称:XmlInsertElement(string xmlPath, string MainNode, string Element, string Content)
     * 功能说明:插入一节点不带属性
     * 参  数:xmlPath:xml文档路径;MailNode:当前节点的路径;Element:新插入的节点;Content:节点的内容
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("/EBDomainConfig/DomainConfig.xml"); //获取xml路径
     *     XmlObject.XmlInsertElement(xmlPath, "root/test", "text1", "节点内容"); //插入一节点不带属性
     * 生成的XML格式为
     *     <test>
     *         <text1>节点内容</text1>
     *     </test>
     ************************************************/
    public static void XmlInsertElement(string xmlPath, string MainNode, string Element, string Content)
    {
      XmlDocument objXmlDoc = new XmlDocument();
      objXmlDoc.Load(xmlPath);
      XmlNode objNode = objXmlDoc.SelectSingleNode(MainNode);
      XmlElement objElement = objXmlDoc.CreateElement(Element);
      objElement.InnerText = Content;
      objNode.AppendChild(objElement);
      objXmlDoc.Save(xmlPath);
    }
    #endregion
    //必须创建对象才能使用的类
    private bool _alreadyDispose = false;
    private XmlDocument xmlDoc = new XmlDocument();
    private XmlNode xmlNode;
    private XmlElement xmlElem;
    #region 构造与释构
    public XmlHelper()
    {
    }
    ~XmlHelper()
    {
      Dispose();
    }
    protected virtual void Dispose(bool isDisposing)
    {
      if (_alreadyDispose) return;
      if (isDisposing)
      {
        //
      }
      _alreadyDispose = true;
    }
    #endregion
    #region IDisposable 成员
    public void Dispose()
    {
      Dispose(true);
      GC.SuppressFinalize(this);
    }
    #endregion
    #region 创建xml文档
    /**//**************************************************
     * 对象名称:XmlObject
     * 功能说明:创建xml文档
     * 使用示列:
     *     using EC; //引用命名空间
     *     string xmlPath = Server.MapPath("test.xml");
     *     XmlObject obj = new XmlObject();
     *     创建根节点
     *     obj.CreateXmlRoot("root");
     *     // 创建空节点
     *     //obj.CreatXmlNode("root", "Node");
     *     //创建一个带值的节点
     *     //obj.CreatXmlNode("root", "Node", "带值的节点");
     *     //创建一个仅带属性的节点
     *     //obj.CreatXmlNode("root", "Node", "Attribe", "属性值");
     *     //创建一个仅带两个属性值的节点
     *     //obj.CreatXmlNode("root", "Node", "Attribe", "属性值", "Attribe2", "属性值2");
     *     //创建一个带属性值的节点值的节点
     *     // obj.CreatXmlNode("root", "Node", "Attribe", "属性值","节点值");
     *     //在当前节点插入带两个属性值的节点
     *     obj.CreatXmlNode("root", "Node", "Attribe", "属性值", "Attribe2", "属性值2","节点值");
     *     obj.XmlSave(xmlPath);
     *     obj.Dispose();
     ************************************************/
    #region 创建一个只有声明和根节点的XML文档
    /**//// <summary>
    /// 创建一个只有声明和根节点的XML文档
    /// </summary>
    /// <param name="root"></param>
    public void CreateXmlRoot(string root)
    {
      //加入XML的声明段落
      xmlNode = xmlDoc.CreateNode(XmlNodeType.XmlDeclaration, "", "");
      xmlDoc.AppendChild(xmlNode);
      //加入一个根元素
      xmlElem = xmlDoc.CreateElement("", root, "");
      xmlDoc.AppendChild(xmlElem);
    }
    #endregion
    #region 在当前节点下插入一个空节点节点
    /**//// <summary>
    /// 在当前节点下插入一个空节点节点
    /// </summary>
    /// <param name="mainNode">当前节点路径</param>
    /// <param name="node">节点名称</param>
    public void CreatXmlNode(string mainNode, string node)
    {
      XmlNode MainNode = xmlDoc.SelectSingleNode(mainNode);
      XmlElement objElem = xmlDoc.CreateElement(node);
      MainNode.AppendChild(objElem);
    }
    #endregion
    #region 在当前节点插入一个仅带值的节点
    /**//// <summary>
    /// 在当前节点插入一个仅带值的节点
    /// </summary>
    /// <param name="mainNode">当前节点</param>
    /// <param name="node">新节点</param>
    /// <param name="content">新节点值</param>
