[英]How to get the value of subelement from XML?
我想从下面的 JAVA 中的 XML 中获取中间名的值。
<employee>
<emp1 name='firstName'>FNAme</emp1>
<emp1 name='middleName'>MNAme</emp1>
<emp1 name='LastName'>LNAme</emp1>
</employee>
这项工作对我来说很好:java 代码
import java.io.File;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
public class main
{
public static void main(String[] args) {
try {
File file = new File(".idea/company.xml");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.parse(file);
document.getDocumentElement().normalize();
System.out.println("Root Element :" + document.getDocumentElement().getNodeName());
NodeList nList = document.getElementsByTagName("employee");
System.out.println("----------------------------");
for (int temp = 0; temp < nList.getLength(); temp++) {
Node nNode = nList.item(temp);
System.out.println("\nCurrent Element :" + nNode.getNodeName());
if (nNode.getNodeType() == Node.ELEMENT_NODE) {
Element eElement = (Element) nNode;
System.out.println("First Name : " + eElement.getElementsByTagName("firstName").item(0).getTextContent());
System.out.println("Middle Name : " + eElement.getElementsByTagName("middleName").item(0).getTextContent());
System.out.println("Last Name : " + eElement.getElementsByTagName("lastName").item(0).getTextContent());
}
}
}
catch(IOException | ParserConfigurationException | SAXException e) {
System.out.println(e);
}
xml 看起来像这样:
<?xml version="1.0"?>
<company>
<employee>
<firstName>FNAme</firstName>
<middleName>MNAme</middleName>
<lastName>LNAme</lastName>
</employee>
</company>
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