xml 操作2
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
//两个构造函数中，一个是XML文件路径，一个文件路径加上节点路径，在重载的函数中有的需要设置节点路径
//方法为：xmlManager.NodePath = "\\子节点\子节点……"
//所有异常全部抛出，需要在程序捕捉
namespace Aidy.XmlManager
{
public class XmlManager
{
#region 变量的定义
private XmlDocument _document = new XmlDocument();
private string _xmlPath;//文件路径
private string _nodePath;//节点路径
/// <summary>
/// 操作的XML文档路径＝文件路径＋文件全名
/// </summary>
public string XmlPath
{
get { return _xmlPath; }
set { _xmlPath = value; }
}
/// <summary>
/// XML文档中的节点路径"//根节点/子节点/子节点……"
/// </summary>
public string NodePath
{
get { return _nodePath; }
set { _nodePath = value; }
}
#endregion
#region 构造函数
/// <summary>
/// 构造函数
/// </summary>
/// <param name="xmlPath">XML文档路径+xml文件全名</param>
public XmlManager(string xmlPath,string nodePath)
{
this._xmlPath = xmlPath;
this._nodePath = nodePath;
this._document.Load(xmlPath);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="xmlName">默认程序运行路径和XML文件名</param>
public XmlManager(string xmlPath)
{
this._xmlPath = xmlPath;
this._document.Load(xmlPath);
}
#endregion
#region 各种操作方法
/// <summary>
/// 读出指定路径XML文档的全部内容
/// </summary>
/// <returns>XML文档的全部内容</returns>
public string Out()
{
return this._document.OuterXml;
}
#region 获取节点
/// <summary>
/// 获取XML中节点的内容
/// </summary>
/// <param name="nodeName">节点名称</param>
/// <returns>List(string)集合</returns>
public List<string> GetNode(string nodeName)
{
try
{
List<string> list = new List<string>();
XmlNodeList nodeList = this._document.GetElementsByTagName(nodeName);
//string[] li = new string[nodeList.Count];
foreach (XmlNode node in nodeList)
{
list.Add(node.InnerText);
}
return list;
}
catch (Exception e)
{
throw(new Exception(e.Message));
}
}
/// <summary>
/// 获取XML中节点的内容
/// </summary>
/// <param name="i">第i段数据</param>
/// <param name="j">第j个属性</param>
/// <param name="path">用户指定节点路径</param>
/// <returns></returns>
public string GetNode(int i,int j,string path)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(path);
return nodeList.Item(i - 1).ChildNodes.Item(j - 1).InnerText;
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 获取XML中节点的内容
/// </summary>
/// <param name="i">第i段数据</param>
/// <param name="j">第j个属性</param>
/// <returns></returns>
public string GetNode(int i, int j)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(_nodePath);
return nodeList.Item(i - 1).ChildNodes.Item(j - 1).InnerText;
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 获取XML中节点的内容
/// </summary>
/// <param name="i">第i段数据</param>
/// <param name="nodeName">节点名</param>
/// <param name="nodePath">用户指定路径</param>
/// <returns></returns>
public string GetNode(int i,string nodePath, string nodeName)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(nodePath);
for (int j = 0; j <= nodeList.Item(i - 1).ChildNodes.Count; j++)
{
if (nodeList.Item(i - 1).ChildNodes.Item(j).Name == nodeName)
return nodeList.Item(i - 1).ChildNodes.Item(j).InnerText;
}
return "nofind";
}
catch(Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 获取XML中节点的内容
/// </summary>
/// <param name="i">第i段数据</param>
/// <param name="nodeName">节点名</param>
/// <returns></returns>
public string GetNode(int i,string nodeName)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(_nodePath);
for (int j = 0; j <= nodeList.Item(i - 1).ChildNodes.Count; j++)
{
if (nodeList.Item(i - 1).ChildNodes.Item(j).Name == nodeName)
return nodeList.Item(i - 1).ChildNodes.Item(j).InnerText;
}
return "nofind";
