杰克逊忽略了父母的所有领域

Question

I have 2 classes Parent and a Child .

Parent

public abstract class Parent implements Serializable{
    protected String id;
    protected String deletedAt;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getDeletedAt() {
        return deletedAt;
    }
    public void setDeletedAt(String deletedAt) {
        this.deletedAt = deletedAt;
    }
}

Child

public class Child extends Parent{
    private String name;
    public String getName(){
    ...
}

when i load the Child and try to go like this :

Child c = getChildFromDb();
c.getId();

and this is my jackson config:

JacksonConfig

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

@Configuration
public class JacksonConfig {

    @Bean
    @Primary
    public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        objectMapper.configure(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
        return objectMapper;
    }
}

the ID is null but the Name is there. What i am doing wrong ?

Answer 1

It turns out to be a problem with the DB Driver of 'rethink' for some reason rethink DB driver ignored the fields of the parent class and this caused that those fields were never stored in the DB so they were never retrieved. Changed the DB with its driver to MongoDB and it works perfectly now.