如何使用XPath从根标记中获取所有不同的元素标记
本文关键字:元素 XPath 何使用 获取 | 更新日期: 2023-09-27 18:29:27
我有一个下面的xml文件
<root>
<element1>
<header>header1</header>
<tag1>tag1</tag1>
<response>
<status>success</status>
<Data>
<id>d1</id>
<test>2</test>
</Data>
<Beta>
<betaid>sdsd</betaid>
<code>123</code>
<code>ddd</code>
</Beta>
</response>
</element1>
</root>
我的问题:如何获得"响应"标签下的第一个子元素?即staus、data和beta。在C#中使用XPath。谢谢
我的.net代码在这里,但它不起作用。
XPathDocument doc= new XPathDocument(XmlReaderdata);
XPathNavigator mes, Nav = doc.CreateNavigator();
foreach(XPathNavigator node in (XPathNodeIterator)Nav.Evaluate("//response/*)
{
node.Name;
}
这样的XPath查询应该可以工作:
//response/*
例如:
var xml = @"<root> ... </root>";
using (StringReader stream = new StringReader(xml))
{
XPathDocument doc= new XPathDocument(stream);
XPathNavigator nav = doc.CreateNavigator();
XPathNodeIterator itor = (XPathNodeIterator)nav.Evaluate("//response/*");
foreach(XPathNavigator node in itor)
{
Console.WriteLine(node.Name);
}
}
产生输出:
status
Data
Beta
您可以使用//response
:
DTO:
public class Response
{
public Response()
{
Data = new List<KeyValuePair<string, string>>();
Beta = new List<KeyValuePair<string, string>>();
}
public string Status { get; set; }
public List<KeyValuePair<string, string>> Data { get; set; }
public List<KeyValuePair<string, string>> Beta { get; set; }
}
代码:
var document = XDocument.Parse(data);
var element = document.XPathSelectElement("//response");
var response = new Response();
response.Status = element.Element("status").Value;
foreach(var dataElement in element.Element("Data").Elements())
{
response.Data.Add(new KeyValuePair<string, string>(dataElement.Name.LocalName, dataElement.Value));
}
foreach(var betaElement in element.Element("Beta").Elements())
{
response.Beta.Add(new KeyValuePair<string, string>(betaElement.Name.LocalName, betaElement.Value));
}
编辑:部分加载
public Response ParseResponse(XPathDocument document)
{
var navigator = document.CreateNavigator();
var iterator = navigator.Select("//response");
iterator.MoveNext();
var responseDoc = XDocument.Parse(iterator.Current.OuterXml);
var element = responseDoc.Element("response");
var response = new Response();
response.Status = element.Element("status").Value;
foreach(var dataElement in element.Element("Data").Elements())
{
response.Data.Add(new KeyValuePair<string, string>(dataElement.Name.LocalName, dataElement.Value));
}
foreach(var betaElement in element.Element("Beta").Elements())
{
response.Beta.Add(new KeyValuePair<string, string>(betaElement.Name.LocalName, betaElement.Value));
}
return response;
}
Response response;
using(var reader = XmlReader.Create(stream))
{
var doc = new XPathDocument(reader);
response = ParseResponse(doc);
}
您是否正在尝试获取子节点的名称?我希望这能帮助
string xmlstring = "<root><element><response><status>Success</status><Data><id>1</id></Data></response></element></root>";
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlstring);
XmlNode node = doc.SelectSingleNode("/root/element/response");
XmlNodeList children = node.ChildNodes;
foreach(XmlNode i in children )
Console.WriteLine(i.Name);