CODEWITHSUNDEEP
javajsonmongodbjackson
Dupont
Dupont

Reputation: 403

jackson do not deserialize child list object

I receive the following JSON: 

{"firstName":"charle","lastName":"charly","books":[{"title":"navle"}]}

And i try to parse it into this Jackson object:

@JsonIgnoreProperties(ignoreUnknown = true)
public class Person {

  @Id @ObjectId
  private String _id;

  private String firstName;
  private String lastName;
  List<Book> books; 
// getters/setters ..
}

The problem is that the Object "Person" that i get have always an empty list of books !

What i'm missing ?

Upvotes: 1

Views: 2933

Answers (2)

Dupont
Dupont

Reputation: 403

The attribut "title" of the book should be public or you must annotate his getter like this:

@JsonProperty("title")
public String getTitle() {
   return title;
}

Upvotes: 1

Drejc
Drejc

Reputation: 14286

Make the list of books public, Jackson will serialize only "visible" properties. Plus Book properties must be public.

public List<Book> books;

or better create a getter

@JsonProperty("books")
public List<Books> getBooks() {
   return books;
}

Upvotes: 0

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