操作XML的类代码,CSharp代码库,德仔网

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【CSharp】操作XML的类
作者:tianzhang / 发布于2011/8/31/ 807
<div>using System;
using System.Xml;
using System.Configuration;
using System.Data;
using System.Collections;
using System.IO;</div>
<div>namespace YZControl
{
 public class NewXmlControl : Object
 {
 protected string strXmlFile;
 protected XmlDocument objXmlDoc = new XmlDocument();</div>
<div>
 public NewXmlControl(string XmlFile, Boolean bOverWrite, string sRoot)
 {
 try
 {
 //如果覆盖模式，则强行创建一个xml文档
 if (bOverWrite)
 {
 objXmlDoc.AppendChild(objXmlDoc.CreateXmlDeclaration("1.0", "utf-8", null));//设置xml的版本，格式信息
 objXmlDoc.AppendChild(objXmlDoc.CreateElement("", sRoot, ""));//创建根元素
 objXmlDoc.Save(XmlFile);//保存
 }
 else //否则，检查文件是否存在，不存在则创建
 {
 if (!(File.Exists(XmlFile)))
 {
 objXmlDoc.AppendChild(objXmlDoc.CreateXmlDeclaration("1.0", "utf-8", null));
 objXmlDoc.AppendChild(objXmlDoc.CreateElement("", sRoot, ""));
 objXmlDoc.Save(XmlFile);
 }
 }
 objXmlDoc.Load(XmlFile);
 }
 catch (System.Exception ex)
 {
 throw ex;
 }
 strXmlFile = XmlFile;
 }
<div></div>
<div> /// <summary>
 /// 根据xPath值，返回xPath下的所有下级子结节到一个DataView
 /// </summary>
 /// <param name="XmlPathNode">xPath值</param>
 /// <returns>有数据则返回DataView，否则返回null</returns>
 public DataView GetData(string XmlPathNode)
 {
 //查找数据。返回一个DataView
 DataSet ds = new DataSet();
 try
 {
 StringReader read = new StringReader(objXmlDoc.SelectSingleNode(XmlPathNode).OuterXml);
 ds.ReadXml(read);
 return ds.Tables[0].DefaultView;
 }
 catch
 {
 //throw;
 return null;
 }
 }
<div> /// <summary>
 /// 更新节点内容
 /// </summary>
 /// <param name="xmlPathNode"></param>
 /// <param name="content"></param>
 public void UpdateNode(string xmlPathNode, string content)
 {
 objXmlDoc.SelectSingleNode(xmlPathNode).InnerText = content;
 }
<div> /// <summary>
 /// 更新节点的某个属性
 /// </summary>
 /// <param name="xmlPathNode">要操作的节点</param>
 /// <param name="AttribName">属性名</param>
 /// <param name="AttribValue">属性值</param>
 public void UpdateNode(string xmlPathNode, string AttribName, string AttribValue)
 {</div>
<div> ((XmlElement)(objXmlDoc.SelectSingleNode(xmlPathNode))).SetAttribute(AttribName, AttribValue);
 }
<div>
 /// <summary>
 /// 修改节点(同步更新内容和属性)
 /// </summary>
 /// <param name="xmlPathNode">要操作节点的xpath语句</param>
 /// <param name="arrAttribName">属性名称字符串数组</param>
 /// <param name="arrAttribContent">属性内容字符串数组</param>
 /// <param name="content">节点内容</param>
 public void UpdateNode(string xmlPathNode, string[] arrAttribName, string[] arrAttribContent, string content)
 {</div>
<div> XmlNode xn = objXmlDoc.SelectSingleNode(xmlPathNode);
 if (xn != null)
 {
 xn.InnerText = content;
 xn.Attributes.RemoveAll();
 for (int i = 0; i <= arrAttribName.GetUpperBound(0); i++)
 {
 ((XmlElement)(xn)).SetAttribute(arrAttribName[i], arrAttribContent[i]);
 }
<div> }
 }
<div> /// <summary>
 /// 移除选定节点集的所有属性
 /// </summary>
 /// <param name="xmlPathNode"></param>
 public void RemoveAllAttribute(string xmlPathNode)
 {
 XmlNodeList xnl = objXmlDoc.SelectNodes(xmlPathNode);
 foreach (XmlNode xn in xnl)
 {
 xn.Attributes.RemoveAll();
 }
 }
<div>
 public void DeleteNode(string Node)
 {
 //刪除一个节点。
 try
 {
 string mainNode = Node.Substring(0, Node.LastIndexOf("/"));
 objXmlDoc.SelectSingleNode(mainNode).RemoveChild(objXmlDoc.SelectSingleNode(Node));
 }
 catch
 {
 //throw; 
 return;
 }
 }
<div>
 public void InsertNodeWithChild(string mainNode, string ChildNode, string Element, string Content)
 {
 //插入一节点和此节点的一子节点。
 XmlNode objRootNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objChildNode = objXmlDoc.CreateElement(ChildNode);
 objRootNode.AppendChild(objChildNode);//插入节点
