Question

我有一个这样的REST api：

0.toFixed(2) === "0.00"

输入存储在这个bean中：

@POST
@Path("/dopost")
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces("text/plain")
public String doPostExample(@Valid @BeanParam final DemoBean demo) {

         return "done";
}

由于我想一起验证一组字段（与位置相关），我创建了一个类级验证器。

这是我创建的注释：

@Address
public class DemoBean {

    private String address;

    private String city;

    // Other member variables

    // getters and setters
}

这里有验证器：

@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER, ElementType.TYPE_USE})
@Retention(RUNTIME)
@Constraint(validatedBy = AddressValidator.class)
@Documented
public @interface Address {

    String message() default "{com.mycompany.constraints.checkcase}";

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

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

}

然而，某些事情必定是非常错误的，因为它不起作用。我在日志中得到了这个堆栈跟踪：

public class AddressValidator implements ConstraintValidator<Address, Address> {

   public void initialize(Address constraintAnnotation) {
        // initialize the zipcode/city/country correlation service
   }

   @Override
   public boolean isValid(Address address, ConstraintValidatorContext constraintValidatorContext) {
        return true; // I put a breakpoint here, but it doesn't stop here and I have the stack trace below
    }
}

Answer 1

问题在于您的AddressValidator课程。两个通用参数ConstraintValidator<Address, Address>都引用您的Adress注释类。这是不正确的。第一个参数应该是你的注释，第二个参数应该是你的DemoBean，如下所示。

public class AddressValidator implements ConstraintValidator<Address, DemoBean> {

    public void initialize(Address constraintAnnotation) {
      // initialize the zipcode/city/country correlation service
    }

    @Override
    public boolean isValid(DemoBean addressBean, ConstraintValidatorContext constraintValidatorContext) {
        return true; 
    }
}

REST api的类级验证器甚至没有执行验证器

1 个答案: