Post nested Json to spring controller using Jackson data binding - json

Question

Well I am trying to retrieve a nested json in spring controller and getting "The request sent by the client was syntactically incorrect."
My code is working and getting the correct data binding if I don't do nested json format, so I can conclude that maybe something is not right in my DTO.
CURL Command:
CURL -i -H "Content-Type: application/json" -X POST http://localhost:8080/insertMapping -d '{"mapping": {"adobe_segment_id": "125", "dp_key_id": "1"}, "type": "adobe"}'
JSON:
{"mapping": {"adobe_segment_id": "125", "dp_key_id": "1"}, "type": "adobe"}
Controller:
#RequestMapping(value = "/insertMapping", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<String> createUser(#RequestBody RequestBodyDTO mapping) {
LOG.info("/insertMapping" + " ,type:" + mapping.getType().getType());
return null;
}
RequestBodyDTO:
public class RequestBodyDTO {
private MappingDTO mapping;
private TypeDTO type;
public TypeDTO getType() {
return type;
}
public void setType(TypeDTO type) {
this.type = type;
}
public MappingDTO getMapping() {
return mapping;
}
public void setMapping(MappingDTO mapping) {
this.mapping = mapping;
}
}
MappingDTO:
public class MappingDTO {
// adobe
private Integer adobe_segment_id;
private Integer dp_key_id;
public Integer getAdobe_segment_id() {
return adobe_segment_id;
}
public void setAdobe_segment_id(Integer adobe_segment_id) {
this.adobe_segment_id = adobe_segment_id;
}
public Integer getDp_key_id() {
return dp_key_id;
}
public void setDp_key_id(Integer dp_key_id) {
this.dp_key_id = dp_key_id;
}
}
TypeDTO:
public class TypeDTO {
private String type;
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}

Answer 1

Problem resolved after I changed "private TypeDTO type" to "private String type".