 XmlElement objElement = objXmlDoc.CreateElement(Element);
 objElement.InnerText = Content;
 objChildNode.AppendChild(objElement);//插入子节点
 }
<div> /// <summary>
 /// 插入一个节点，带一个Attribute和innerText
 /// </summary>
 /// <param name="mainNode"></param>
 /// <param name="Element">节点名称</param>
 /// <param name="Attrib">Attribute名称</param>
 /// <param name="AttribContent">Attribute值</param>
 /// <param name="Content">innerText值</param>
 public void InsertNode(string mainNode, string Element, string Attrib, string AttribContent, string Content)
 {
 XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objElement = objXmlDoc.CreateElement(Element);
 objElement.SetAttribute(Attrib, AttribContent);
 objElement.InnerText = Content;
 objNode.AppendChild(objElement);
 }
<div> /// <summary>
 /// 插入一个节点，带一个Attribute
 /// </summary>
 /// <param name="mainNode"></param>
 /// <param name="Element">节点名称</param>
 /// <param name="Attrib">Attribute名称</param>
 /// <param name="AttribContent">Attribute值</param> 
 public void InsertNode(string mainNode, string Element, string Attrib, string AttribContent)
 {
 XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objElement = objXmlDoc.CreateElement(Element);
 objElement.SetAttribute(Attrib, AttribContent);
 objNode.AppendChild(objElement);
 }
<div>
 /// <summary>
 /// 插入一个节点
 /// </summary>
 /// <param name="mainNode"></param>
 /// <param name="Element">节点名称</param> 
 public void InsertNode(string mainNode, string Element)
 {
 XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objElement = objXmlDoc.CreateElement(Element);
 objNode.AppendChild(objElement);
 }
<div>
 //<summary>
 //插入一个节点，带多个属性和一个inner text
 //</summary>
 public void InsertNode(string mainNode, string elementName, string[] arrAttributeName, string[] arrAttributeContent, string elementContent)
 {
 try
 {
 XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objElement = objXmlDoc.CreateElement(elementName);
 for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
 {
 objElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
 }
 objElement.InnerText = elementContent;
 objNode.AppendChild(objElement);
 }
 catch
 {
 throw;
 //string t = mainNode;
 //;
 }
 }
<div> ///<summary>
 ///插入一个节点，带多个属性
 ///</summary>
 public void InsertNode(string mainNode, string elementName, string[] arrAttributeName, string[] arrAttributeContent)
 {
 try
 {
 XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
 XmlElement objElement = objXmlDoc.CreateElement(elementName);
 for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
 {
 objElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
 }
 //objElement.InnerText = elementContent;
 objNode.AppendChild(objElement);
 }
 catch
 {
 throw;
 //string t = mainNode;
 //;
 }
 }
<div> /// <summary>
 /// 插入子节点(带多个属性)
 /// </summary>
 /// <param name="parentNode">要插入的父节点</param>
 /// <param name="elementName">插入的节点名称</param>
 /// <param name="arrAttributeName">属性名称[数组]</param>
 /// <param name="arrAttributeContent">属性内容[数组]</param>
 /// <param name="elementContent">节点内容</param>
 public void AddChildNode(string parentNodePath, string elementName, string[] arrAttributeName, string[] arrAttributeContent, string elementContent)
 {
 try
 {
 XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
 XmlElement objChildElement = objXmlDoc.CreateElement(elementName);
 for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
 {
 objChildElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
 }
 objChildElement.InnerText = elementContent;
 parentNode.AppendChild(objChildElement);
 }
 catch
 {
 return;
 }
<div> }
<div> /// <summary>
 /// 插入子节点(将内容以CData形式写入)
 /// </summary>
 /// <param name="parentNode">要插入的父节点</param>
