JAXBContext中bean和xml之间的转换

@Data
@AllArgsConstructor
@NoArgsConstructor //需要无惨构造器
@XmlRootElement
public class ClassA {

    private String file1;
    private String file2;

}

public class jbTest {
    public static void main(String[] args) {
        // bean转换成xml
        ClassA a=new ClassA("hello string","hello int");
        System.out.println(a);
        try {
            JAXBContext context = JAXBContext.newInstance(ClassA.class);
            Marshaller marshaller = context.createMarshaller();
            marshaller.marshal(a,System.out);
        } catch (JAXBException e) {
            e.printStackTrace();
        }

        printLine();

        // xml转换成bean
        String xmlStr="<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>" +
                "<classA><file1>hello string</file1><file2>hello int</file2></classA>";
        try {
            JAXBContext context = JAXBContext.newInstance(ClassA.class);
            Unmarshaller unmarshaller = context.createUnmarshaller();
            ClassA a2 = (ClassA) unmarshaller.unmarshal(new StringReader(xmlStr));
            System.out.println(a2);
        } catch (JAXBException e) {
            e.printStackTrace();
        }

    }
    public static void printLine(){
        System.out.println("===============================");
    }
}