In this chapter, we got a clear idea of the Spring MVC module and learned about different configuration methods. We also learned about the Spring asynchronous processing concept, with CompletableFeature implementation. After that, we went through the Spring Security module and learned about configuration. We also understood the authentication part of Spring Security with the stateless API. Then, we went through the monitoring part of Tomcat with JMX. At the end, we looked at Spring MVC performance improvements.

In the next chapter, we will learn about Spring database interaction. We will start with Spring JDBC configuration with optimal database design and configuration. Then, we will go through the optimal connection pooling configuration. We will also cover the concept of @Transactional for performance improvement. Finally, we will go through database design best practices.