Question

I have the following Java bean class with gets converted to JSON using Jackson.

  public class Thing {
    public String name;

    @JsonRawValue
    public Map content = new HashMap();
  }

content is a map who’s values will be raw JSON from another source. For example:

String jsonFromElsewhere = "{ \"foo\": \"bar\" }";

Thing t = new Thing();
t.name = "test";
t.content.put("1", jsonFromElsewhere);

The desired generated JSON is:

{"name":"test","content":{"1":{ "foo": "bar" }}}

However using @JsonRawValue results in:

{"name":"test","content":{1={ "foo": "bar" }}}

What I need is a way to specify @JsonRawValue for only for the Map’s value. Is this possible with Jackson?

Answer 1

No. You could easily create custom JsonSerializer to do that though.

Also, maybe rather just use one-off POJO:

public class RawHolder {
   @JsonProperty("1")
   public String raw;
}

public class Thing {
   public String name;
   public RawHolder content;
}