[FIXED] SpringBoot, Hibernate and REST - date format in JSON

Issue

I have a problem with date format in JSON response generated in REST project (SpringBoot+Hibernate).

When I call function I got JSON like this:

"rezerwacjaDataOd": 1535580000000,
"rezerwacjaDataDo": 1535839200000,
"rezerwacjaGodzOd": "14:00:00",
"rezerwacjaGodzDo": "12:00:00"

my entity:

private Date rezerwacjaDataOd;
private Date rezerwacjaDataDo;
private Time rezerwacjaGodzOd;
private Time rezerwacjaGodzDo;

It's Date from java.sql and Time from java.sql too

My controller:

@RestController
@CrossOrigin
@RequestMapping("api/rezerwacja")
@Api
public class RezerwacjaController {
...
  @GetMapping(value = "/getRezerwacjaById")
  public @ResponseBody
  Rezerwacja getRezerwacjaById(Integer id) {
      return rezDao.findOne(id);
  }
...

Why Time is in "12:00:00" format, but Date in 1535580000000 format? How to make Date to be in "yyyy-MM-dd" format?

Solution

You should do two things

• add spring.jackson.serialization.write-dates-as-timestamps:false in your application.properties this will disable converting dates to timestamps and instead use a ISO-8601 compliant format

• You can then customize the format by annotating the getter method of you dateOfBirth property with @JsonFormat(pattern="yyyy-MM-dd")

Answered By - Alien
Answer Checked By - Timothy Miller (JavaFixing Admin)