Introduction In this tutorial, we will focus on unit testing the service layer of a Spring Boot application using JUnit 5 and Mockito. Unit testing is the process of testing individual units or components of an application in isolation. This ensures that each unit behaves correctly in different scenarios. JUnit 5 is a popular testing framework …
Spring Boot + JUnit 5 + Mockito: Unit Testing Service Layer Read More »
In this tutorial, we will build a Spring Boot CRUD (Create, Read, Update, Delete) application using MongoDB. We will manage a Todo entity with fields: id, title, description, status, and createDate. We will use Java record for the DTO and follow best practices by keeping the conversion logic in the service layer. We will develop …
Spring Boot CRUD Example with MongoDB: CRUD REST API Step-By-Step Guide Read More »
In this tutorial, we will build a Spring Boot CRUD (Create, Read, Update, Delete) application using MariaDB. We will develop CRUD RESTful web services for creating, reading, updating, and deleting todos. Spring Boot Three-Layer Architecture +———–+ +—————–+ | | | Controller Layer| | Postman +—–>+ (Handles HTTP | | (Client) | | requests and | …
In this tutorial, we will build a Spring Boot CRUD (Create, Read, Update, Delete) application using MS SQL Server. We will build CRUD RESTful web services for creating, reading, updating, and deleting products. Spring Boot Three-Layer Architecture +———–+ +—————–+ | | | Controller Layer| | Postman +—–>+ (Handles HTTP | | (Client) | | requests …
Spring Boot CRUD Example with MS SQL Server: CRUD REST API Step-By-Step Guide Read More »
In this tutorial, we will build a Spring Boot CRUD (Create, Read, Update, Delete) application using the Oracle Database. Spring Boot Three-Layer Architecture +———–+ +—————–+ | | | Controller Layer| | Postman +—–>+ (Handles HTTP | | (Client) | | requests and | +———–+ | responses) | +——–+——–+ | v +——–+——–+ | Service Layer | …
Spring Boot CRUD Example with Oracle Database: CRUD REST API Step-By-Step Guide Read More »
In this tutorial, we will build a Spring Boot CRUD (Create, Read, Update, Delete) application using PostgreSQL as the database. The application will manage a Product entity with fields: id, name, description, and price. We will use Java record for the DTO (Data Transfer Object) and follow best practices such as keeping the conversion logic …
Spring Boot CRUD Example with PostgreSQL: Step-by-Step Guide Read More »
In this tutorial, you’ll learn how to build a Spring Boot CRUD (Create, Read, Update, Delete) application using the H2 in-memory database. We will use Java record for the DTO (Data Transfer Object) and follow best practices by keeping the conversion logic in the service layer. What You’ll Learn: Setting up a Spring Boot project …
Spring Boot CRUD Example with H2 Database: Step-by-Step Guide Read More »
In this tutorial, we will create a Spring Boot CRUD (Create, Read, Update, Delete) application using MySQL as the database. We will use Java record for the DTO (Data Transfer Object) to transfer data between the client and server. What You’ll Learn: Setting up a Spring Boot project. Configuring MySQL for persistence. Implementing CRUD operations …
Spring Boot CRUD REST API with MySQL and Java Record DTO: Step-by-Step Guide Read More »
Introduction In this tutorial, we will learn how to use the DTO (Data Transfer Object) pattern in a Spring Boot application. Martin Fowler describes the Data Transfer Object in his famous book Patterns of Enterprise Application Architecture. The main idea of DTOs is to reduce the number of remote calls that are expensive. Data Transfer …
Introduction In this chapter, we will explore how to implement logging in a Spring Boot application using an Employee Management Project as an example. Logging is crucial for tracking the behavior of an application, debugging issues, and monitoring performance. Spring Boot provides robust support for various logging frameworks and makes it easy to configure and …
Introduction In this chapter, we will explore how to implement a many-to-many relationship in a Spring Boot application by building a Student Management Project. We will create entities for Student and Course, configure the many-to-many relationship between them, and demonstrate how to perform CRUD operations.
Introduction In this chapter, we will explore how to implement a one-to-many relationship in a Spring Boot application by building an Employee Management Project. We will create entities for Employee and Department, configure the one-to-many relationship between them, and demonstrate how to perform CRUD operations.
Introduction In this chapter, we will explore how to implement a one-to-one relationship in a Spring Boot application by building a User Management Project. We will create entities for User and Profile, configure the one-to-one relationship between them, and demonstrate how to perform CRUD operations.
Introduction In this chapter, we will explore how to test a Spring Boot application using JUnit 5 and Mockito by building a Product Management project. We will cover setting up the project, creating entities and repositories, writing unit tests for the service layer, and writing integration tests for the controller layer.
Introduction In this chapter, we will build a web application using Spring Boot and Thymeleaf. We will create a Student Management System project to demonstrate the integration of Thymeleaf with Spring Boot, and we will explain Spring Boot auto-configuration for Thymeleaf. This chapter will guide you through setting up the project, configuring Thymeleaf, and building …
Introduction Spring Boot Actuator is a powerful module that provides production-ready features such as monitoring, metrics, and health checks. It enables you to monitor and manage your application through HTTP endpoints and JMX. In this chapter, we will cover everything you need to know about Spring Boot Actuator, including how to set it up, the …
Introduction In this chapter, we will learn about exception handling in Spring Boot 3.2 by building a Library Management System from scratch. We will cover how to set up the project, configure the H2 database, create entities and repositories, handle custom exceptions, and implement global exception handling using the @RestControllerAdvice annotation.
Introduction In this chapter, we will build a Delete Student REST API for our Student Management System Project with a MySQL database. We will update the service layer, build the Delete Student REST API, and test it using the Postman client. Each step will be explained in detail. What We Will Cover in This Chapter …
Introduction In this chapter, we will build an Update Student REST API for our Student Management System Project with a MySQL database. We will update the service layer, build the Update Student REST API, and test it using the Postman client. Each step will be explained in detail. In the next chapter, we will build …
Introduction In this chapter, we will build a Get All Students REST API for our Student Management System Project with a MySQL database. We will update the service layer, build the Get All Students REST API, and test it using the Postman client. Each step will be explained in detail. In the next chapter, we …
Introduction In this chapter, we will build a Get Single Student REST API for our Student Management System Project with a MySQL database. We will update the service layer, build the Get Single Student REST API, and test it using the Postman client. Each step will be explained in detail. In the next chapter, we …
Introduction In this chapter, we will build a save Student REST API for our Student Management System Project with a MySQL database. We will create a service layer with an interface and implementation class, build the save Student REST API, and test it using the Postman client. Each step will be explained in detail. In …
Introduction In this section of the chapters, we will build CRUD REST APIs for a Student Management System Project with a MySQL database. We will create and set up a Spring Boot project in IntelliJ IDEA, using a three-layer architecture. We will configure the MySQL database, create a Student JPA entity, and a repository to …
Spring Boot MySQL CRUD Operations: Setup the Spring Boot Project Read More »
Introduction In this chapter, we will explore the recommended package structure for a Spring Boot project. A well-organized package structure is crucial for maintaining the readability, manageability, and scalability of your application. We will use a typical Spring Boot project structure to illustrate the concepts. Table of Contents Introduction Standard Package Structure Explanation of Each …
Introduction In next upcoming chapter, we are going to use Spring Data JPA in Spring Boot application to work MySQL database so in this chapter, we will take look into the Introduction to Spring Data JPA, its features, and demonstrate how to integrate it with Spring Boot. We’ll cover the differences between Spring Data JPA, …