Introduction In this tutorial, we will guide you through the process of integrating Dynatrace, a powerful application performance monitoring (APM) tool, with a Spring Boot application. Dynatrace provides real-time insights into the performance and behavior of your applications, helping you identify and resolve issues quickly. Prerequisites Before you begin, ensure you have the following:…
1. Overview: The Factory Pattern is a creational design pattern that provides an interface for creating instances of a class but allows subclasses to alter the type of objects that will be created. This pattern promotes loose coupling between classes, making it easier to extend and maintain the code. 2. Example Scenario: Imagine a…
Introduction Jenkins Pipeline is a suite of plugins that supports implementing and integrating continuous delivery and continuous integration (CI/CD) pipelines. It allows you to define your build process using a Domain Specific Language (DSL) called Groovy. In this tutorial, we'll cover the basics of Jenkins Pipeline using Groovy with practical examples. Prerequisites Jenkins installed…
Introduction Spring Boot is a popular framework for building Java-based, production-grade applications. It simplifies the development process by providing default configurations, allowing developers to focus on writing business logic. jOOQ (Java Object Oriented Querying) is a library that simplifies database access in Java applications by providing a fluent API for building SQL queries. This…
Introduction OpenSSL is a versatile open-source toolkit that provides support for Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols. It is widely used for cryptographic functions, including generating and managing certificates, creating secure connections, and encrypting data. In this tutorial, we'll explore some common OpenSSL commands and use cases with practical examples.…
Introduction Keytool is a command-line utility included with the Java Development Kit (JDK) that allows users to manage cryptographic keys, X.509 certificates, and certificate signing requests. The cacerts file is the default keystore file containing trusted certificate authorities (CAs) in Java. In this tutorial, we'll cover the basics of using Keytool to manage certificates…
Introduction: Spring Boot Shell is a powerful and extensible command-line interface (CLI) tool that enhances the development experience for Spring Boot applications. It provides a convenient way to interact with your Spring Boot projects, allowing you to execute commands, explore configurations, and manage application components efficiently. In this guide, we will walk through the…
Introduction Hexagonal Architecture, also known as Ports and Adapters architecture or simply the Onion Architecture, is a design pattern that aims to create a loosely coupled and easily maintainable software system. The core idea is to separate the business logic from external concerns, such as databases, user interfaces, and external services. In this tutorial,…
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…