IMPORTANT: This information is no longer actual. Apparently it was just a bug in Spring Initializr tool and Eureka is available with Spring Boot version 3.1.0 just fine. If you’re using Spring Initializr tool for creating Spring Boot projects, you might have noticed a change. In Spring Boot version 3.1.0, the tool no longer allows…
Read More Eureka Discovery with Spring Boot 3.1.+This tutorial will guide you through the process of running Unit Tests and Integration Tests separately in a Maven-based Spring Boot application. We will use the JUnit Tag feature to group our test cases and separate Unit Tests from Integration Tests. To learn more, check out the Test Java code tutorials page. Create your tests…
Read More Running Unit Tests and Integration Tests Separately in Spring BootIn this tutorial, you will learn how to use the @Tag annotation in JUnit 5 for organizing and running your unit tests. By the end of this tutorial, you’ll have a solid understanding of the @Tag annotation, its benefits, and how to apply it effectively in your own test cases. Let’s dive in! What is…
Read More @Tag Annotation: Organizing and Running Tests in JUnit 5If you are preparing for a Spring Boot interview or simply looking to enhance your knowledge of this powerful Java framework, you’ve come to the right place. In this page, we will delve into a collection of commonly asked interview questions related to Spring Boot. From fundamental concepts to advanced topics, we will cover essential…
Read More Essential Spring Boot Interview QuestionsAre you preparing for an upcoming interview that focuses on the Spring Framework? Look no further! This page is designed to equip you with a comprehensive set of Spring Framework interview questions and their insightful answers. Whether you are a seasoned developer or just starting your journey with Spring, these questions will help you deepen…
Read More Essential Spring Framework Interview QuestionsWelcome, and thank you for choosing this tutorial! If you’re an absolute beginner looking to learn about integration testing for Spring Boot applications with a MySQL database server, then you’re in the right place. As you proceed through this tutorial, remember that everyone was once a beginner, and the only silly question is the one…
Read More Integration Testing with Spring Boot, MySQL and TestcontainersIn this tutorial, you will learn about the difference between two Spring Boot dependencies – Spring Boot Actuator and Spring Boot Starter Actuator. If you’re new to Spring Boot, these terms may sound confusing, but don’t worry, by the end of this tutorial, you’ll understand the difference between them. Spring Boot is a popular framework…
Read More Spring Boot Actuator vs Spring Boot Starter ActuatorIn this tutorial you will learn how to enable and how to view Spring Cloud API Gateway Routes using Spring Boot Actuator. Developers use Actuator to enable API Gateway routes in order to keep track of the routes being used in their application. By exposing these routes through Actuator endpoints, developers can get valuable information…
Read More Viewing Spring Cloud API Gateway Routes with Spring Boot ActuatorSpring Boot Actuator is a useful feature that provides developers with a set of tools to monitor and manage their applications. However, some of the actuator endpoints are sensitive and can potentially expose sensitive information about your application. In this article, we’ll explore different ways to secure these endpoints to ensure your application is protected.…
Read More Securing Spring Boot Actuator Endpoints: Best PracticesIn this tutorial, I will explain in detail how to secure sensitive Spring Boot Actuator Endpoints using Spring Boot version 3. This tutorial is intended for beginners who want to learn how to monitor and manage their Spring Boot applications using Actuator. Spring Boot Actuator is a sub-module of Spring Boot that provides production-ready features…
Read More How to Secure Spring Boot Actuator Endpoints with Basic AuthenticationIn a microservices architecture, it is common to have multiple services communicating with each other over the network. This distributed nature of the architecture can make it challenging to diagnose and debug issues when they arise. To address this problem, developers often use monitoring(Micrometer) and tracing tools(Zipkin) to track the flow of requests between microservices.…
Read More Micrometer and Zipkin: How to Trace HTTP Requests in Spring Boot 3In this tutorial, you will be introduced to the process of adding JSON Web Token (JWT) support to your Java application. You will also learn how to add and validate custom JWT Claims using the io.jsonwebtoken library. The JWT tokens generated in this process will be signed with a SecretKeySpec, making them secure and tamper-proof.…
Read More Generate JWT. Add and Validate Custom Claims.The RestTemplate class within the Spring Framework is a simple HTTP client that enables your code to send HTTP requests and handle HTTP responses. This tutorial will demonstrate how to use RestTemplate to send various types of HTTP requests. Create Spring Boot App RestTemplate is a component of the Spring Framework and is typically utilized…
Read More Spring RestTemplate TutorialOpenAPI (formerly known as Swagger) is a specification for building and documenting RESTful APIs. It allows developers to describe their API operations, inputs, outputs, and other aspects in a structured and machine-readable format. This documentation can then be used by developers and users to understand and interact with the API. In Spring Boot applications, OpenAPI…
Read More Enable OpenAPI 3(Swagger) in Spring Boot 3In this tutorial, you’ll learn how to use the @PutMapping annotation in your RESTful web services app to handle HTTP PUT requests with a JSON or XML payload. This allows you to update user details, for example. Here’s an example CURL command to send an HTTP PUT request with JSON data containing user details: HTTP…
Read More @PutMapping in Spring Boot REST