休息请求未映射到对象

Question

I have the following request JSON body:

and at backend I have this REST method:

@JsonView(RestServiceResponseView.InstitutionUserConnectionAndSchedulerPublic.class)
@RequestMapping(value = "/schedules/{institutionuserconnectionid}", method = RequestMethod.POST, produces = "application/json")
public @ResponseBody List<ScheduleResponseWrapper> createScheduleIntervalContainers(
        @PathVariable(value = "institutionuserconnectionid")
        final String institutionUserConnectionId,
        final @RequestBody(required = true) ScheduleIntervalContainerWrapper scheduleIntervalContainerWrapper) throws BusinessException {

ScheduleIntervalContainerWrapper looks like this:

public class ScheduleIntervalContainerWrapper implements Serializable {

private static final long serialVersionUID = 5430337066683314866L;
private String start;
private String end;
private String startTime;
private String endTime;

public ScheduleIntervalContainerWrapper() {
}

public String getStart() {
    return start;
}

public void setStart(final String start) {
    this.start = start;
}

public String getEnd() {
    return end;
}

the ScheduleIntervalContainerWrapper- object at rest method is not null but the fields are not null. If I use a String instead of ScheduleIntervalContainerWrapper- object at rest service method than JSON- String is ok - therefore JacksonMapper can not map the fields but I don't know why. Does anyone know what I am doing wrong? Thanks a lot!

Answer 1

Jackson cannot map your JSON into the object because your JSON contains a single element that is not found within the fields of ScheduleIntervalContainerWrapper namely scheduleIntervalContainerWrapper .

You can either use Jackson to unwrap your JSON, using

mapper.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true);

and annotating your model with @JsonRootName(value = "scheduleIntervalContainerWrapper");

Or you could simply send the JSON without the wrapper :

{"start" : "13.10.2015", "end" : "13.10.2015", "startTime": "7.0", "endTime" : "19.0"}