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

A better way to do this is to create a wrapper class and then create an object of Foo inside it.

Sample code:

public class ResponseWrapper {

   @SerializedName("Foo")
   private Foo foo;

   public Foo getFoo() {
      return foo;
   }

   public void setFoo(Foo foo) {
      this.foo= foo;
   }
 }

Then you can easily parse to JSON using:

new GsonBuilder().create().toJson(responseWrapperObj);

which will give you the desired structure:

{"Foo":{"number":10,"str":"hello"}}