Summary

This chapter took a deep look at the foundational concepts and components of connection pools with a focus on increasing the performance, resilience, reliability, and scalability of our Java applications. We also explored implementation strategies and best practices for optimizing our use of connection pools. Specifically, we highlighted how connection pools work, their advantages, and related challenges for developers. We reviewed the features of multiple connection pool libraries and selected the HikariCP library for our code examples. You should have a firm understanding of connection pools, why we should use them, and how to create, monitor, and fine-tune them.

In the next chapter, we will look at the Hypertext Transfer Protocol (HTTP). This protocol is used to transmit data and is the backbone of data communication over the web. Our focus will be on how to leverage HTTP for our Java applications to communicate with web browsers and web servers. The chapter aims to help...