 /// <param name="elementName">插入的节点名称</param>
 /// <param name="elementContent">节点内容</param>
 public void AddChildNodeCData(string parentNodePath, string elementName, string elementContent)
 {
 try
 {
 XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
 XmlElement objChildElement = objXmlDoc.CreateElement(elementName);</div>
<div> //写入cData数据
 XmlCDataSection xcds = objXmlDoc.CreateCDataSection(elementContent);</div>
<div> objChildElement.AppendChild(xcds);
 parentNode.AppendChild(objChildElement);
 }
 catch
 {
 return;
 }
<div> }
<div>
 /// <summary>
 /// 插入子节点(仅内容，不带属性)
 /// </summary>
 /// <param name="parentNode">要插入的父节点</param>
 /// <param name="elementName">插入的节点名称</param>
 /// <param name="elementContent">节点内容</param>
 public void AddChildNode(string parentNodePath, string elementName, string elementContent)
 {
 try
 {
 XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
 XmlElement objChildElement = objXmlDoc.CreateElement(elementName);</div>
<div> objChildElement.InnerText = elementContent;
 parentNode.AppendChild(objChildElement);
 }
 catch
 {
 return;
 }
<div> }
<div> /// <summary>
 /// 根据xpath值查找节点
 /// </summary>
 /// <param name="NodePath">要查找节点的xpath值</param>
 /// <returns>找到返回true,否则返回true</returns>
 public bool FindNode(string NodePath)
 {
 try
 {
 if (objXmlDoc.SelectSingleNode(NodePath) != null)
 {
 return true;
 }
 else
 {
 return false;
 }
 }
 catch
 {
 return false;
 }
 }
<div>
 /// <summary>
 ///保存文档
 /// </summary>
 public void Save()
 {
 //保存文档。
 try
 {
 objXmlDoc.Save(strXmlFile);
 }
 catch (System.Exception ex)
 {
 throw ex;
 }
 objXmlDoc = null;
 }
<div></div>
<div>
 }
}
<div>调用方法
NewXmlControl xc = new NewXmlControl(Server.MapPath("~/rss.xml"), true, "rss");
 xc.UpdateNode("//rss", "version", "2.0");
 xc.InsertNode("//rss", "channel");
 xc.AddChildNode("/rss/channel", "title", Shop.DAL.sp_netconfig.GetConfigObj().webname);
 // xc.AddChildNode("/rss/channel", "slogan", Shop.DAL.sp_netconfig.GetConfigObj().webname);
 xc.AddChildNode("/rss/channel", "link", Shop.DAL.sp_netconfig.GetConfigObj().weburl);
 xc.AddChildNode("/rss/channel", "language", "zh-cn");
 xc.AddChildNode("/rss/channel", "description", Shop.DAL.sp_netconfig.GetConfigObj().metatwo);
 // xc.AddChildNode("/rss/channel", "copyright", Shop.DAL.sp_netconfig.GetConfigObj().copyright);
 xc.AddChildNode("/rss/channel", "author", Shop.DAL.sp_netconfig.GetConfigObj().webname);
 xc.AddChildNode("/rss/channel", "generator", "Rss Generator By Taoxian");
 DataSet ds = DbHelperSQL.Query("select top 20 pro_ID,pro_Name,pro_CreateTime,pro_Content from sp_product where pro_SaleType=1 and pro_Stock>0 and pro_Audit=1 order by pro_ID desc");
 for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
 {
 int j = i + 1;
 xc.InsertNode("/rss/channel", "item");
 xc.AddChildNode("/rss/channel/item[" + j.ToString() + "]", "title", ds.Tables[0].Rows[i]["pro_Name"].ToString());
 xc.AddChildNode("/rss/channel/item[" + j.ToString() + "]", "link", Shop.DAL.sp_netconfig.GetConfigObj().weburl + "/Product/ProductInfo_" + ds.Tables[0].Rows[i]["pro_ID"].ToString() + ".html");
 xc.AddChildNode("/rss/channel/item[" + j.ToString() + "]", "pubDate", Convert.ToDateTime(ds.Tables[0].Rows[i]["pro_CreateTime"].ToString()).GetDateTimeFormats('r')[0].ToString()); 
 xc.AddChildNode("/rss/channel/item[" + j.ToString() + "]", "author", Shop.DAL.sp_netconfig.GetConfigObj().webname);
 xc.AddChildNodeCData("/rss/channel/item[" + j.ToString() + "]", "description", ds.Tables[0].Rows[i]["pro_Content"].ToString());
 }
 ds.Dispose();
 xc.Save();
 YZControl.staticFunction.FinalMessage("生成RSS成功！", "html.aspx", 0, 2); 
</div>
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