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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…