Jackson 使用不同的字段名称进行反序列化和序列化

Question

I have a class that I want to deserialize and serialize with Jackson. Currently this is what I have

class Person {
    @JsonAlias("fullName")
    @JsonDeserialize(using = NameDeserializer.class)
    String name;
}

I want to be able to read from {"fullName": "John Doe"} and write to {"name": "John Doe"} .

I am also using Lombok to create setter and getter, so I could not use @JsonProperty on method level. Any idea how would I approach this, because currently it seems like the @JsonAlias is not working as expected. I'm using Jackson 2.10 to map object.

EDIT

Turns out using Alias works just fine. Though in figuring out how it didn't work the first time, I override lombok setter

@JsonProperty("firstName")
public void setName(String name){
    this.name = name;
}

From here I found out that my Deserializer is actually the problem.

Answer 1

Just remove the custom deserializer, and annotate the field with @JsonProperty , which should make your scenario work:

class Person {
    @JsonAlias("fullName")
    @JsonProperty
    String name;
}

The custom deserializer controls how the deserialization is done, and this is where the alias is probably being ignored.

Answer 2

you can use JsonProperty annotation with properties as it is written here https://github.com/FasterXML/jackson-annotations

public class Name {
    @JsonProperty("firstName")
    public String _first_name;
}