Resolving NoUniqueBeanDefinitionException in Spring

Показать описание

Resolving the 'NoUniqueBeanDefinitionException' in Spring.

The default dependency injection behavior of Spring is to Autowire by type, and if more than one bean of a specific type is in the Spring Context, Spring may throw a NoUniqueBeanDefinitionException. In this video, I show you two different ways to resolve the NoUniqueBeanDefinitionException exception in Spring.

Рекомендации по теме

Комментарии

Thank you. I had my very first Spring class today. I wanted to do something that had me in the situation of having multiple implementations to an interface and that part wasn't covered (yet?).
So I did my very own demo of this for my own comprehension of Spring.
I also used a version using the Resource annotation. We were taught that one today but passing the class identifier as String in its name property kinda like Qualifier. The good thing is there is another type property I can use instead to avoid magic strings. It is precisely what I don't like about Qualifier. I shall find a way to extract and format the class name in a way that is not too verbose but I could not succeed for it also expects that string to be a constant.
Also I noticed that Resource is fine on its own. Autowired is mandatory with Qualifier.

This video was very helpful.

uchitesting

What if the 2 Bean names are the same (can happen if they're in different packages)?

atech

Resolving NoUniqueBeanDefinitionException in Spring

Resolving NoUniqueBeanDefinitionException in Spring

Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean

Spring NoSuchBeanDefinationException issue: how to fix Error creating bean & troubleshooting

#Beancreationexception #spring How to resolve BeanCreationException in Spring Project ?

Spring Autowired NoBeanDefException

Spring Framework Java - Аннотация однозначности (@Qualifier, NoUniqueBeanDefinitionException)...

Spring Autowired BeanCreationException

How to resolve -@org.springframework.beans.factory.annotation.Autowired(required=true)

How to Fix UnsatisfiedDependencyException: Error Creating Bean with Name in Spring Boot

BeanCreationException Error creating bean with name entityManagerFactory defined in class path resou

How To Resolve -- @org.springframework.beans.factory.annotation.Autowired(required=true)|Spring Boot

How to resolve-- @org.springframework.beans.factory.annotation.Autowired(required=true)

{@org.springframework.beans.factory.annotation.Autowired(required=true)}

The following annotations: - @org.springframework.beans.factory.annotation.Autowired(required=true)

Spring Interview Questions | With @Autowired what will happen if more than one bean is available?

How to resolve unsatisfied dependency exception?

How to resolve -'@org.springframework.web.client.RestTemplate' | required a bean of type

Constructor Dependency Injection ambiguity 2

Java Spring - Constructor Arguments with Bean Reference - Session 6

Error Lecture 40 - BeanCreationException

Spring Boot Error: Repository Field Requires 'entityManagerFactory' Bean - Fix Explained

No beans of 'AuditEventRepository' type found, Part 2

Mastering Spring Boot: Autowiring an Interface with Multiple Implementations

What will happen in byType Auto wiring mode, multiple bean of one type is there?