I have a entity class called Customer, I am using this entity object in another class to set the data. When I use this object below like
@Autowired
Customer customer
Spring is complaining that please configure the bean in your classes.
Can we use auto wiring with entity objects?
You can only autowire only those beans whose life-cycle are managed by Spring IoC container.
These beans are defined in xml form with </bean> tag, or with some special annotations like @Bean, @Component, @Service, @Repository etc.
On the other hand,
in simple terms, entities are some java objects that you will need to create, update by yourself according to your business logic and save/update/remove them in/from DB. Their life-cycle cannot be managed by Spring IoC container.
So, you should never feel like you need to autowire an entity if you are doing it right!
In fact, Spring support @Autowire only for Spring Beans. A java class becomes Spring Bean only when it is created by Spring, otherwise it is not.
A workaround might be to annotate your class with @Configurable but you would have to use AspectJ
Please look in the Spring documentations on how to use @Configurable
Also, I wonder why you would autowire an entity class ?
I would warn you not to mix Spring Bean and JPA entities in one class/usecase because:
If you mean JPAs @Entity-annotation, Spring is simply telling you, that there isn't a bean in its context. On startup/runtime classes in the application will be scanned and each class annotated with spring annotations like @Component, @Service etc. will be instantiated as beans and put into a global context (Spring applicationcontext). This context is then used to lookup and inject those beans into other beans when @Autowired is found during scanning.
Opposed to this, @Entity is used during the creation of the Persistence-Context of JPA (as far as I remember) which isn't aware of Spring and it's context.
Most of the solutions to make both contexts aware of each other a mostly a little bit hacky.