Spring依赖注入在ConstraintValidator中不起作用

Question

I'm trying to use my service into custom ContextValidator annotation using @Autowired. I looking for some help in old questions on SOF but I was unfortunately so I've created is one new. My goal is valid bean's property with annotation @MyId above it.

Here is my code:

@Documented
@Constraint(validatedBy = { MyIdValidator.class })
@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
@Retention(RUNTIME)
public @interface MyIdSpring {

    String message() default "Invalid ID!";

    Class<?>[] groups() default { };

    Class<? extends Payload>[] payload() default { };
}

Valdiator class:

@Configurable(autowire = Autowire.BY_TYPE, dependencyCheck = true)
public class MyIdValidator implements ConstraintValidator<MyId, TestID> {

    @Autowired
    private ITestService testService;

    @Override
    public void initialize(MyId constraintAnnotation) {
    }

    @Override
    public boolean isValid(TestID value, ConstraintValidatorContext context) {

        System.out.println(testService);

        return false;
    }
}

configuration:

@Configuration
public class ValidatorConfig {

    @Bean
    public LocalValidatorFactoryBean validator() {
        LocalValidatorFactoryBean bean = new LocalValidatorFactoryBean();
        return bean;
    }
}

service:

@Service
public class TestService implements ITestService { .. }

ITestService is always null. Can you please help me to fix it? I am using spring boot 1.5.

Answer 1

Use @Qualifier annotation to tell Spring about your implementation class.

@Autowired
@Qualifier("testService")
private ITestService testService;