Java操作xml(使用javax.xml)
import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBException;import javax.xml.bind.Marshaller;import javax.xml.bind.Unmarshaller;import javax.xml.bind.annotation.XmlRootElement;import javax.xml.parsers.ParserConfigurationException;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class test extends DefaultHandler {public static void main(String[] args) throws ParserConfigurationException,SAXException, IOException, JAXBException {OutputStream os = new FileOutputStream("c:\\1.xml");JAXBContext jc0 = JAXBContext.newInstance(A.class);Marshaller m = jc0.createMarshaller();A a = new A();a.setId("id for a");B b = new B();b.setNo(60);a.setB(b);m.marshal(a, os);InputStream is = new FileInputStream("c:\\1.xml");JAXBContext jc = JAXBContext.newInstance(A.class);Unmarshaller u = jc.createUnmarshaller();A o = (A) u.unmarshal(is);System.out.println(o.getB().getNo());}}@XmlRootElement(name = "A")class A {String id;public String getId() {return id;}public void setId(String id) {this.id = id;}public B getB() {return b;}public void setB(B b) {this.b = b;}B b;}class B {public int getNo() {return no;}public void setNo(int no) {this.no = no;}int no;}?
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><A><b><no>60</no></b><id>id for a</id></A>?