Java XmlElementWrapper和双向编组
我对具有双向关系的类的编组有一个问题。 下面的示例将通过封送PhoneNumber实例生成无效的xmlJava XmlElementWrapper和双向编组,java,eclipselink,moxy,Java,Eclipselink,Moxy,我对具有双向关系的类的编组有一个问题。 下面的示例将通过封送PhoneNumber实例生成无效的xml <?xml version="1.0" encoding="UTF-8"?> <phonenumber> <person> <phone-numbers> <firstname>yvonne</firstname> </person> <number
<?xml version="1.0" encoding="UTF-8"?>
<phonenumber>
<person>
<phone-numbers>
<firstname>yvonne</firstname>
</person>
<number>12345</number>
</phonenumber>
伊冯
12345
编组期间不会引发异常。
如果没有XmlElementWrapper注释,它就可以工作。
是虫子还是我错过了什么
编组Person实例的另一种方法是使用或不使用
XmlElementWrapper注释
我使用的是EclispseLink MOXy 2.5.1
import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
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.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import org.eclipse.persistence.jaxb.JAXBContextFactory;
import org.eclipse.persistence.jaxb.MarshallerProperties;
import org.eclipse.persistence.oxm.MediaType;
import org.eclipse.persistence.oxm.annotations.XmlInverseReference;
public final class XmlElementWrapperApp {
@XmlRootElement(name = "person")
static class PersonEntity {
private String firstname;
@XmlElementWrapper(name = "phone-numbers")
@XmlElement(name = "phone")
@XmlInverseReference(mappedBy = "person")
private List<PhoneNumberEntity> phoneNumbers;
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getFirstname() {
return firstname;
}
public void setPhoneNumbers(List<PhoneNumberEntity> phoneNumbers) {
this.phoneNumbers = new ArrayList<>(phoneNumbers);
}
public List<PhoneNumberEntity> getPhoneNumbers() {
return phoneNumbers;
}
public void addPhoneNumber(PhoneNumberEntity phoneNumber) {
if (phoneNumbers == null) {
phoneNumbers = new ArrayList<>();
}
this.phoneNumbers.add(phoneNumber);
}
}
@XmlRootElement(name = "phonenumber")
static class PhoneNumberEntity {
private String number;
@XmlElement
@XmlInverseReference(mappedBy = "phoneNumbers")
private PersonEntity person;
public void setNumber(String number) {
this.number = number;
}
public String getNumber() {
return number;
}
void setPerson(PersonEntity person) {
this.person = person;
}
PersonEntity getPerson() {
return person;
}
}
public static void main(String[] args) throws JAXBException {
testPerson();
testPhoneNumber();
}
static void testPerson() throws JAXBException {
System.out.println("person:");
PersonEntity personEntity = createPersonEntity();
String entityJson = marshal(personEntity);
System.out.println(entityJson);
}
static void testPhoneNumber() throws JAXBException {
System.out.println("phoneNumber:");
PersonEntity personEntity = createPersonEntity();
PhoneNumberEntity phoneNumberEntity = personEntity.getPhoneNumbers().get(0);
String entityJson = marshal(phoneNumberEntity);
System.out.println(entityJson);
unmarshal(PhoneNumberEntity.class, entityJson);
}
static PersonEntity createPersonEntity() {
PersonEntity person = new PersonEntity();
person.setFirstname("yvonne");
PhoneNumberEntity firstPhoneNumber = new PhoneNumberEntity();
firstPhoneNumber.setNumber("12345");
firstPhoneNumber.setPerson(person);
PhoneNumberEntity secondPhoneNumber = new PhoneNumberEntity();
secondPhoneNumber.setNumber("54321");
secondPhoneNumber.setPerson(person);
person.addPhoneNumber(firstPhoneNumber);
person.addPhoneNumber(secondPhoneNumber);
return person;
}
static String marshal(Object toMarshal) throws JAXBException {
JAXBContext jc = JAXBContextFactory.createContext(new Class[] {toMarshal.getClass()}, null);
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
// marshaller.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
marshaller.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_XML);
StringWriter sw = new StringWriter();