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
#endregion
#region 获取节点数
/// <summary>
/// 返回符合指定名称的节点数
/// </summary>
/// <param name="nodeName">节点名</param>
/// <returns>节点数</returns>
public int Count(string nodeName)
{
try
{
XmlNodeList nodeList = this._document.GetElementsByTagName(nodeName);
return nodeList.Count;
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 使用设置的节点路径返回符合指定名称的节点数
/// </summary>
/// <returns>节点数</returns>
public int Count()
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(_nodePath);
return nodeList.Count;
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 返回指符合指定名称的节点集中第i个集合的子节点数
/// </summary>
/// <param name="nodePath"></param>
/// <returns></returns>
public int CountChilds(int i,string nodeName)
{
try
{
XmlNodeList nodeList = this._document.GetElementsByTagName(nodeName);
if (nodeList.Count > 0)
{
return nodeList.Item(i-1).ChildNodes.Count;
}
else
{
return 0;
}
}
catch(Exception e)
{
throw(new Exception(e.Message));
}
}
/// <summary>
/// 返回指符合指定名称的节点的子节点数
/// </summary>
/// <param name="nodePath"></param>
/// <returns></returns>
public int CountChilds(string nodeName)
{
try
{
int counts = 0;
XmlNodeList nodeList = this._document.GetElementsByTagName(nodeName);
if (nodeList.Count > 0)
{
for (int i = 0; i < nodeList.Count; i++)
{
counts += nodeList.Item(i).ChildNodes.Count;
}
return counts;
}
else
{
return 0;
}
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
#endregion
#region 修改节点值
/// <summary>
/// 修改指定节点的值
/// </summary>
/// <param name="nodeName">节点名称</param>
/// <param name="newValue">新值</param>
/// <returns>返回更改的节点数</returns>
public int SetNode(string nodeName,string newValue)
{
try
{
XmlNodeList nodeList = this._document.GetElementsByTagName(nodeName);
foreach(XmlNode node in nodeList)
{
node.InnerText = newValue;
}
this._document.Save(_xmlPath);
return nodeList.Count;
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 修改指定节点的值
/// </summary>
/// <param name="i">第i段数据</param>
/// <param name="nodePath">节点路径</param>
/// <param name="nodeName">节点名称</param>
/// <param name="newValue">新值</param>
public void SetNode(int i,string nodePath,string nodeName,string newValue)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(nodePath);
if (nodeList.Count > 0 && nodeList.Count <= i)
{
for (int j = 0; j < nodeList.Item(i - 1).ChildNodes.Count; j++)
{
if (nodeList.Item(i - 1).ChildNodes.Item(j).Name == nodeName)
{
nodeList.Item(i - 1).ChildNodes.Item(j).InnerText = newValue;
this._document.Save(_xmlPath);
}
}
}
else
{
throw (new Exception("并无此子集"));
}
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
/// <summary>
/// 修改指定节点的值,使用设置的节点路径
/// <param name="i">第i段数据</param>
/// <param name="nodeName">节点名称</param>
/// <param name="newValue">新值</param>
public void SetNode(int i, string nodeName, string newValue)
{
try
{
XmlNodeList nodeList = this._document.SelectNodes(_nodePath);
if (nodeList.Count > 0 && nodeList.Count <= i)
{
for (int j = 0; j < nodeList.Item(i - 1).ChildNodes.Count; j++)
{
if (nodeList.Item(i - 1).ChildNodes.Item(j).Name == nodeName)
{
nodeList.Item(i - 1).ChildNodes.Item(j).InnerText = newValue;
this._document.Save(_xmlPath);
}
}
}
}
catch (Exception e)
{
throw (new Exception(e.Message));
}
}
#endregion
#region 插入节点
/// <summary>
/// 为指定的节点(集插)入一个子节点
/// </summary>
/// <param name="parentName">父节点</param>
/// <param name="nodeName">子节点名</param>
/// <param name="nodeVale">子节点值</param>
