How to throw Spring @Valid "exception"?

Question

I'm using Spring to build my REST api. One of my methods is decorated with @Valid. This produces a JSON that looks like this:

{
  "timestamp": "2019-11-04T19:07:08.387+0000",
  "status": 400,
  "error": "Bad Request",
  "errors": [
    {
      "codes": [
        "NotNull.customer.firstName",
        "NotNull.firstName",
        "NotNull.java.lang.String",
        "NotNull"
      ],
      "arguments": [
        {
          "codes": [
            "customer.firstName",
            "firstName"
          ],
          "arguments": null,
          "defaultMessage": "firstName",
          "code": "firstName"
        }
      ],
      "defaultMessage": "must not be null",
      "objectName": "customer",
      "field": "firstName",
      "rejectedValue": null,
      "bindingFailure": false,
      "code": "NotNull"
    }
  ],
  "message": "Validation failed for object='customer'. Error count: 1",
  "path": "/customers"
}

Doing a Google search, to produce a HTTP 400 error, I'm supposed to throw ResponseStatusException(HttpStatus.BAD_REQUEST);

This produces a JSON like this:

{
  "timestamp": "2019-11-04T19:08:02.408+0000",
  "status": 400,
  "error": "Bad Request",
  "message": "400 BAD_REQUEST",
  "path": "/customers"
}

The message is easy to change obviously, but I'm more asking about how to get the Errors array. That doesn't seem to be in ResponseStatusException?

I can recreate it pretty easily, but I was hoping there was one built already?

EDIT: This isn't input validation per say... this is throwing an error FOR the input, but I need to hit the database first to do the actual validation, so that part is in my service layer and throws an internal exception if it isn't valid.

probably need to see the code were it is throwing the exception — Ryuzaki L, Nov 04 '19 at 21:37
@Deadpool I'm just doing: throw new ResponseStatusException(HttpStatus.BAD_REQUEST); I can customize the message as a parameter, but the big response (including the errors array) is automatically coming from the use of Valid on my controller method. — SledgeHammer, Nov 04 '19 at 21:40
@chrylis-onstrike- nope... that doesn't have the errors field either. — SledgeHammer, Nov 04 '19 at 21:52
I thinks this might be what you need to do - https://stackoverflow.com/a/53171963/5421427 — Shubham Sharma, Nov 04 '19 at 21:58
@ShubhamSharma This looks promising. I'll play around with this. Thanks! — SledgeHammer, Nov 04 '19 at 22:02

score 0 · Answer 1 · answered Nov 05 '19 at 04:49

0

If you are using the Validator, then you can customize the errors using a configuration file like validator.properties

answered Nov 05 '19 at 04:49

user3310115

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How to throw Spring @Valid "exception"?

1 Answers1