What is Dependency Injection and Inversion of Control?

Inversion of Control is a way to inject dependent objects into your application. For an overview of of Inversion of Control containers and the Dependency Injection pattern, please see Martin Fowler's article.

Spring

By default, the framework uses Spring for dependency injection. You may also use Spring to inject objects into your own applications. Besides Spring, there are other containers that you can use, such as Pico.

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