可以手動(dòng)校驗(yàn)，代碼如下。

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import java.util.Set;

class Test{
    private static class User {

        @NotNull(message = "姓名不能為空")
        private String name;
        
        @Min(value = 1 ,message = "年齡不能小于0")
        @NotNull(message = "age不能為空")
        private Integer age;
        @NotNull(message = "id不能為空")
        private Integer id;
        //省略get set方法
    }


    //驗(yàn)證代碼
    public static void main(String[] args) {
        User user = new User();
        validate(user);
    }

    private static void validate(Object o){
        ValidatorFactory vf = Validation.buildDefaultValidatorFactory();
        Validator validator = vf.getValidator();
        Set<ConstraintViolation<Object>> set = validator.validate(o);
        for (ConstraintViolation<Object> constraintViolation : set) {
            System.out.println(constraintViolation.getPropertyPath()+":"+constraintViolation.getMessage());
        }
    }
}