For Date serialization: What is the equivalent annotation of @XmlJavaTypeAdapter from JAXB2 to jackson-dataformat-xml?

问题

I have a Spring Web Application working with the 4.3.6 version. It works with XML and JSON until some point.

For Json I use Jackson.
For XML I used to work with JAXB2, but not anymore because it does not support Generic collections

A Generic collection is represented such as:

public class GenericCollection<T> {

        private Collection<T> collection;

        public GenericCollection(){
            this.collection = new LinkedHashSet<>();
        }

        public GenericCollection(Collection<T> collection){
            this.collection = collection;
        }

...

Thus for XML the application moved from JABX2 to Jackson working with the jackson-dataformat-xml project

To serialize a Date for JSON I use:

public class JsonDateSerializer extends JsonSerializer<Date> {

    private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    /**
     * {@inheritDoc}
     */
    @Override
    public void serialize(Date value, JsonGenerator gen, SerializerProvider serializers)
            throws IOException, JsonProcessingException {
        String formattedDate = dateFormat.format(value);
        gen.writeString(formattedDate);
    }

}

And used how:

@JsonProperty("fecha")
@JsonSerialize(using=JsonDateSerializer.class)
public Date getFecha() {
    return fecha;
}

For XML, when JAXB2 was used, again for Date serialization the following was used:

public class XmlDateAdapter extends XmlAdapter<String, Date> {

    private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    /**
     * {@inheritDoc}
     */
    @Override
    public Date unmarshal(String v) throws Exception {
        return dateFormat.parse(v);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String marshal(Date v) throws Exception {
        return dateFormat.format(v);
    }

}

And used how:

@JsonProperty("fecha")
@JsonSerialize(using=JsonDateSerializer.class)
@XmlElement(name="fecha")
@XmlJavaTypeAdapter(XmlDateAdapter.class)
public Date getFecha() {
    return fecha;
}

Due this migration from Jaxb2 to jackson-dataformat-xml I know that the latter ignores the JAXB2 annotations. Thus working now with:

@JsonProperty("fecha")
@JsonSerialize(using=JsonDateSerializer.class)
@JacksonXmlProperty(localName="fecha")
@XmlJavaTypeAdapter(XmlDateAdapter.class)
public Date getFecha() {
    return fecha;
}

Therefore from @XmlElement(name="fecha") to @JacksonXmlProperty(localName="fecha")

The problem now is the that @XmlJavaTypeAdapter(XmlDateAdapter.class) is ignored too.

Question:

What is the equivalent annotation of @XmlJavaTypeAdapter from JAXB2 to jackson-dataformat-xml

来源：https://stackoverflow.com/questions/42682955/for-date-serialization-what-is-the-equivalent-annotation-of-xmljavatypeadapter

标签

xml

jackson

jackson-dataformat-xml