@Autowired
TechnicianToStationRepository technicianToStationRepository;

@RequestMapping("/staffing")
@ResponseBody
public String staffing()
{
    ObjectMapper mapper1 = new ObjectMapper();
    TypeReference<TechnicianToStation> typeReferenceTechToStation = new TypeReference<TechnicianToStation>(){};

    InputStream inputStreamTechToStation = TypeReference.class.getResourceAsStream("/json/technicianToStationInfo.json");

    try {

        TechnicianToStation technicianToStationInfo = mapper1.readValue(inputStreamTechToStation,typeReferenceTechToStation);

        technicianToStationRepository.save(technicianToStationInfo);


    } catch (IOException e){
        System.out.println("Unable to save users: " + e.getMessage());
    }