How to add custom error messages in Hibernate validator

Question

I have a simple class like this,

import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.Length;

public class Form implements Serializable {
   @NotNull
   @Length(min = 2, max = 20)
   private String lastName;
}

I have messages.properties file in the classpath. It's then loaded via Spring bean as follows,

<bean name="validator"
      class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
    <property name="validationMessageSource">
        <ref bean="resourceBundleLocator"/>
    </property>
</bean>

<bean name="resourceBundleLocator" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basenames">
        <list>
            <value>classpath*:messages.properties</value>
        </list>
    </property>
</bean>

All I want is to get error messages customized according to the bean validated. In other words I want to have each ConstraintViolation object return the error message I have defined in my property file instead of the default one. Is it possible to add message property with a value like this format {xxx.yyyy.zzzz} and refer that message from the messages.properties file ?

ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
    Validator validator = factory.getValidator();
    Set<ConstraintViolation<Form>> inputErrors = validator.validate(form);

If I want to customize the default message for @NotNull and @Length, how can I do that?

My experience on Hibernate validation is zero, Any sample code or step by step guide would be appreciated.

naXa stands with Ukraine · Accepted Answer · 2017-10-31 15:45:37Z

4

You have this resource bundle file holding the message values.

I think you have to use the path to the i.e. @NotNull annotation to override the message by hand! like javax.validation.constraints.NotNull=Notnull error happened! or something like that!

Look here for that :

Hibernate Validator - The error message

Hope that helps

edited Oct 31, 2017 at 15:45

naXa stands with Ukraine

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answered Aug 17, 2011 at 13:24

stereoscope

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6 Comments

nash Over a year ago

Yeah fritz, it's true, but I don't want to override the default messageTemplate path because I have many @NotNull(and of course other annotations) in my Form class. I want to add specific error messages for each property. Is there an easy way without implementing custom MessageInterpolator. I found couple of custom message interpolator implementations, but I don't understand any of these. If you can give me the simplest possible solution with a full source code !!.

nash Over a year ago

And also I tried overriding message attribute of each validation annotation with a format like this {vvvv.ssss.rrrt.message}, but when I called the getMessage of ConstraintViolation it's printed as it is, not the message of it.

stereoscope Over a year ago

I see! the only way which comes to my mind is to create a custom validator which holds a message ! like @MyNotNull + the message?! or you could do something like this ` ValidatorFactory factory = Validation.buildDefaultValidatorFactory(); Validator validator = factory.getValidator(); Car car = new Car(null); Set<ConstraintViolation<Car>> constraintViolations = validator.validate(car); assertEquals(1, constraintViolations.size()); assertEquals("may not be null", constraintViolations.iterator().next().getMessage()); ` and intercept the message in the object!?

nash Over a year ago

Ok, I may be crazy, and apologize for that.I have to do this anyway, Is there a way to get the messages(key and value pairs) defined in the messages.properties file? If so I can go for the second option you mentioned earlier.

stereoscope Over a year ago

Yeah ! don't mind thats a tricky task ! try that stackoverflow.com/questions/3372569/… what framework are you using. @Autowired private ApplicationContext context; context().getMessage("key", null, Locale.getDefault()); something like that could do the job if you are using i.e. spring!

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