ConstraintViolationException in spring rest

Question

I have next spring rest controller for handle my exception:

@ExceptionHandler(ConstraintViolationException.class)
@ResponseStatus(HttpStatus.BAD_REQUEST)
pub         


        

Answer 1

Try to reproduce next steps:

• Add to your WebConfiguration file
  

@Bean
public MethodValidationPostProcessor methodValidationPostProcessor() {
    return new MethodValidationPostProcessor();
}

• mark your Controller with @Validated

• Mark your paramater in Controller's method with

@Pattern(regexp = "\\d+") @RequestParam String param

• Then just call that method with parameter like "Some string without digits".

If you want to use that Entity. Do something like

@Valid @RequestBody Device device 

in your method. And you can skip all previous steps.