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…
Introduction: In Java, the String class is a part of the java.lang package and is used to represent sequences of characters. Strings are immutable, which means their values cannot be changed once they are created. In this tutorial, we'll explore various operations and methods available in the String class. 1. Creating Strings: Strings in…
Inversion of Control (IoC) is a design principle where the control flow of a program is inverted: instead of the application controlling the flow of execution, it delegates control to an external framework or container. This helps in achieving loose coupling and better modularization of code. In this tutorial, we'll explore the concept of…
Semantic Versioning (SemVer) is a versioning scheme designed to bring clarity and meaning to version numbers in software development. It provides a systematic way to convey information about changes in a release, helping developers and users understand the impact of updating to a new version. Basics of SemVer: SemVer version numbers follow the format:…
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…