Spring Boot

January 6, 2023 by Sergey Kargopolov

Migrating from a Deprecated autorizeRequests()

In 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…

January 5, 2023 by Sergey Kargopolov

@Scope Annotation in Spring

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…

January 5, 2023 by Sergey Kargopolov

The @RequestMapping Annotation: A Comprehensive Guide

RESTful web services use HTTP methods and representations to manage resources. In order to properly handle these resources, it’s important to understand how to define the expected behaviour of an endpoint in terms of the HTTP request and response, including specifying request methods, headers, and media types. By using Spring’s @RequestMapping annotation, we can map…

January 5, 2023 by Sergey Kargopolov

@Controller Annotation in Spring

In 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…

January 4, 2023 by Sergey Kargopolov

@Service Annotation in Spring

In 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…

January 4, 2023 by Sergey Kargopolov

Spring Boot Stereotype Annotations

Spring 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…

January 3, 2023 by Sergey Kargopolov

@Lazy Annotation in Spring Boot

This 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…

January 3, 2023 by Sergey Kargopolov

@Bean Annotation Tutorial

This 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…

December 30, 2022 by Sergey Kargopolov

Spring Core Annotations with Examples

Core Spring Framework Annotations are a set of annotations that are used to simplify the development process of Java applications using the Spring Framework. These annotations can be used to inject dependencies, define components, and specify configuration details without the need for explicit XML configuration. Some of the most commonly used Core Spring Framework Annotations…

December 30, 2022 by Sergey Kargopolov

How to Use @Value Annotation in Spring

@Value is a Spring annotation that allows you to inject a property value from a configuration file into a field in your application. This can be useful for injecting values such as database connection strings, API keys, or other application-specific configurations. To use @Value in a Spring Boot application, follow these steps: Step 1. Add…

December 30, 2022 by Sergey Kargopolov

@Configuration Annotation in Spring Boot

@Configuration is a Spring annotation that indicates that a class declares one or more @Bean methods and may be processed by the Spring container to generate bean definitions and service requests for those beans at runtime, for example: @Configuration public class AppConfig { @Bean public MyService myService() { return new MyServiceImpl(); } } Here, the…

December 29, 2022 by Sergey Kargopolov

How to Enable Actuator’s HttpTrace in Spring Boot 3

In this tutorial, you will learn how to enable the Actuator’s httpTrace endpoint in Spring Boot 3. In fact, /httptrace has been renamed to /httpexchanges, so this tutorial will teach you how to enable the Actuator’s /httpexchanges API endpoint instead of /httptrace. The httpexchanges endpoint provides information about HTTP request-response exchanges. These HTTP exchanges are essentially…

December 27, 2022 by Sergey Kargopolov

Excel in Spring Framework: The Complete Guide

Spring Framework is a popular Java-based framework that provides a comprehensive infrastructure for developing Java applications. The framework was initially released in 2002 by Rod Johnson, who was frustrated with the complexity of the existing Java EE (Enterprise Edition) platform. He wanted to create a simpler and more lightweight framework that would make it easier…

December 26, 2022 by Ali Ramosni

Installing Spring Boot CLI

Spring Boot CLI is a command-line interface tool that allows developers to create and run Spring applications without needing an external development environment. This tutorial will teach you how to install Spring Boot CLI on macOS and Windows. Let’s begin with macOS. Installing Spring Boot CLI on macOS To install Spring Boot CLI on macOS,…

December 26, 2022 by Ibrahim Alvi

Spring Batch Tutorial

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…