Gson serialize POJO with root value included?

Question

I\'m having a problem serializing an object using Gson.

@XmlRootElement
class Foo implements Serializable {
    private int number;
    private String str;

         


        

Answer 1

You need to add the element at the top of the the object tree. Something like this:

Gson gson = new Gson();
JsonElement je = gson.toJsonTree(new Foo());
JsonObject jo = new JsonObject();
jo.add("Foo", je);
System.out.println(jo.toString());
// Prints {"Foo":{"number":10,"str":"hello"}}