Book Image

Building Microservices with Spring

By : Dinesh Rajput, Rajesh R V
Book Image

Building Microservices with Spring

By: Dinesh Rajput, Rajesh R V

Overview of this book

Getting Started with Spring Microservices begins with an overview of the Spring Framework 5.0, its design patterns, and its guidelines that enable you to implement responsive microservices at scale. You will learn how to use GoF patterns in application design. You will understand the dependency injection pattern, which is the main principle behind the decoupling process of the Spring Framework and makes it easier to manage your code. Then, you will learn how to use proxy patterns in aspect-oriented programming and remoting. Moving on, you will understand the JDBC template patterns and their use in abstracting database access. After understanding the basics, you will move on to more advanced topics, such as reactive streams and concurrency. Written to the latest specifications of Spring that focuses on Reactive Programming, the Learning Path teaches you how to build modern, internet-scale Java applications in no time. Next, you will understand how Spring Boot is used to deploying serverless autonomous services by removing the need to have a heavyweight application server. You’ll also explore ways to deploy your microservices to Docker and managing them with Mesos. By the end of this Learning Path, you will have the clarity and confidence for implementing microservices using Spring Framework. This Learning Path includes content from the following Packt products: • Spring 5 Microservices by Rajesh R V • Spring 5 Design Patterns by Dinesh Rajput
Table of Contents (22 chapters)
Title Page
About Packt

Chapter 5. Accessing a Database with Spring and JDBC Template Patterns

In earlier chapters, you learned about Spring core modules like the Spring IoC container, the DI pattern, container life cycle, and the used design patterns. Also you have seen how Spring makes magic using AOP. Now is the right time to move into the battlefield of real Spring applications with persisting data. Do you remember your first application during college days where you dealt with database access? That time, you probably, had to write boring boilerplate code to load database drivers, initialize your data-access framework, open connections, handle various exceptions, and to close connections. You also had to be very careful about that code. If anything went wrong, you would not have been able to make a database connection in your application, even though you would've invested a lot of time in such boring code, apart from writing the actual SQL and business code.

Because we always try to make things better and simpler...