Spring Boot

🧠 AOP in Spring Boot

What Is AOP? AOP (Aspect-Oriented Programming) is a programming paradigm that helps separate cross-cutting concerns — logic that’s common across multiple parts of an application, like: Logging Security Transactions Performance...

🔒 Step-by-Step HTTPS Request Flow in Spring Boot

1. 🔐 HTTPS Client Request A browser or REST client (like Postman) sends a secure HTTPS request:https://yourdomain.com/api/data The request is encrypted using TLS/SSL. 2. 🌐 SSL Termination (Optional) In production, SSL...

@RequestMapping Vs @GetMapping

📌 1. @RequestMapping ✅ General-purpose annotation to map any HTTP method (GET, POST, etc.) @RequestMapping(value = "/hello", method = RequestMethod.GET)public String sayHello() {    return "Hello!";} 📋 Syntax: @RequestMapping(value =...

@Controller Vs @RestController

🎭 @Controller ✅ Purpose: Used to serve web pages (like JSP/Thymeleaf/HTML) — it returns views. 📦 Common Use Case: @Controllerpublic class ViewController {    @GetMapping("/hello")    public String hello(Model model)...

🚀 What is a Spring Boot Starter?

A Spring Boot Starter is a pre-configured set of libraries that provides the functionality for a particular use case — like web apps, data access, security, etc. ✅ Starters follow the...

📦 What is MultipartFile?

MultipartFile is an interface provided by Spring to represent an uploaded file received in a multipart/form-data request. It allows you to read, store, or manipulate uploaded files in memory or...