Difference between @component & @bean annotations in Spring boot | Interview Question | Code Decode

In this video of code decode we have explained @bean vs @component difference in spring boot

Aspect
@Component
@Bean
Purpose/Role
Class level Spring component annotation.
Method-level annotation for creating beans.
Typical Use Case
Represents a general-purpose bean.
Used to explicitly declare individual beans.
Creation of Instances
Automatically created and managed by Spring.
Explicitly defined in a configuration class.
Component Scanning
Detected and registered during component scanning.
Dependency Injection
Can be injected into other components through Spring's IoC container.
Can be injected into other components; the method returning the bean is invoked.

Lifecycle Management
Spring manages the complete lifecycle of components.
Spring manages the lifecycle of beans, but individual methods in a @Configuration class are not managed by Spring.
Dependencies
Simpler to use for straightforward scenarios without intricate configurations
Well-suited for handling complex dependencies and conditional bean creation(using @Conditional)
Customization
Provides less explicit control, suitable for default configurations
Offers fine-grained control over bean instantiation and configuration
Naming Conventions
Class name is used as the default bean name (can be customized with @Component("customName"))
Method name determines the bean name (unless specified explicitly)

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[akashshaw]

The main difference is with @Bean you are able to instantiate beans for third party library objects where you do not have the access to the source code to add @Component annotation. for example PasswordEncoder.

@Bean annotation provides more control over how you want to create the bean.

[GreenAspirant]

Ma'am please continue doing such videos.... thanks for covering whole concept in depth

[surajupadhyay]

Your videos are really really very helpful 🎉

[bluesibilings]

It was very clear and easy to remember also.Glad am the first person to comment 😊

[maheshh]

Its better to show writing full code flow to understand littlest bit clearly

[killingmachinelp]

I think conditional can be used with component or service annotations.