Question

我有一个名为 联系人 的基本抽象类和两个名为电话和 <的子类em>地址 ，它扩展了基类联系。

还有另一个名为客户的模型，其中包含联系

类型的属性

Contact.java

package test;

import javax.xml.bind.annotation.XmlSeeAlso;

@XmlSeeAlso({Address.class, Phone.class})
public abstract class Contact {

}

Phone.java

package test;

import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Phone extends Contact {

private String number;

public String getNumber() {
    return number;
}

public void setNumber(String number) {
    this.number = number;
}
}

Address.java

package test;

public class Address extends Contact{

private String name;
private String city;

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getCity() {
    return city;
}
public void setCity(String city) {
    this.city = city;
}   
}

Customer.java

package test;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Customer {

@XmlElement(name="contact")
private Contact contact1;

    public Contact getContact1() {
        return contact1;
    }

    public void setContact1(Contact contact) {
        this.contact1 = contact;
    }

@XmlElement(name="contact")
private Contact contact;

    public Contact getContact() {
        return contact;
    }

    public void setContact(Contact contact) {
        this.contact = contact;
    }

}

情况是，当我尝试编组客户模型时，我得到了预期的xml层次结构，如下所示

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<customer>
    <contact xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="phone">
        <number>12345</number>
    </contact>
    <contact xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="address">
        <city>New York</city>
    </contact>
</customer>

JAXB能够找到Customer模型属性的类型（contact和contact1作为Address和Phone），并且已经生成了xml。

但是当我尝试整理模型手机时，生成的输出不会被视为父模型联系

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<phone>
    <number>12345</number>
</phone>

我原以为输出xml会有一个Contact模型元素，因为它是父元素。

这是我用于编组的代码

package test;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;

public class Demo {

    public static void main(String[] args) throws Exception {

        Customer customer = new Customer();
        Address address1 = new Address();
        address1.setCity("New York");
        customer.setContact(address1);

        Phone p = new Phone();
        p.setNumber("12345");

        customer.setContact1(p);

        JAXBContext jc = JAXBContext.newInstance(Customer.class, Contact.class);
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

        marshaller.marshal(customer, System.out);       
        marshaller.marshal(p, System.out);       

    }

}

请有人让我了解如何获得预期的xml输出。

JAXB编组 - 在编组子模型时没有得到预期的xml层次结构

0 个答案: