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Spring Boot Kafka Publisher and Consumer Example with Docker
Apache Kafka is widely used for building real-time data pipelines. In this post, we’ll build a simple Kafka-based communication between…
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Spring Boot Scheduled Tasks with Real-World Examples
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
🤔 What is an Interceptor in Spring Boot? In Spring Boot, an interceptor is a component that allows you to intercept incoming…
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Spring Boot Interview – Return JSON and XML from the Same Endpoint (Interactive Q&A)
Let’s simulate a Java/Spring Boot interview where the topic is producing both JSON and XML responses from a REST endpoint. Here’s how…
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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 Example
This article walks through setting up Cucumber to perform component testing for a REST controller in Spring Boot. In this…
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@Profile in Spring Boot
Where Can We Apply the @Profile Annotation? The `@Profile` annotation in Spring Boot can be applied in several places to…
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Fixing No Qualifying Bean of Type Found Error in Spring Boot
Learn how to troubleshoot the ‘No Qualifying Bean of Type Found’ error in Spring Boot. This guide covers common causes…
Rohit Yadav
A passionate software developer who loves exploring and writing about Java, Spring Boot, Docker, and all things backend. This blog is where I share tutorials, tips, and real-world solutions to help fellow developers level up their skills
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