marshaller.marshal(toMarshal, sw);
return sw.toString();
}
static <T> T unmarshal(Class<T> entityClass, String str) throws JAXBException {
JAXBContext jc = JAXBContextFactory.createContext(new Class[] {entityClass}, null);
Unmarshaller unmarshaller = jc.createUnmarshaller();
// unmarshaller.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
unmarshaller.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_XML);
return (T) unmarshaller.unmarshal(new StringReader(str));
}
}
导入java.io.StringReader;
导入java.io.StringWriter;
导入java.util.ArrayList;
导入java.util.List;
导入javax.xml.bind.JAXBContext;
导入javax.xml.bind.JAXBException;
导入javax.xml.bind.Marshaller;
导入javax.xml.bind.Unmarshaller;
导入javax.xml.bind.annotation.xmlement;
导入javax.xml.bind.annotation.XmlElementWrapper;
导入javax.xml.bind.annotation.XmlRootElement;
导入org.eclipse.persistence.jaxb.JAXBContextFactory;
导入org.eclipse.persistence.jaxb.MarshallerProperties;
导入org.eclipse.persistence.oxm.MediaType;
导入org.eclipse.persistence.oxm.annotations.xmlInversereReference;
公共最终类XmlElementWrapperApp{
@XmlRootElement(name=“person”)
静态类人格{
私有字符串名;
@XmlElementWrapper(name=“电话号码”)
@xmlement(name=“phone”)
@XmlInverseReference(mappedBy=“person”)
私人电话号码列表;
public void setFirstname(字符串firstname){
this.firstname=firstname;
}
公共字符串getFirstname(){
返回名字;
}
公用无效设置电话号码(列出电话号码){
this.phoneNumbers=新的数组列表(phoneNumbers);
}
公共列表GetPhoneNumber(){
返回电话号码;
}
public void addPhoneNumber(PhoneNumberEntity phoneNumber){
if(phoneNumbers==null){
PhoneNumber=新的ArrayList();
}
这个.phoneNumber.add(phoneNumber);
}
}
@XmlRootElement(name=“phonenumber”)
静态类音素数{
私有字符串编号;
@XmlElement
@XmlInverseReference(mappedBy=“phoneNumbers”)
私人人格;
公共无效集合号(字符串号){
这个数字=数字;
}
公共字符串getNumber(){
返回号码;
}
void setPerson(PersonEntity person){
这个人=人;
}
PersonEntity getPerson(){
返回人;
}
}
公共静态void main(字符串[]args)抛出JAXBEException{
testPerson();
testPhoneNumber();
}
静态void testPerson()抛出JAXBEException{
System.out.println(“人:”);
PersonEntity PersonEntity=createPersonEntity();
字符串entityJson=Marshall(personEntity);
System.out.println(entityJson);
}
静态void testPhoneNumber()抛出JAXBEException{
System.out.println(“电话号码:”);
PersonEntity PersonEntity=createPersonEntity();
PhoneNumberEntity PhoneNumberEntity=personEntity.GetPhoneNumber().get(0);
字符串entityJson=marshal(phoneNumberEntity);
System.out.println(entityJson);
解组(PhoneNumberEntity.class,entityJson);
}
静态PersonEntity createPersonEntity(){
PersonEntity person=新的PersonEntity();
个人。setFirstname(“yvonne”);
PhoneNumberEntity firstPhoneNumber=新的PhoneNumberEntity();
firstPhoneNumber.setNumber(“12345”);
firstPhoneNumber.setPerson(个人);
PhoneNumberEntity secondPhoneNumber=新的PhoneNumberEntity();
secondPhoneNumber.setNumber(“54321”);
secondPhoneNumber.setPerson(个人);
person.addPhoneNumber(firstPhoneNumber);
person.addPhoneNumber(第二个电话号码);
返回人;
}
静态字符串封送处理(对象toMarshal)抛出JAXBEException{
JAXBContext jc=JAXBContextFactory.createContext(新类[]{toMarshal.getClass()},null);
Marshaller=jc.createMarshaller();
setProperty(marshaller.JAXB_格式化的_输出,true);
//setProperty(MarshallerProperties.MEDIA\u TYPE、MediaType.APPLICATION\u JSON);
setProperty(MarshallerProperties.MEDIA\u TYPE、MediaType.APPLICATION\u XML);
StringWriter sw=新的StringWriter();
元帅,元帅(西南部托马沙尔);
返回sw.toString();
}
静态T unmarshal(类entityClass,字符串str)抛出JAXBEException{
JAXBContext jc=JAXBContextFactory.createContext(新类[]{entityClass},null);
Unmarshaller Unmarshaller=jc.createUnmarshaller();
//unmarshaller.setProperty(MarshallerProperties.MEDIA\u TYPE、MediaType.APPLICATION\u JSON);
unmarshaller.setProperty(MarshallerProperties.MEDIA\u TYPE、MediaType.APPLICATION\u XML);
return(T)unmarshaller.unmarshal(newstringreader(str));
}
}
我已为此问题打开了以下错误: