Tag: springboot

Spring Boot Testcontainers Example

In this tutorial, we will create a sample Spring Boot API that uses MongoDB as its database and then demonstrate how to use Testcontainers to write integration tests for the API. Testcontainers is a powerful Java library that allows you to spin up and manage Docker containers during your test runs, making it ideal for testing applications that rely on...

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Spring Boot @ConditionalOnProperty Example

Spring Boot provides a powerful and flexible way to configure your application using properties. These properties can be defined in various ways, including in application.properties or application.yml files, environment variables, or even through command-line arguments. In some cases, you may want certain parts of your application to be conditionally enabled or disabled based on these properties. This is where @ConditionalOnProperty...

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@CompoundIndexes Annotation in Spring Data MongoDB Package

In the modern web applications, efficient database management is a cornerstone of success. MongoDB, a prominent NoSQL database, offers unparalleled flexibility and scalability for handling intricate data structures. Spring Data MongoDB, an integral component of the Spring Framework, streamlines the interaction between Java applications and MongoDB databases. Delving deeper into the toolbox that Spring Data MongoDB provides, we encounter the...

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Exploring the Power of @Indexed Annotation in Spring Data MongoDB Package

MongoDB, a popular NoSQL database, offers flexibility and scalability for handling complex data structures. Spring Data MongoDB, an extension of the Spring Framework, simplifies the interaction between Java applications and MongoDB databases. One of the key features that Spring Data MongoDB provides is the @Indexed annotation, located within the org.springframework.data.mongodb.core.index package. In this comprehensive guide, we will delve into the...

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Understanding the Difference Between @MockBean and @Mock

In this article, we’ll delve into two popular annotations used for creating mock objects: @MockBean and @Mock. We’ll explore their differences, use cases, and provide real-world examples to help you grasp their significance in achieving effective unit testing. What are @MockBean and @Mock? @MockBean and @Mock are annotations that allow developers to create mock objects for unit testing purposes. These...

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@Controller in Spring Boot: Your Guide to Effective Web Development

In the world of Spring Boot web development, the “@Controller” annotation stands as a pivotal element that plays a significant role in shaping the functionality and structure of your application. As an integral part of the Spring Framework, the @Controller annotation empowers developers to create robust and efficient web applications. In this blog post, we’ll delve into the intricacies of...

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Event Driven Microservices: Outbox Pattern with Spring Boot

In microservices architectures, maintaining data consistency and ensuring reliable communication between services is critical. The Outbox Pattern is an event-driven approach that addresses these challenges by introducing an additional layer for handling events. In this tutorial, we will delve into the Outbox Pattern, explaining its principles and benefits, and guide you through implementing it with a practical Spring Boot example...

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Database-Based Authentication in Spring Security: A Step-by-Step Tutorial

In this tutorial, we will explore how to implement database-based authentication using Spring Security. We’ll create a simple web application with user registration, login, and access control. Table of Content: Setting Up the Project Let’s start by setting up a new Spring Boot project. You can do this manually or use Spring Boot Initializr to generate the project structure. Ensure...

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How to Audit JPA Entities Using Envers in a Spring Boot Application

In this tutorial, we will walk through the process of setting up auditing for JPA entities using Envers in a Spring Boot application. We will create an example Spring Boot project, define JPA entities, configure Hibernate Envers, and demonstrate how to retrieve audit information from the database. In modern applications, tracking data changes is crucial, especially in critical systems handling...

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Joining Unrelated Entities with JPA and Hibernate in Spring Boot

In this tutorial, we will explore how to join unrelated entities using JPA (Java Persistence API) and Hibernate in a Spring Boot application. The process of joining unrelated entities allows us to retrieve data from different tables that have no direct association using a single database query. By the end of this tutorial, you will have a better understanding of...

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