public void InsetNode(string parentName,string nodeName,string nodeVale)
{
XmlNodeList nodeList = this._document.GetElementsByTagName(parentName);
for (int i = 0; i < nodeList.Count; i++)
{
XmlElement newElement = _document.CreateElement(nodeName);
//newElement.SetAttribute(nodeName,nodeVale);//会插入如<id id = "0012"/>的节点
nodeList.Item(i).AppendChild(newElement);//<id>002</id>
newElement.InnerText = nodeVale;
}
this._document.Save(this._xmlPath);
}
/// <summary>
/// 为指定的节点(集)插入一个子节点
/// </summary>
/// <param name="parentName">父节点</param>
/// <param name="nodeName">子节点名</param>
/// <param name="nodeVale">子节点值</param>
public void InsetNode(int i,string parentName, string nodeName, string nodeValue)
{
try
{
XmlNodeList nodeList = this._document.GetElementsByTagName(parentName);
XmlElement newElement = _document.CreateElement(nodeName);
//newElement.SetAttribute(nodeName, nodeValue);
if (nodeList.Count > 0 && nodeList.Count <= i)
{
nodeList.Item(i - 1).AppendChild(newElement);
newElement.InnerText = nodeValue;
this._document.Save(this._xmlPath);
}
else
{
throw(new Exception("无此节点"));
}
}
catch(Exception e)
{
throw(new Exception(e.Message));
}
}
/// <summary>
/// 插入根节点（第二级根节点）
/// </summary>
/// <param name="rootName">节点名</param>
/// <param name="nodeName">子节点名</param>
/// <param name="nodeValue">子节点值</param>
public void InsertRootNode(string rootName,string[] nodeName,string[] nodeValue)
{
XmlElement root = _document.DocumentElement;
XmlElement newRoot = _document.CreateElement(rootName);
root.AppendChild(newRoot);
for (int i = 0; i < nodeName.Length; i++)
{
XmlElement newChild = _document.CreateElement(nodeName[i]);
newRoot.AppendChild(newChild);
newChild.InnerText = nodeValue[i];
}
this._document.Save(this._xmlPath);
}
//public string geT(string name)
//{
// XmlNodeList n = _document.GetElementsByTagName(name);
// XmlElement nn = _document.
// return nn[0].Attributes.ToString();
//}
#endregion
public void DeleteNote(string parentName, string noteName)
{
XmlNodeList nodeList = _document.GetElementsByTagName(parentName);
//for (int i = 0; i < nodeList.Count; i++)
// if (nodeList.Item(i).ParentNode.Name == parentName)
// nodeList.Item(i).ParentNode.RemoveChild(nodeList.Item(i));
//this._document.Save(this._xmlPath);
//for (int i = 0; i < nodeList.Count; i++)
// for (int j = 0; j < nodeList.Item(i).ChildNodes.Count; j++)
// if (nodeList.Item(i).ChildNodes.Item(j).Name == noteName)
// nodeList.Item(i).RemoveChild(nodeList.Item(i).ChildNodes.Item(j));
//this._document.Save(this._xmlPath);
foreach (XmlNode node in nodeList)
{
foreach (XmlNode nodechild in node.ChildNodes)
if (nodechild.Name == noteName)
{
node.RemoveChild(nodechild);
}
}
this._document.Save(this._xmlPath);
}
public void DeleteNote(string parmentName)
{
XmlNodeList nodeList = this._document.GetElementsByTagName(parmentName);
foreach (XmlNode node in nodeList)
node.RemoveAll();
this._document.Save(_xmlPath);
}
public void DeleteAll()
{
XmlElement element = this._document.DocumentElement;
element.RemoveAll();
this._document.Save(this._xmlPath);
}
public Boolean Save(string xmlName, string rootElement)
{
try
{
string savePath = System.IO.Directory.GetCurrentDirectory()+"\\"+xmlName;
XmlDocument document = new XmlDocument();
XmlElement element = document.CreateElement(rootElement);
document.AppendChild(element);
document.Save(savePath);
return true;
}
catch (XmlException xe)
{
throw (new Exception(xe.Message));
}
}
#endregion
}
}
