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, …
Introduction In this chapter, we will cover the @DeleteMapping annotation in Spring Boot. The @DeleteMapping annotation is used to handle HTTP DELETE requests, which are typically used for deleting existing resources. We will create endpoints to delete resources using this annotation, focusing on the Employee entity as our primary example. Understanding @DeleteMapping Annotation What is …
Spring Boot DELETE REST API – @DeleteMapping Annotation Read More »
Introduction In this chapter, we will cover the @PutMapping annotation in Spring Boot. The @PutMapping annotation is used to handle HTTP PUT requests, which are typically used to update existing resources. We will create endpoints to update resources using this annotation, focusing on the Employee entity as our primary example. Understanding @PutMapping Annotation What is …
Spring Boot PUT REST API – @PutMapping Annotation Read More »
Introduction In this chapter, we will cover the @PostMapping and @RequestBody annotations in Spring Boot. The @PostMapping annotation is used to handle HTTP POST requests, while the @RequestBody annotation is used to bind the request body to a method parameter. We will create endpoints to create resources using these annotations, focusing on the Employee entity …
Spring Boot POST REST API – @PostMapping and @RequestBody Read More »
Introduction In this chapter, we will cover everything about the @GetMapping annotation in Spring Boot. @GetMapping Annotation Overview What is @GetMapping? The @GetMapping annotation in Spring Boot is used to create a mapping between HTTP GET requests and handler methods in a controller. It is a specialized version of the @RequestMapping annotation that is specifically …
Spring Boot GET REST API – @GetMapping Annotation Read More »
Introduction In this chapter, we will explore how to create a Spring Boot REST API that uses the @RequestParam annotation to handle query parameters. Query parameters are a common way to pass data to REST endpoints, especially for filtering, sorting, or paginating results. We will continue from the previous chapters and extend our StudentController to …
Spring Boot REST API with Request Param – @RequestParam Annotation Read More »
Introduction This chapter will continue from the previous chapter, where we created a Spring Boot REST API that returns a list of Java Beans as JSON. We will now learn how to use the @PathVariable annotation to create a REST API that can accept and handle path variables. @PathVariable Annotation Overview What is @PathVariable? The …
Spring Boot REST API with Path Variable – @PathVariable Read More »
Introduction Continuing from the previous chapter, where we created a Spring Boot REST API that returns a single Java Bean. In this chapter, we will build a Spring Boot REST API that returns a List of Java Beans (JSON). This is useful for scenarios where you need to return a collection of data objects, such …
Spring Boot REST API Returns List of Java Beans (JSON) Read More »
Introduction In this chapter, we will build the Spring Boot REST API that returns a Java Bean in JSON format. This is a common requirement for building web services that return the JSON to the client. Setting Up the Project Using Spring Initializr Open Spring Initializr: Navigate to Spring Initializr in your web browser. Configure …
Introduction In this chapter, we will explore Spring Boot DevTools, a set of tools designed to enhance the development experience when building Spring Boot applications. DevTools provides features such as automatic restart, live reload, and configurations that help speed up the development process. What is Spring Boot DevTools? Spring Boot DevTools is a module included …
Introduction In this chapter, we will learn how to run the Spring Boot application from the command line. Running your application from the command line can be useful for testing, deployment, and automation purposes. Prerequisites Before you can run your Spring Boot application from the command line, ensure that you have the following installed and …
Introduction In this chapter, we will create a simple “Hello World” web application using Spring Boot and Thymeleaf. Thymeleaf is a popular templating engine for Java applications, especially for web applications. It integrates seamlessly with Spring Boot to produce dynamic web pages. Tools and Technologies Used Java 21 Spring Boot 3.2 Thymeleaf IntelliJ IDEA Maven …
Introduction In this chapter, we will explore the @SpringBootApplication annotation. This annotation simplifies the configuration of Spring Boot applications by combining several annotations into one, making the setup process easier. The class annotated with @SpringBootApplication is the main entry point of a Spring Boot application, and the execution starts from this class. What is @SpringBootApplication? …