Question

java xml节点添加修改属性

<first>
<second>
<here id="a" name="b">
<."还有一些子节点".>
</here>
<here id="c" name="d">
<...>
</here>
</second>
</first>
就是让<here>里面加个东西变成<here id="a" name="b" color="q">...
用的是
import org.xml.sax.SAXException;
dom4j

Answer 1

SAXReader reader = new SAXReader();
Document doc = reader.read(new FileInputStream("d.xml"));
Element root = doc.getRootElement();
List<Element> list = root.selectNodes("//here");
for (Element e : list) {
System.out.println(e);
e.addAttribute("color", "q");
}
// 保存
XMLWriter writer = new XMLWriter(new FileWriter("output.xml"));
writer.write(doc);
writer.close();