@ Validated and @ Valid Exception Catch Handling

Directories @ Validated and @ Valid Exception Capture Exceptions There are 3 different annotation locations for @ Valid and @ Validated

@ Validated and @ Valid Exception Trap

There are 3 kinds of anomalies

BindException Form submission is valid, but it will not be valid for submission in json format MethodArgumentNotValidException The preceding paragraph is valid in json format ConstraintViolationException Add @ RequestParam to the parameter or @ NotBlank @ NotNull to the parameter, etc

The difference between @ Valid and @ Validated

@Valid Is used when using Hibernate validation @Validated Is used only by the Spring Validator verification mechanism

Explanation: JSR303 of java declares an interface like @ Valid, and Hibernate-validator implements it

@ Validation encapsulates @ Valid twice. There is no difference in use, but there are differences in grouping, annotation position, nesting verification and other functions. Here, these situations are mainly explained.

Annotation position

@Validated Used on types, methods, and method parameters. But not for member properties (field) @Valid Can be used on methods, constructors, method parameters, and member properties (field)