Post request with json string as body and add validation to it

Question

I am trying to add string input to spring boot application. The content type is json and I am trying to add validation to it.

@RestController
@RequestMapping(value = "/entries")
public class SampleController {

    @RequestMapping(method = RequestMethod.DELETE)
    @ResponseStatus(value = HttpStatus.NO_CONTENT)
    public void delete(@RequestBody @NotBlank(message = "{field.required}") String username) throws Exception {
        //some logic
    }

}

For some reasons, @Notblank annotation does not work.

Is it right way to do it.

http://stackoverflow.com/questions/6203740/spring-web-mvc-validate-individual-request-params — Ali Dehghani, Feb 19 '16 at 11:11

score 2 · Accepted Answer · answered Feb 19 '16 at 11:30

one way to go would be creating a model/dto class and defining your @NotBlank on a String in this class. then just change your controller-code like this:

    @RequestMapping(method = RequestMethod.DELETE)
    @ResponseStatus(value = HttpStatus.NO_CONTENT)
    public void delete(@RequestBody @Valid MyClass myClass) throws Exception {
        ...
    }

For more insights, look here

score 1 · Answer 2 · edited May 23 '17 at 12:15

1

You can't use those validations on method parameters. You need to bind your parameter onto an object if you want validation. Then, you just have to add @Valid annotation. See this example.

edited May 23 '17 at 12:15

Community

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answered Feb 19 '16 at 11:31

nnunes10

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Post request with json string as body and add validation to it

2 Answers2