In this chapter, we explored Spring and its modules, dependencies, and use of functions. We attempted to cover all the essential information that will be required for the rest of this book. We looked at the steady and solid architecture of Spring Framework with Core, Information Access, Web, AOP, Instrumentation, and Test. Furthermore, we figured out the life cycle of a bean and how to design beans in three different ways. We found out about the depth of bean configurations, and we learned about the use of beans in XML, annotation, and code. Now we know how to inject the dependencies into the tasks.

We explored two noteworthy frameworks: Spring MVC and SpringBoot. We'll now be able to make an MVC-based venture with its dependencies and modules. In addition, we learned out about the use of SpringBoot and created a web application that uses Boot, allowing us to make a web page without an HTML file. We also explored the contrasts between Spring MVC and SpringBoot. You can now create a Spring project in the Kotlin language. 

In the next chapter, we'll learn about the required Android and Spring modules to build a client application on the Android platform.