How to filter the json response returning from spring rest web service

Question

How to filter the json response returning from spring rest web service.

When use call the customEvents i only need to outout the eventId and the Event name only. Whe

Answer 1

You can use @JsonView annotation for this purpose. But unfortunately it works only for 4.x and above.

This is the cleanest way that I know:

public class View {
    public interface Summary {}
    public interface Details extends Summary{}
}

Class CustomEvent{
    @JsonView(View.Summary.class)
    long id;

    @JsonView(View.Summary.class)
    String eventName;

    @JsonView(View.Details.class)
    Account createdBy;

    @JsonView(View.Details.class)
    Account modifiedBy;
}

@Controller
public class CustomEventService
{
    @JsonView(View.Summary.class)
    @RequestMapping("/customEvents")
    public @ResponseBody List getCustomEventSummaries() {}

    @RequestMapping("/customEvents/{eventId}")
    public @ResponseBody CustomEvent getCustomEvent(@PathVariable("eventId") Long eventId) {}
}

Keep in mind that by default fields that do not have the @JsonView annotation are also serialized. That's why you need to annotate them all.

For more information please read: https://spring.io/blog/2014/12/02/latest-jackson-integration-improvements-in-spring