What is Spring Batch? Spring Batch is a lightweight, broad batch framework that builds upon the characteristics of the Spring Framework that enables the development of robust batch applications, which plays a vital role in the daily operations of enterprise systems. Spring Batch provides many reusable functions that are necessary for processing records with large…
Read More Spring Batch TutorialJUnit is a popular unit testing framework for Java. In JUnit 5, assertions are used to check the expected outcome of a test case. Assertion messages are used to provide more information about the failed test and help in debugging. The Lazy Assertion Message feature in JUnit 5 allows you to specify the assertion message…
Read More JUnit 5 Lazy Assertion Message TutorialRunning a Spring Boot application in a Docker container is a great way to package and deploy your application. By packaging your application in a Docker container, you can easily distribute it to other machines and ensure that it runs in the same environment on each machine. In this blog post, I will show you…
Read More Run Spring Boot Application in Docker with ProfileSDKMAN is a tool that allows developers to easily manage multiple versions of software development kits (SDKs) on their system. It allows developers to switch between different versions of the same SDK, making it easy to test their code on different versions of the platform. To get started with SDKMAN, you will first need to…
Read More SDKMAN Tutorial for BeginnersIn this tutorial, we will discuss how to Mock Objects and Stub Methods with Mockito, and we will see various ways to stub with common scenarios and examples. Mocking and stubbing are the basis of writing clean and simple unit tests. So, let’s begin! Visit our Mockito introductory level tutorial if you are a beginner…
Read More How to Mock Objects and Stub Methods with Mockito?AngularJS was among the first JavaScript frameworks with tons of functionality. Google developed this framework and open-sourced it in 2012. Since then, a team of google developers and open-source contributors have worked together in maintaining and updating this framework. Whether you believe it or not, AngularJS is easy to learn, and by the end of…
Read More A Step-by-Step Tutorial for Developing Your First AngularJS AppIn this tutorial, we’ll implement a RestTemplate Error Handling Example. But before moving ahead, let’s see why is there a need to do this? The answer is: It becomes very tedious to handle exceptions through try/catch blocks as applications scale. An Efficient way to avoid this hassle is to implement a reusable error handler that…
Read More RestTemplate Error Handling ExampleThis tutorial will teach you how to implement Role-based access control in the new Spring Authorization Server. You will learn how to add a user role to a JWT token issued by Spring Authorization Server and configure Spring Resource Server to secure access to the API endpoint based on a user role. 1. Create, Run…
Read More Role-based Access Control in Spring Authorization ServerThis tutorial will teach you how to leverage RestTemplate to access RESTful APIs protected by basic authentication. You will learn to create a Basic Authentication-secured REST API and access it via RestTemplate. What is Basic Authentication As the name suggests, it is a basic form of authentication in which we must provide the correct username…
Read More RestTemplate Example with Basic AuthenticationFunction<String, String> modifyString = (name) -> name.toUppecCase().concat(“modified”);
Read More Introduction to Java Functional ProgrammingIn this tutorial, we’ll learn what IoC (Inversion of Control) and DI (Dependency Injection) are, as well as take a look at how these are implemented in the Spring framework. What Is Inversion of Control (IoC)? Inversion of Control is a principle in software engineering that separates the control of objects or how parts of…
Read More Dependency Injection and Inversion of Control in SpringIn today’s world of agile development, writing unit tests is vital and helpful in producing high-quality code. Unit tests ensure that the code complies with quality standards and that issues are identified before deployment. Java offers various testing frameworks to make the lives of developers easier, with Mockito being one of the well-known ones. In…
Read More An Introduction to the Mockito FrameworkWhen developing Spring Boot applications, we need to tell the Spring Framework where to look for the custom code that we wrote. Using component scan is one method of asking Spring to detect the components of our application which Spring will then manage for us from Initialization to Execution. Spring needs the information to locate…
Read More Component Scanning in a Spring Boot ApplicationIn this tutorial, you will learn how to start MySQL in a Docker Container. But before we begin, please ensure that Docker is installed on your system. If you need more information about Docker, please visit the Docker Tutorials page. Step 1: Pull MySQL Docker Image The first step is to pull the MySQL Docker image…
Read More How to Start MySQL in Docker ContainerIn this tutorial, you will learn how to define custom filters and specify their order of invocation in the Spring Boot application. What is a custom filter? Filters enable us to filter on either the request to a resource, the response from a resource, or both. Spring Boot provides a few options to register custom…
Read More How to Define Custom Filters in Spring Boot