In this article, we will learn about Many-to-Many relationships in JPA and how to implement them in a Spring Boot application. Let’s get started! @ManytoMany annotation A many-to-many relationship occurs when multiple records in one table are associated with multiple records in another table. The @ManyToMany annotation is used to define a many-valued association with…
Read More Many-to-Many Relationship in Spring Boot Rest with JPADependency Injection is a design pattern that allows the separation of concerns in an application by removing the hard-coded dependencies between objects. In Dependency Injection, the objects are provided with their dependencies instead of having to hard-code them. This makes the application more flexible, maintainable, and easier to test. Spring Framework provides several ways to…
Read More Field-based Dependency Injection in SpringIn this guide, I will walk you through the Caching Abstraction in Spring Boot and how to improve the application’s performance. I will walk you through how to enable default caching in Spring Boot with an example of different use cases. What is Cache? A cache is a small and fast, efficient memory space that…
Read More Spring Boot Caching with ExamplesSpring Boot offers various methods and techniques for setting up your database. It can automatically create and initialize the database using the information in the data source. Spring Boot looks for SQL files in specific locations in your project’s classpath, such as “schema.sql” and “data.sql”. In this tutorial, you will learn how to configure your…
Read More Database Initialization with Spring BootIn this Spring Security tutorial, you will learn how to enable Basic Authentication for your Spring Boot project and configure the default username, password and user role. You will also learn how to secure a web service request URL so only authenticated users with a default username, password and role can access it. If you use…
Read More Spring Security Default Username, Password, RoleIn this tutorial, you will learn what the @Respository annotation is and how to use it in your Spring Boot applications. @Repository is a Spring annotation that indicates that the decorated class is a repository. A repository is a mechanism for encapsulating storage, retrieval, and search behaviour which emulates a collection of objects. How to…
Read More @Repository Annotation in SpringIn Spring Boot 3, the authorizeRequests() method of the WebSecurityConfigurerAdapter class has been deprecated. This method was previously used to configure the authorization rules for securing web applications. To secure your application in Spring Boot 3 using Spring Security, you should use the HttpSecurity class and its authorizeHttpRequests() method instead. You can use the authorizeHttpRequests() method…
Read More Migrating from a Deprecated autorizeRequests()In this tutorial, you will learn what @Scope annotation is and how to use it in Spring. @Scope is a Spring annotation used to specify a bean’s lifecycle. It can be used to define the lifecycle of a bean as a singleton, prototype, request, session, or global session. If you are interested to learn about other…
Read More @Scope Annotation in SpringIn this tutorial, you will learn what the @RequestMapping annotation is and how to use it in Spring. @RequestMapping is a Spring Boot annotation that is used to map a specific HTTP request method to a specific Java method. It is commonly used in RESTful web services to specify the request type (GET, POST, PUT,…
Read More @RequestMapping Annotation in SpringIn this tutorial, you will learn what the @Controller annotation is and how to use it in Spring. You will use @Controller annotation to mark a class as a Spring MVC controller. It is generally used with @RequestMapping annotation to map HTTP requests to specific methods in a controller class. How to User @Controller Annotation…
Read More @Controller Annotation in SpringIn this tutorial, you will learn what the @Service annotation is and how to use it in your Spring Boot applications. @Service annotation is a part of the Spring Framework, and you will use it to mark a class as a service layer component. This annotation is typically used in conjunction with @Component, which is…
Read More @Service Annotation in SpringSpring Framework is an open-source application development framework that provides comprehensive infrastructure support for developing Java applications. One of the key features of the Spring Framework is its support for stereotype annotations, which provide a convenient way to configure and manage the various components in a Spring-based application. What are Stereotype Annotations? Stereotype annotations are…
Read More Spring Boot Stereotype Annotations@Component is a Spring annotation that is used to indicate that a class is a component. Components are objects that make up the structure of an application and are responsible for performing specific tasks. They are typically used to represent services, controllers, repositories, and other types of objects that are used to implement business logic…
Read More @Component Annotation in SpringThis tutorial will teach you what the @Lazy annotation is and how it is used. The @Lazy annotation in Spring Boot is used to mark a bean or component as lazy-initialized. This means that the bean will not be instantiated until it is first requested by another bean or by the user. @Lazy Annotation Example…
Read More @Lazy Annotation in Spring BootThis tutorial will teach you what @Bean annotation is and how to use it. The @Bean annotation indicates that a method produces a bean to be managed by the Spring container. It is a method-level annotation that is used to define beans in Spring configuration files. How to use @Bean annotation Here is a simple…
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