CODEWITHSUNDEEP
javaspring-bootvalidationannotationscustomvalidator
jack
jack

Reputation: 43

Custom validations for GET mapping with pathvariable

I want to do a custom validations using spring boot for below method.I want to validate "id" if it is other than a to z, 0 to 9 and - then I want to set error message and pass that in ResponseEntity. 

@RestController
public class DataController {

    @Autowired      DataService dataService;

    @RequestMapping("/data/{id}")
    public ResponseEntity<Data> getData(@PathVariable String id)
    {       
        Data messages = dataService.getData(id, Data.DataFormat.ALL);
        return new ResponseEntity<>(messages, HttpStatus.OK);
    }

Upvotes: 1

Views: 2202

Answers (2)

Golam Mazid Sajib
Golam Mazid Sajib

Reputation: 9447

Another solution: You can use @Pattern and don't forget to use @Validated before your class.

@RestController
@RequestMapping("required url")
@Validated
public class yourClassName{
    @RequestMapping("/data/{id}")
    public ResponseEntity<Data> getData(@Valid @Pattern(regexp = "^[a-z0-9\\-]+$",message = "Your custom message") @PathVariable String id){       
        Data messages = dataService.getData(id, Data.DataFormat.ALL);
        return new ResponseEntity<>(messages, HttpStatus.OK);
    }
}

Upvotes: 1

Mạnh Quyết Nguyễn
Mạnh Quyết Nguyễn

Reputation: 18235

You can't validate a single primitive type in parameter automatically.

You have to validate it manually.

Try this:

private static final Pattern ACCEPTED_CHARACTERS = Pattern.compile("^[a-z0-9\\-]+$");

@RequestMapping("/data/{id}")
public ResponseEntity<Data> getData(@PathVariable String id)
{       
    if (!ACCEPTED_CHARACTERS.matcher(id).matches()) {
      return new ResponseEntity<>("Your messge", YOUR CODE);
    }
    Data messages = dataService.getData(id, Data.DataFormat.ALL);
    return new ResponseEntity<>(messages, HttpStatus.OK);
}

In real app, the test for pattern should be done in an utility class

Upvotes: 2

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