Flyway is a database migration tool that helps manage database changes in a structured and version-controlled way. Spring Boot, on the other hand, is a popular framework for building Java-based, production-grade applications. Prerequisites: Basic knowledge of Spring Boot. Familiarity with relational databases (e.g., MySQL, PostgreSQL). Step 1: Create a Spring Boot Project You can…
Spring Security in Spring Boot 3 provides a robust security framework that can be easily integrated into your application, even without using a custom login page or a database. This guide will walk you through the process of setting up Spring Security in a Spring Boot 3 application with in-memory authentication, using default login…
Configuring a Spring Cloud Config Server to read configuration from a GitHub repository, using @RefreshScope to refresh beans dynamically, and leveraging Spring Boot Actuator for monitoring and refreshing can be a powerful combination. Let's go through a step-by-step tutorial. Step 1: Setup GitHub Repository for Configuration Create a GitHub Repository: Create a new GitHub…
Spring Cloud Eureka is a service registry that allows microservices to register themselves and discover other services in the system. Prerequisites: Java Development Kit (JDK) installed (at least version 8) Maven installed IDE (such as IntelliJ or Eclipse) Basic understanding of Spring Boot and microservices architecture https://youtu.be/SxOnIO8G7Gc Step 1: Create a Spring Cloud Eureka…
Prerequisites: Java Development Kit (JDK) 8 or later installed Maven installed Spring Boot IDE or any preferred IDE Step 1: Create Eureka Server Create a new Spring Boot project with the following dependencies: Eureka Server Open the src/main/resources/application.properties file and configure the Eureka server: spring.application.name=eureka-server server.port=8761 eureka.client.register-with-eureka=false eureka.client.fetch-registry=false Add the @EnableEurekaServer annotation to your…
We'll create two simple microservices and use Zuul as an API gateway to route requests, and Eureka for service discovery. I'll also demonstrate how to implement pre-filters, post-filters, and error-filters in Zuul. Prerequisites: JDK 8 or later installed Maven installed Basic knowledge of Spring Boot Step 1: Create Eureka Server Create a new Spring…
The @Primary annotation is used to give a higher preference to a specific bean when multiple beans of the same type exist. This is useful when you have multiple implementations of an interface or multiple beans of the same type, and you want to indicate a default or primary choice. 1. Dependency Setup Make…
1. Introduction: In Spring Boot, the @ConditionalOn annotation is used to conditionally enable or disable the creation of a bean based on certain conditions. Combined with the @Bean annotation, it allows for dynamic bean creation depending on the runtime environment or configuration. 2. Basic @ConditionalOnProperty: The @ConditionalOnProperty annotation is one of the most commonly…
Step 1: Set up a Spring Boot Project Start by creating a new Spring Boot project using Spring Initializr or your preferred IDE. Include the dependencies for "Spring Web" and "Spring Data MongoDB." Step 2: Configure MongoDB Connection Open your application.properties file and configure the MongoDB connection settings: spring.data.mongodb.host=localhost spring.data.mongodb.port=27017 spring.data.mongodb.database=mydatabase Step 3: Create…
This tutorial assumes that you have a basic understanding of Java and Spring Boot. Step 1: Set Up a Spring Boot Project You can use Spring Initializr to generate a basic Spring Boot project. Visit https://start.spring.io/ and select the following options: Project: Maven Project Language: Java Spring Boot: Choose a version Packaging: Jar or…