In this chapter, we gained a clear understanding of the core features of the Spring Framework. We also covered different kinds of Spring modules. After that, we went through different types of Spring projects in the Spring Framework. We also understood the mechanisms of a Spring IoC container. At the end of the chapter, we looked at the new features and enhancements introduced in Spring 5.0.

In the next chapter, we will understand the concept of DI in detail. We will also cover the different types of configurations using DI, including performance assessment. And finally, we will go through the pitfalls of DI.