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Spring Boot Annotations — Complete Guide with Real-World Examples
Hey there! Spring Boot annotations are like magic wands that make your development life easier. They cut down on all…
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Spring Boot Exception Handling – 5 Tips for Clean and Reliable APIs
This guide explains how to build reliable Spring Boot exception handling for your APIs.” What Is Spring Boot Exception Handling? When you…
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Complete Spring Boot Kafka Consumer and Publisher Guide with Docker
In this guide, we’ll walk through a complete Spring Boot Kafka Consumer and Publisher example… 🔧 Kafka Setup using Docker Compose First,…
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Spring Boot Schedulers Job – Real-World Examples & Guide
In many applications, we need to run background jobs — like sending reminders, syncing data, or cleaning logs. Spring Boot…
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Spring Boot Interceptor: Understanding with Real-Time Example
Introduction A spring boot interceptor is a component that allows you to intercept incoming HTTP requests before they reach the controller and optionally…
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Spring Boot Return JSON and XML – Interview Q&A with Real Code Example
Spring Boot return JSON and XML from the same endpoint is a common requirement when building REST APIs. In this tutorial,…
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Serialization vs Externalization in Java – Explained with Interview Q&A Style
Let’s say you’re in a Java interview and the topic of object persistence comes up. Here’s how an interactive interview-style…
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Resolving “Failed to Configure a DataSource” Error in Spring Boot
Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured Problem: If you’re…
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@Qualifier in Spring Boot: Handling Multiple Implementations
In Spring Boot, when you have multiple implementations of an interface, the framework might get confused about which implementation to…
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Spring Boot Cucumber Component Test – Complete Tutorial
Spring Boot Cucumber Component Test is a powerful way to validate your REST endpoints using behavior-driven development (BDD). In this post,…
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