Spring - Convert JSON String to JSON object

Question

I have the user table stored as following:

|---------------------|------------------|-------------------------------------------------------------|
|      id             |     name         |    address                       
|---------------------|------------------|-------------------------------------------------------------|
|      1              |     ken          | {"street":"Street 1","city":"City1", "country":"USA"}       |     
|---------------------|------------------|-------------------------------------------------------------|

My POJO:

public class User{
   private int id;
   private String name;
   private String address;
    //setters and getters
}

In my RESTful services i wish to have the following JSON as response when i call for my API:

{
   "id": 1,
   "name": "ken",
   "address":{
        "street":"Street 1",
        "city":"City1", 
        "country":"USA"
   }
}

I can do this by changing my address in POJO to a address object, then map the string into the adress object.

But is there any other ways that i keep my address as string in POJO, then it will render as JSON?

hades · Accepted Answer · 2019-01-09 17:36:59Z

3

you can use @JsonSerialize on your property:

@JsonSerialize(using = CustomeSerializer.class)
private String address;


public class CustomSerializer extends StdSerializer<String>{
    public CustomSerializer(){
        this(null);
    }
    public CustomSerializer(Class<String> t) {
        super(t);
    }

    @Override
    public void serialize(String address, JsonGenerator jsonGenerator,
                          SerializerProvider serializerProvider) throws IOException {
        jsonGenerator.writeObject(new ObjectMapper().readTree(address));
    }
}

edited Jan 9, 2019 at 17:36

hades

4,77410 gold badges52 silver badges80 bronze badges

answered Jan 8, 2019 at 11:00

Sarah

862 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Spring - Convert JSON String to JSON object

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related