javax验证约束注释在验证期间被忽略

Question

（仅在测试中使用）我有依赖项（没有spring或DI容器）

    testCompile("javax.validation:validation-api:2.0.1.Final")
    testCompile("org.hibernate.validator:hibernate-validator:6.0.13.Final")
    testCompile("org.glassfish:javax.el:3.0.0")

我可以通过

ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
Validator validator = factory.getValidator();
violations = validator.validate(myDto);

myDto在哪里

@RestrictionsAreValid
public class MyDto {    
       @NotNull
       @Positive
       private Integer value;
}

哪里

 @Target(TYPE_USE)
    @Retention(RUNTIME)
    @Constraint(validatedBy = RestrictionsAreValidImpl.class)
    public @interface RestrictionsAreValid {    
        String message() default "";    
        Class<?>[] groups() default {};    
        Class<? extends Payload>[] payload() default {};
    }

哪里

public class RestrictionsAreValidImpl implements ConstraintValidator<RestrictionsAreValid, MyDto> {
    @Override
    public boolean isValid(MyDto myDto, ConstraintValidatorContext context) { 
     some code
    } 
}

在这个验证器中，所有的工作都很完美，但没有任何注释avax。验证。限制。NotNull或javax。验证。限制。积极的在现场发挥作用，他们只是被忽略了

请帮忙。断然的

很抱歉，我的真实案例是相互嵌套的DTO，所以只有高级类经过验证，但没有嵌套。

@RestrictionsAreValid
public class MyDto {    

    @Valid //  this annotation solve problem, and so on deeper in stricture
    private Map<String, AnotherDto> map;
}

而另一个有注释的字段未经验证。当我在map字段中添加@Valid时，它开始正常工作

Answer 1

对于我使用的课程，如下所示：

@Documented
@Constraint(validatedBy = RestrictionsAreValidImpl.class)
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface RestrictionsAreValid {

    /**
     * message for exceptional case.
     *
     * @return message
     */
    String message() default "";

    /**
     * Groups allow you to restrict the set of constraints applied during validation.
     *
     * @return arrays of group classes.
     */
    Class<?>[] groups() default {};

    /**
     * Payloads can be used by clients of the Bean Validation API to assign custom payload objects to a constraint.
     * This attribute is not used by the API itself.
     *
     * @return arrays of payload classes.
     */
    Class<? extends Payload>[] payload() default {};
}

public class RestrictionsAreValidImpl implements ConstraintValidator<RestrictionsAreValid, MyDto> {
    @Override
    public boolean isValid(MyDto myDto, ConstraintValidatorContext context) { 
     some code
    } 
}

而不是DTO：

@RestrictionsAreValid
public class DTO{
}