    public void CreatXmlNode(string mainNode, string node, string content)
    {
      XmlNode MainNode = xmlDoc.SelectSingleNode(mainNode);
      XmlElement objElem = xmlDoc.CreateElement(node);
      objElem.InnerText = content;
      MainNode.AppendChild(objElem);
    }
    #endregion
    #region 在当前节点的插入一个仅带属性值的节点
    /**//// <summary>
    /// 在当前节点的插入一个仅带属性值的节点
    /// </summary>
    /// <param name="MainNode">当前节点或路径</param>
    /// <param name="Node">新节点</param>
    /// <param name="Attrib">新节点属性名称</param>
    /// <param name="AttribValue">新节点属性值</param>
    public void CreatXmlNode(string MainNode, string Node, string Attrib, string AttribValue)
    {
      XmlNode mainNode = xmlDoc.SelectSingleNode(MainNode);
      XmlElement objElem = xmlDoc.CreateElement(Node);
      objElem.SetAttribute(Attrib, AttribValue);
      mainNode.AppendChild(objElem);
    }
    #endregion
    #region 创建一个带属性值的节点值的节点
    /**//// <summary>
    /// 创建一个带属性值的节点值的节点
    /// </summary>
    /// <param name="MainNode">当前节点或路径</param>
    /// <param name="Node">节点名称</param>
    /// <param name="Attrib">属性名称</param>
    /// <param name="AttribValue">属性值</param>
    /// <param name="Content">节点传情</param>
    public void CreatXmlNode(string MainNode, string Node, string Attrib, string AttribValue, string Content)
    {
      XmlNode mainNode = xmlDoc.SelectSingleNode(MainNode);
      XmlElement objElem = xmlDoc.CreateElement(Node);
      objElem.SetAttribute(Attrib, AttribValue);
      objElem.InnerText = Content;
      mainNode.AppendChild(objElem);
    }
    #endregion
    #region 在当前节点的插入一个仅带2个属性值的节点
    /**//// <summary>
    /// 在当前节点的插入一个仅带2个属性值的节点
    /// </summary>
    /// <param name="MainNode">当前节点或路径</param>
    /// <param name="Node">节点名称</param>
    /// <param name="Attrib">属性名称一</param>
    /// <param name="AttribValue">属性值一</param>
    /// <param name="Attrib2">属性名称二</param>
    /// <param name="AttribValue2">属性值二</param>
    public void CreatXmlNode(string MainNode, string Node, string Attrib, string AttribValue, string Attrib2, string AttribValue2)
    {
      XmlNode mainNode = xmlDoc.SelectSingleNode(MainNode);
      XmlElement objElem = xmlDoc.CreateElement(Node);
      objElem.SetAttribute(Attrib, AttribValue);
      objElem.SetAttribute(Attrib2, AttribValue2);
      mainNode.AppendChild(objElem);
    }
    #endregion
    #region 在当前节点插入带两个属性的节点
    /**//// <summary>
    /// 在当前节点插入带两个属性的节点
    /// </summary>
    /// <param name="MainNode">当前节点或路径</param>
    /// <param name="Node">节点名称</param>
    /// <param name="Attrib">属性名称一</param>
    /// <param name="AttribValue">属性值一</param>
    /// <param name="Attrib2">属性名称二</param>
    /// <param name="AttribValue2">属性值二</param>
    /// <param name="Content">节点值</param>
    public void CreatXmlNode(string MainNode, string Node, string Attrib, string AttribValue, string Attrib2, string AttribValue2, string Content)
    {
      XmlNode mainNode = xmlDoc.SelectSingleNode(MainNode);
      XmlElement objElem = xmlDoc.CreateElement(Node);
      objElem.SetAttribute(Attrib, AttribValue);
      objElem.SetAttribute(Attrib2, AttribValue2);
      objElem.InnerText = Content;
      mainNode.AppendChild(objElem);
    }
    #endregion
    #region 保存Xml
    /**//// <summary>
    /// 保存Xml
    /// </summary>
    /// <param name="path">保存的当前路径</param>
    public void XmlSave(string path)
    {
      xmlDoc.Save(path);
    }
    #endregion
    #endregion
    #region 根据父节点属性值读取子节点值
    /**//**************************************************
     * 函数名称:GetSubElementByAttribute(string XmlPath, string FatherElenetName, string AttributeName, int AttributeIndex, int ArrayLength)
     * 功能说明:根据父节点属性值读取子节点值
