通过JDOM向XML添加内容(add contant to XML through JDOM)

 我一直在开始研究JDOM。 到目前为止，我已经创建了一个名为file.xml的文件。 现在我想在XML文件中添加一些内容，但我有点不安全如何做到这一点？ 那可能是： - 名字 - 姓氏 - 年龄 
 
 希望可以有人帮帮我？ 来自朱莉的最好问候 
 
    ppackage examplePackage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class ReadXMLFile {

    public static void main(String[] args) {
        try {
            write();
            read();
        }
        catch (FileNotFoundException e){
            e.printStackTrace();
        }
        catch(IOException e) {
            e.printStackTrace();
        }
        catch(JDOMException e) {
            e.printStackTrace();
        }
    }

        public static void read() throws JDOMException, IOException {


            SAXBuilder reader = new SAXBuilder();
            Document document = reader.build(new File("file.xml"));
            XMLOutputter xout = new XMLOutputter(Format.getPrettyFormat());
            xout.output(document, System.out);
        }

        public static void write() throws FileNotFoundException, IOException {



Document document = new Document();
        Element root = new Element("document");
        root.setAttribute("file", "file.xml");
        root.addContent(new Element("style"));
        document.setRootElement(root);

        Element person = new Element("Person");             
        person.setAttribute("name", "Mads");
        }
}
 
 在控制台中打印： 
 
<?xml version="1.0" encoding="UTF-8"?>
<document file="file.xml">
  <style />
</document>
 
 在这种情况下，它应该打印出名为“Mads”的人吗？ 

I have been starting to look at JDOM. Until now I have created a file which has the name file.xml. Now I would like to add some content in the XML file, but I am a little bit insecure how to do that? That could fx be: - name - lastname - age
 
Hope someone can help me? Best Regards from Julie
 
    ppackage examplePackage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class ReadXMLFile {

    public static void main(String[] args) {
        try {
            write();
            read();
        }
        catch (FileNotFoundException e){
            e.printStackTrace();
        }
        catch(IOException e) {
            e.printStackTrace();
        }
        catch(JDOMException e) {
            e.printStackTrace();
        }
    }

        public static void read() throws JDOMException, IOException {


            SAXBuilder reader = new SAXBuilder();
            Document document = reader.build(new File("file.xml"));
            XMLOutputter xout = new XMLOutputter(Format.getPrettyFormat());
            xout.output(document, System.out);
        }

        public static void write() throws FileNotFoundException, IOException {



Document document = new Document();
        Element root = new Element("document");
        root.setAttribute("file", "file.xml");
        root.addContent(new Element("style"));
        document.setRootElement(root);

        Element person = new Element("Person");             
        person.setAttribute("name", "Mads");
        }
}
 
Print out in console:
 
<?xml version="1.0" encoding="UTF-8"?>
<document file="file.xml">
  <style />
</document>
 
In this case it should print out the person with the name "Mads" right?

原文：https://stackoverflow.com/questions/22606679