Api Error showing timestamp as showing milliseconds not Date in Spring Boot (Jsonformat not working)

Question

I have a problem about showing timestamp as a Date in Spring boot.

I always get timestamp as an int value shown below.

"timestamp": 1646735268046

How can I get it as a Date?

Here is my ApiError entity shown below.

@Data
@AllArgsConstructor
public class ApiError implements Serializable {

    private int statusCode;

    private HttpStatus status;

    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss'Z'", timezone = "GMT")
    private LocalDateTime timestamp;

    private String message;

    List<String> errorDetails;

}

Here is a function defined in Global Exception Handling class shown below.

    @ExceptionHandler(UserNotFoundException.class)
    public ResponseEntity<Object> handleRefreshTokenException(RefreshTokenException ex) {

        List<String> details = new ArrayList<String>();
        details.add(ex.getMessage());

        ApiError err = new ApiError(HttpStatus.BAD_REQUEST.value(), HttpStatus.BAD_REQUEST, LocalDateTime.now() ,
                "User Not Found", details);

        return ResponseEntity.status(HttpStatus.NOT_FOUND).body(err);
    }

Edited:

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")
    private LocalDateTime timestamp;

I still get int value.

first of all, you are getting `long` not `int`. Integers in Java can have max of `2^31 - 1`. can you please mention spring/boot version, if you are using that, that way we can know what jackson version you are using, OR are you using jackson explicitely (or something else)? — Anil Bhaskar, Mar 11 '22 at 06:52

score 0 · Answer 1 · answered Mar 08 '22 at 11:48

0

You are using LocalDateTime but in your format you have 'Z' which is zone-offset which is not supported by LocalDateTime. So either change to ZonedDateTime or OffsetDateTime or remove 'Z' from your format. Other than that I don't see any problems. Anyway here is a link to a similar question with a very good answer on this topic

answered Mar 08 '22 at 11:48

Michael Gantman

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I remove 'Z' but I still get int value as a timestamp. – S.N Mar 08 '22 at 12:00
Time zone is also irrelevant for LocalDateTime, try removing this also, or just for test bring back your Z and cjange LocalDateTime to OffsetDateTime see if any of those 2 options fix your problem – Michael Gantman Mar 08 '22 at 12:24
I use this format (yyyy-MM-dd HH:mm:ss) but nothing changed. – S.N Mar 08 '22 at 12:25
but did you remove timezone = "GMT"? – Michael Gantman Mar 08 '22 at 12:42
Yes, I removed it. – S.N Mar 08 '22 at 12:43
I don't have other ideas. – Michael Gantman Mar 08 '22 at 12:51
Have you ever tested it? – S.N Mar 09 '22 at 10:04
Not your code from here but I used this annotation many many times and it worked for me always – Michael Gantman Mar 09 '22 at 10:11
I already defined jackson-databind dependency to use this option but I still get this result. ("timestamp": 1646821108362) – S.N Mar 09 '22 at 10:19
I am surprised by that, it looks now as if it should work. I did use the same construct many times and it worked. I don'r have any other ideas in your case. Except in your format "yyyy-MM-dd HH:mm:ss" try to change it to "yyyy-MM-dd' 'HH:mm:ss" or "yyyy-MM-dd'T'HH:mm:ss" sometimes the format may not like spaces – Michael Gantman Mar 09 '22 at 10:24
It's probably due to the exception handler not using ResponseBody semantics, try adding @ResponseBody to the handleRefreshTokenException method – Anthony Cathers Mar 09 '22 at 20:00

Api Error showing timestamp as showing milliseconds not Date in Spring Boot (Jsonformat not working)

1 Answers1