Goodbye to @Autowired: Completely Removed it From My Spring Boot Code

"For years, @Autowired was one of the most recognizable annotations in the Spring ecosystem. Frustration andConfusion moving from field injection to constructor injection. But in modern Spring development, especially with Spring Boot and newer practices, you'll often hear: In fact, many teams and guides have removed @Autowired completely from their codebases. Let's explore why. 🎉 If you are not a medium member then Click here to read free"

"2️⃣What is @Autowired, and Why did we even use It? Back in the Spring 2.x and 3.x days, @Autowired was the go-to way of wiring up dependencies. You could slap it almost anywhere: On fields → the shortcut every lazy dev secretly loved 🍕 On constructors → the cleanest and most reliable approach 💪 On setter methods: @Componentpublic class OrderService {@Autowiredprivate PaymentService paymentService;public void processOrder() {..."

@Autowired historically provided a simple way to wire dependencies in Spring and could be applied to fields, constructors, or setter methods. Field injection offered quick wiring but encouraged less testable, less explicit designs. Constructor injection yields clearer, immutable dependencies and improves reliability and testability. Spring Boot and newer conventions support implicit injection via constructors, allowing teams to omit explicit @Autowired annotations. Many teams have removed @Autowired from codebases in favor of explicit constructors, despite initial frustration and confusion when migrating from field injection to constructor-based patterns. Example code shows @Autowired on a PaymentService inside an OrderService component.

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