     * 参  数: XmlPath:xml路径;FatherElenetName:父节点名;AttributeName:属性值;AttributeIndex:属性索引;ArrayLength:要返回的节点数组长度
     * 适应用Xml:
     *      ArrayList al = new ArrayList();
     *      al = EC.XmlObject.GetSubElementByAttribute(XmlPath, "page", "/index.aspx", 0, 3);
     *      for (int i = 0; i < al.Count; i++)
     *      {
     *        Response.Write(al[i].ToString());
     *        Response.Write("<br>");
     *      }
     ************************************************/
    /**//// <summary>
    /// 根据父节点属性读取字节点值
    /// </summary>
    /// <param name="XmlPath">xml路径</param>
    /// <param name="FatherElenetName">父节点名</param>
    /// <param name="AttributeName">属性值</param>
    /// <param name="AttributeIndex">属性索引</param>
    /// <param name="ArrayLength">要返回的节点数组长度</param>
    /// <returns></returns>
    public static System.Collections.ArrayList GetSubElementByAttribute(string XmlPath, string FatherElenetName, string AttributeName, int AttributeIndex, int ArrayLength)
    {
      System.Collections.ArrayList al = new System.Collections.ArrayList();
      XmlDocument docXml = new XmlDocument();
      docXml.Load(@XmlPath);
      XmlNodeList xn = docXml.DocumentElement.ChildNodes;
      //遍历第一层节点
      foreach (XmlElement element in xn)
      {
        //判断父节点是否为指定节点
        if (element.Name == FatherElenetName)
        {
          //判断父节点属性的索引是否大于指定索引
          if (element.Attributes.Count < AttributeIndex)
            return null;
          //判断父节点的属性值是否等于指定属性
          if (element.Attributes[AttributeIndex].Value == AttributeName)
          {
            XmlNodeList xx = element.ChildNodes;
            if (xx.Count > 0)
            {
              for (int i = 0; i < ArrayLength & i < xx.Count; i++)
              {
                al.Add(xx[i].InnerText);
              }
            }
          }
        }
      }
      return al;
    }
    #endregion
    #region 根据节点属性读取子节点值(较省资源模式)
    /**//**************************************************
     * 函数名称:GetSubElementByAttribute(string XmlPath, string FatherElement, string AttributeName, string AttributeValue, int ArrayLength)
     * 功能说明:根据父节点属性值读取子节点值
     * 参  数: XmlPath:xml路径;FatherElenetName:父节点名;AttributeName:属性名;AttributeValue:属性值;ArrayLength:要返回的节点数组长度
     * 适应用Xml:
     *      ArrayList al = new ArrayList();
     *      al = EC.XmlObject.GetSubElementByAttribute(XmlPath, "page", "@name", "/index.aspx", 3);
     *      for (int i = 0; i < al.Count; i++)
     *      {
     *        Response.Write(al[i].ToString());
     *        Response.Write("<br>");
     *      }
     ************************************************/
    /**//// <summary>
    /// 根据节点属性读取子节点值(较省资源模式)
    /// </summary>
    /// <param name="XmlPath">xml路径</param>
    /// <param name="FatherElement">父节点值</param>
    /// <param name="AttributeName">属性名称</param>
    /// <param name="AttributeValue">属性值</param>
    /// <param name="ArrayLength">返回的数组长度</param>
    /// <returns></returns>
    public static System.Collections.ArrayList GetSubElementByAttribute(string XmlPath, string FatherElement, string AttributeName, string AttributeValue, int ArrayLength)
    {
      System.Collections.ArrayList al = new System.Collections.ArrayList();
      XmlDocument docXml = new XmlDocument();
      docXml.Load(@XmlPath);
      XmlNodeList xn;
      xn = docXml.DocumentElement.SelectNodes("//" + FatherElement + "[" + @AttributeName + "='" + AttributeValue + "']");
      XmlNodeList xx = xn.Item(0).ChildNodes;
      for (int i = 0; i < ArrayLength & i < xx.Count; i++)
      {
        al.Add(xx.Item(i).InnerText);
      }
      return al;
    }
    #endregion
  }
}