Question

这是我可以生成的XML：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<students>
<student studentId="1">
    <firstName>PEsho</firstName>
    <lastName>Peshev</lastName>
    <egn>521521512</egn>
    <city>So</city>
    <mark>5.56</mark>
    <degree>
        <university>Test1</university>
    </degree>
</student>
<student studentId="1">
    <firstName>Mesho</firstName>
    <lastName>Meshev</lastName>
    <egn>521521521</egn>
    <city>Va</city>
    <mark>5.56</mark>
    <degree>
        <university>Test2</university>
    </degree>
</student>

我想做的是在学位元素中，大学是属性，而不是元素。这是我正在使用的代码： Student.class

@XmlRootElement(name = "student")
@XmlAccessorType (XmlAccessType.FIELD)
public class Student{

@XmlAttribute
private String studentId;
private String firstName;
private String lastName;
private String egn;
private String city;
private double mark;
private Degree degree;
getters, setters ..    }

Students.class：

@XmlRootElement(name = "students")
@XmlAccessorType (XmlAccessType.FIELD)
public class Students {

@XmlElement(name = "student")
private List<Student> students = null;

public List<Student> getStudents() {
    return students;
}

public void setStudents(List<Student> students) {
    this.students = students;
}    }

Degree.class

@XmlRootElement(name = "degree")
public class Degree {


private String university;
setters, getters
}

编组程序：

JAXBContext jaxbContext = JAXBContext.newInstance(Students.class);
    Marshaller jaxbMarshaller = jaxbContext.createMarshaller();

    jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

    //Marshal the employees list in console
    jaxbMarshaller.marshal(students, System.out);

    //Marshal the employees list in file
    jaxbMarshaller.marshal(students, new File("file.xml"));

问题是当我m trying to add in a Degree.class @XmlAttribute to the university field I得到此异常时：

Exception in thread "main" com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
 Class has two properties of the same name "university"

有人可以帮我解决这个问题吗？

Answer 1

尝试将XmlAccessType.FIELD属性添加到Degree类。

示例：

@XmlRootElement(name = "degree")
@XmlAccessorType(XmlAccessType.FIELD)
public class Degree {

  @XmlAttribute
  private String university;
  setters, getters
}

JAXB向元素添加属性

1 个答案: