Field-Based DI in Spring

Field-Based DI

For Field-Based DI, we can inject the dependencies by marking them with an @Autowired annotation。
If there’s no constructor or setter method to inject the dependencies, the container will use reflection to inject dependencies.

# Field-Based DI
public class Store {
    
    
    @Autowired
    private Item item; 
}

# We can also achieve this using XML configuration.

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参考：
Intro to Inversion of Control and Dependency Injection with Spring