JAXB Fragment Marshal 不带命名空间

JAXB（Java Architecture for XML Binding）是Java语言中用于将Java对象与XML数据进行相互转换的技术。它提供了一种简单且灵活的方式来处理XML数据，使开发人员能够轻松地在Java应用程序中读取和写入XML。

java
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import java.io.StringWriter;
public class JAXBFragmentMarshalExample {
    public static void main(String[] args) {
        try {
            // 创建JAXBContext对象
            JAXBContext jaxbContext = JAXBContext.newInstance(Student.class);
            // 创建Marshaller对象
            Marshaller marshaller = jaxbContext.createMarshaller();
            // 设置Marshaller属性，不包含命名空间
            marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
            // 创建Java对象
            Student student = new Student();
            student.setId(1);
            student.setName("John Doe");
            student.setAge(20);
            // 将Java对象转换为XML数据
            StringWriter writer = new StringWriter();
            marshaller.marshal(student, writer);
            // 输出XML数据
            System.out.println(writer.toString());
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
}
class Student {
    private int id;
    private String name;
    private int age;
    // 省略getter和setter方法
}

xml
    1
    John Doe
    20