ASP.NET解析xml返回某节点属性的内容

test.xml
<?xml version="1.0" encoding="utf-8" ?>
<root>
<R SecuCode="601600" Glossary="学IT网测试获取XML结果显示正常，。。。。。。。哈哈" />
<R SecuCode="600056" Glossary="测试第二个，。。。。。。。哈哈" />
</root>
下面xml解析操作类（扩展的)：

/// <summary>
///
/// author:dodo
/// 网址：www.xueit.com
///
/// 读取XML类
/// </summary>
/// <typeparam name="T"></typeparam>
public class xmlHepler<T>
{
Hashtable table = new Hashtable();
T FileName;
T Root; //根节点
T RootAttName; //节点属性名称
T RootAttValue; //根节点属性值
T Field; //Xml字段
/// <summary>
/// XML文件路径
/// </summary>
/// <param name="val"></param>
public xmlHepler(T val)
{
FileName = val;
this.LoadXml(val.ToString());
}

/// <summary>
/// XML文件路径
/// </summary>
/// <param name="file"></param>
private void LoadXml(string file)
{
XmlDocument xdoc = new XmlDocument();
xdoc.Load(file);
table.Add("xml", xdoc);
}

/// <summary>
/// 返回XML to DataTable
/// </summary>
/// <returns></returns>
public DataTable GetXmlToDataTable()
{
string[] SplitField = Field.ToString().Split(',');
//构造DataTable
DataTable dt = new DataTable();
DataColumn dc = null;
for (int i = 0; i < SplitField.Length; i )
{
dc = new DataColumn(SplitField[i]);
dt.Columns.Add(dc);
}
XmlDocument xdoc = (XmlDocument)table["xml"];
XmlNodeList xTable = xdoc.DocumentElement.SelectNodes(Root.ToString());

foreach (XmlNode xnode in xTable)
{
if (xnode.Attributes[RootAttName.ToString()].InnerText == RootAttValue.ToString()) //某一节点
{
//该节点下所有子节点
XmlNodeList xnlist = xnode.ChildNodes;
//子节点所有数据
for (int i = 0; i < xnlist.Count; i ) //for (int i = 0; i < xnode.ChildNodes.Count; i ) 这句是所有xml子节点数据
{
DataRow dr = dt.NewRow();
//绑定所需字段
for (int j = 0; j < SplitField.Length; j )
{
dr[SplitField[j]] = xnode.ChildNodes[i].Attributes[SplitField[j]].Value;
}
dt.Rows.Add(dr);
}
}
}
return dt;
}

/// <summary>
/// 返回xml 节点内容
/// </summary>
/// <returns></returns>
public string GetXmlToString()
{
string strText = string.Empty;
XmlDocument xdoc = (XmlDocument)table["xml"];
XmlNodeList xnList = xdoc.DocumentElement.SelectNodes(Root.ToString());

foreach (XmlNode xnode in xnList)
{
if (xnode.Attributes[RootAttName.ToString()].InnerText == RootAttValue.ToString())
{
strText = xnode.Attributes[Field.ToString()].InnerText;
break;
}
}

return strText;
}

#region 设置值
/// <summary>
/// 根节点
/// </summary>
public T xmlRoot
{
get { return Root; }
set { Root = value; }
}
/// <summary>
/// 节点属性字段名称
/// </summary>
public T xmlRootAttName
{
get { return RootAttName; }
set { RootAttName = value; }
}
/// <summary>
/// 节点属性字段值
/// </summary>
public T xmlRootAttValue
{
get { return RootAttValue; }
set { RootAttValue = value; }
}

/// <summary>
/// 子节点属性字段
/// </summary>
public T xmlSplitField
{
set { Field = value; }
}
#endregion
}
好，这些都准备好了，下面获取test.xml文件中SecuCode="601600"的Glossary值，新建一个文件test.aspx，在Page_Load()加入如下代码：
protected void Page_Load(object sender, EventArgs e)
{
string str = "";

xmlHepler<string> xml = new xmlHepler<string>(Server.MapPath("App_Data/test.xml"));
xml.xmlRoot = "R";
xml.xmlRootAttName = "SecuCode";
xml.xmlRootAttValue = "601600";
xml.xmlSplitField = "Glossary"; //要返回内容的字段
str = xml.GetXmlToString();

Response.Write(str);
}