In the context of Spring Boot, an opinionated approach refers to a set of design choices and conventions that are built into the framework. These choices and conventions are intended to make it easier for developers to build and deploy Spring-based applications, by providing a default way of doing things that is simple, reliable, and consistent.
Here are some examples of the opinionated approach in Spring Boot:
Auto-Configuration: Spring Boot uses auto-configuration to automatically configure various components of an application. This means that developers don’t need to write a lot of configuration code in order to get their application up and running. Instead, Spring Boot uses sensible defaults and a classpath-based approach to configure the application.
Convention over Configuration: Spring Boot follows the convention over configuration principle, which means that it provides sensible defaults and naming conventions that allow developers to minimize the amount of configuration code they need to write. For example, Spring Boot provides a default directory structure for organizing code and resources, and uses naming conventions to automatically wire together components.
Opinionated Dependencies: Spring Boot includes a set of opinionated dependencies that are commonly used in Spring-based applications. These dependencies are pre-configured and work well together, which makes it easier for developers to get started with Spring Boot. For example, Spring Boot includes libraries for connecting to databases, handling web requests, and processing JSON data.
Embedded Servers: Spring Boot includes embedded servers like Tomcat, Jetty, and Undertow. These servers are configured by default, which means that developers don’t need to spend time configuring and managing a separate server environment. This makes it easier to get started with Spring Boot, since developers can simply run their application as a standalone JAR file.
Overall, the opinionated approach in Spring Boot is designed to simplify the process of building and deploying Spring-based applications. By providing sensible defaults, naming conventions, and pre-configured dependencies, Spring Boot allows developers to focus on building their application’s core functionality, rather than spending time on boilerplate code and configuration.