CODEWITHSUNDEEP
javajackson
faoxis
faoxis

Reputation: 2012

Can get field from inner json object with jackson?

I have json like that:

{
    "somethingElse": "foobar",
    "snils": {
        "number": "123"
    }
}

And class:

@Data
public class Documents {
    private String snilsNumber;
    private String somethingElse;
}

Can I easily map json to my class with annotation or something else?

Upvotes: 1

Views: 375

Answers (2)

Michał Ziober
Michał Ziober

Reputation: 38655

You can deserialise it using one extra update method with JsonProperty annotation.

class Documents {

    private String snilsNumber;
    private String somethingElse;

    @JsonProperty("snils")
    private void unpackSnils(Map<String, Object> brand) {
        this.snilsNumber = (String) brand.get("number");
    }

    // getters, setters, toString
}

See also:

  1. Jackson nested values
  2. unwrap inner json object using jackson

Upvotes: 0

Ryuzaki L
Ryuzaki L

Reputation: 40048

You can use '@JsonRootName'

@Data
 @JsonRootName(value = "snils")
  @JsonIgnoreProperties(unknown = true)
 public class Documents {
         private String number;
  }

Upvotes: 1

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