javax bean验证不处理方法参数

javax验证没有处理方法参数..这是一个测试代码,javax验证都不适用于方法参数…

@RequestMapping(value = "/{id}", method = RequestMethod.PUT, params = "action=testAction")
public Test update(
        @Size(min = 1) @RequestBody List<String> ids,
        @Min(3) @PathVariable String name) {
    return doSomething(ids, name);
}

但我有类级别的验证,完美的工作……

@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
public RoleType create (@RequestBody @Validated(FieldType.class) User user) {
    ...
}

和

@Size(min = 2, max = 10, groups = { FieldType.class }, message = "Invalid user code")
 public String getId() {
    return _id  ;
}

– 解决方案 –

根据接受的答案遵循所有步骤.
而另一个补充是在班级上的宣布

@Validated
class UserController
{
   @RequestMapping(value = "/{id}", method = RequestMethod.PUT, params ="action=testAction")
   public Test update(@Size(min = 1) @RequestBody List<String> ids,@Min(3) @PathVariable String name) {
    return doSomething(ids, name);
}
}

解决方法:

你需要注册MethodValidationPostProcessor bean来踢方法级别验证注释

delegates to a JSR-303 provider for performing method-level
validation on annotated methods.

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

然后,

@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public Test update(
        @Size(min = 1) @RequestBody List<String> ids,
        @Min(3) @PathVariable("id") String name) {
    return doSomething(ids, name);
}

如果要处理验证异常

@ExceptionHandler(value = { ConstraintViolationException.class })
 @ResponseStatus(value = HttpStatus.BAD_REQUEST)
 public String handleResourceNotFoundException(ConstraintViolationException e) {
      Set<ConstraintViolation<?>> violations = e.getConstraintViolations();
      StringBuilder strBuilder = new StringBuilder();
      for (ConstraintViolation<?> violation : violations ) {
           strBuilder.append(violation.getMessage() + "\n");
      }
      return strBuilder.toString();
 }

标签：java,spring,bean-validation,spring-boot-2,hibernate-validator
来源： https://codeday.me/bug/20190623/1267228.html