Convert java object with org.w3c.dom.Element to string and get error when convert back

Question

I have wrapper class:

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Wrapper {
    private String id;
    private int number;
    private Element inte         


        

Answer 1

You have two options:

1. Change internal type to Document or Node.
2. Write custom deserialiser which will do the same as you in line: Element element = document.getDocumentElement();

Custom deserialiser:

class ElementDeserializer extends DOMDeserializer<Element> {

    private static final long serialVersionUID = 1L;

    public ElementDeserializer() {
        super(Element.class);
    }

    @Override
    public Element _deserialize(String value, DeserializationContext ctxt)
        throws IllegalArgumentException {
        return parse(value).getDocumentElement();
    }
}

You can register it as below:

SimpleModule elementModule = new SimpleModule();
elementModule.addDeserializer(Element.class, new ElementDeserializer());

ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(elementModule);

But I suggest to stay with custom deserialisers for Documen - com.fasterxml.jackson.databind.ext.DOMDeserializer.DocumentDeserializer and Node - com.fasterxml.jackson.databind.ext.DOMDeserializer.NodeDeserializer.