Ditch Field Injection in Spring Boot for Constructor Injection

What is @RestController in Spring Boot? 🚀 It is a combination of: @Controller + @ResponseBody 👉 It directly returns JSON response Example: @RestController public class Test {   @GetMapping("/hello")   public String hello() {     return "Hello";   } } Simple, clean, and perfect for APIs. Are you using Spring Boot in your project? #SpringBoot #Java #BackendDeveloper

🚀 Day 8 — Spring Bean Lifecycle (Complete Flow 🔥) Today I learned how Spring creates, manages, and destroys objects (Beans) 👇 💡 Bean Lifecycle (Simple Flow): 👉 Create Bean 👉 Inject Dependencies 👉 Initialize Bean 👉 Use Bean 👉 Destroy Bean ⚡ Important Annotations: @PostConstruct → runs after bean creation @PreDestroy → runs before bean destruction 🔍 What Spring does internally? 👉 IoC Container: Creates object Injects dependencies Manages lifecycle 💡 One simple line: 👉 Spring controls the entire life of an object 💬 Did you know Spring handles object destruction too? Day 8 done ✅ #Spring #Java #BackendDevelopment #LearningInPublic #30DaysOfCode #SpringBoot #Developers

🌱 Behind every powerful Spring Boot application lies a strong foundation — the Spring Core Frameworks. Most developers jump directly into Spring Boot, but understanding the core modules gives you a real edge in backend development. 🔹 Spring Core – IoC & Dependency Injection🔹 Spring Beans – Object lifecycle management🔹 Spring AOP – Logging, security, transactions🔹 Spring Context – Application configuration & events🔹 SpEL – Dynamic expressions & querying🔹 Spring Instrumentation – Class loading & monitoring Mastering these concepts helps you write cleaner code, build scalable systems, and crack interviews with confidence 🚀Strong applications are built on strong foundations. Which Spring module helped you the most in your journey? 👇 .... .... .... #SpringFramework #SpringBoot #Java #BackendDevelopment #SoftwareEngineering #Developers #Programming #TechLearning #JavaDeveloper #CodingJourney #Microservices #SystemDesign #LearnJava #SpringCore #TechCareer

What’s your go-to approach for dynamic search in Spring Boot? 🤔 When it comes to JPA Specifications vs @Query most developers get this decision wrong. ❌ Here’s how to actually choose the right one 👇 #SpringBoot #Java #SoftwareEngineering

The ultimate Java Backend Cheat Sheet. 📄🔥 Everything you need to master: 🔹 Core & Advanced Java 🔹 Spring Boot & REST APIs 🔹 SQL & Performance Tuning 🔹 Testing (JUnit/Mockito) 🔹 Git & GitHub Download/Save the document below! Found this helpful? 👉 Follow Surya Mahesh Kolisetty for more. 👉 Repost for your fellow devs. #SoftwareDevelopment #Backend #Java #LearningResources #TechTips #Developers #cfbr #connections

Day 1: Started my Spring Framework journey today. Here’s what I learned: • Spring helps build scalable Java applications • It reduces boilerplate code • Core concept: Inversion of Control (IoC) • Spring manages objects (Beans) instead of us Understanding this foundation is important before moving to Spring Boot. Frontlines EduTech (FLM) #Java #SpringFramework #BackendDevelopment #Java

Most people use Spring Boot. But very few understand what actually happens when the application starts While going deeper into it, a few things started making more sense How the application context is created What SpringBootApplication really triggers How the bean lifecycle actually works Why proxies are used for things like Transactional And how self invocation can silently break things It is easy to write Spring code Understanding what happens inside is different Still learning and connecting the dots What part of Spring feels confusing to you #Java #SpringBoot #BackendDevelopment #SoftwareEngineering #JavaDeveloper #SystemDesign #Placements

💡 What is a REST API? (Simple explanation) As I’m learning Spring Boot, I’ve been working a lot with APIs. Here’s how I understand it: A REST API is basically how different applications talk to each other. Example: When you open an app and see data → it usually comes from an API. You send a request → server responds with data. That’s it. Simple nerh… but powerful. #SoftwareDevelopment #BackendDevelopment #Java #SpringBoot

Spring Boot HandlerExceptionResolver — Advanced error handling 🔥 Most devs use @ControllerAdvice… but there’s a deeper layer 👇 👉 HandlerExceptionResolver It gives full control over: ✔ Exception handling ✔ HTTP response ✔ Error mapping 💡 Why use it? ✔ Fine-grained control ✔ Custom framework-level handling ⚠️ Use case: When @ExceptionHandler is not enough 👉 Example: Handle all exceptions globally with custom logic This is how frameworks are built internally 💯 #SpringBoot #Java #ExceptionHandling

🚀 What happens inside Spring Framework when your application starts? From bootstrapping to dependency injection, here’s a complete step-by-step flow of how Spring works internally. Understanding this flow helps developers write better and optimized applications. #Java #SpringBoot #BackendDevelopment #SoftwareEngineering