C# 如何从xml文件中读取单个节点值
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How to read single node value from xml file
提问by deepika
Hi i am trying to get value from xml but it shows node null.
嗨，我正在尝试从 xml 获取值，但它显示节点为空。
Here is my xml file.
这是我的 xml 文件。
<?xml version="1.0" encoding="utf-8"?>
<result xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://www.cfhdocmail.com/TestAPI2/Result.xsd https://www.cfhdocmail.com/TestAPI2/Result.xsd" xmlns="https://www.cfhdocmail.com/TestAPI2/Result.xsd">
<data>
<key>MailingGUID</key>
<value>0aa2b2e3-7afa-4002-ab2f-9eb4cbe33ae7</value>
</data>
<data>
<key>OrderRef</key>
<value>52186</value>
</data>
</result>
I want to get "MailingGUID"value.
我想获得“MailingGUID”值。
Here is the code that i have tried:
这是我尝试过的代码：
private void readXML()
{
XmlDocument xml = new XmlDocument();
// You'll need to put the correct path to your xml file here
xml.Load(Server.MapPath("~/XmlFile11.xml"));
// Select a specific node
XmlNode node = xml.SelectSingleNode("result/data/value");
// Get its value
string name = node.InnerText;
}
Please tell me how i can get MailingGUIDvalue.
请告诉我如何获得MailingGUID值。
Thanks
谢谢
回答by Marcus
UPDATE:I think there might be something wrong with your schemas, I removed references to them and your code worked fine. I tried this:
更新：我认为您的架构可能有问题，我删除了对它们的引用并且您的代码运行良好。我试过这个：
const string str = "<?xml version=\"1.0\" encoding=\"utf-8\"?><result><data><key>MailingGUID</key><value>0aa2b2e3-7afa-4002-ab2f-9eb4cbe33ae7</value></data><data><key>OrderRef</key><value>52186</value></data></result>";
var xml = new XmlDocument();
xml.LoadXml(str);
xml.DocumentElement.SelectSingleNode("/result/data/value").InnerText
回答by user3387482
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
//Parsing of xml is done here
Document doc = builder.parse(new File("C:\Users\User_Name\Documents\My Received Files\PDSL_ABM.xml"));
//Here we get the root element of XML and print out
doc.getDocumentElement().normalize();
System.out.println ("Root element of the doc is " + doc.getDocumentElement().getNodeName());
NodeList list = doc.getElementsByTagName("MailingGUID");
int totalMailingGUID =list.getLength();
System.out.println("Total no of MailingGUID : " + totalSupplierPartID);
//Traversing all the elements from the list and printing out its data
for (int i = 0; i < list.getLength(); i++) {
//Getting one node from the list.
Node childNode = list.item(i);
System.out.println("MailingGUID : " + childNode.getTextContent());
}
