This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Framework 6.0.25!

Validation

See equivalent in the Reactive stack

By default, if Bean Validation is present on the classpath (for example, Hibernate Validator), the LocalValidatorFactoryBean is registered as a global Validator for use with @Valid and Validated on controller method arguments.

In Java configuration, you can customize the global Validator instance, as the following example shows:

Java
Kotlin

@Configuration
@EnableWebMvc
public class WebConfig implements WebMvcConfigurer {

	@Override
	public Validator getValidator() {
		// ...
	}
}

@Configuration
@EnableWebMvc
class WebConfig : WebMvcConfigurer {

	override fun getValidator(): Validator {
		// ...
	}
}

The following example shows how to achieve the same configuration in XML:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans
		https://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/mvc
		https://www.springframework.org/schema/mvc/spring-mvc.xsd">

	<mvc:annotation-driven validator="globalValidator"/>

</beans>

Note that you can also register Validator implementations locally, as the following example shows:

Java
Kotlin

@Controller
public class MyController {

	@InitBinder
	protected void initBinder(WebDataBinder binder) {
		binder.addValidators(new FooValidator());
	}
}

@Controller
class MyController {

	@InitBinder
	protected fun initBinder(binder: WebDataBinder) {
		binder.addValidators(FooValidator())
	}
}

If you need to have a LocalValidatorFactoryBean injected somewhere, create a bean and mark it with @Primary in order to avoid conflict with the one declared in the MVC configuration.