Spring Framework

June 14, 2022 by Sergey Kargopolov

(Solved!) Deprecated WebSecurityConfigurerAdapter

This tutorial will teach you how to migrate from the depricated WebSecurityConfigurerAdapter towards the content-based security configuration. Spring Security allowed customizing HTTP security by extending a WebSecurityConfigurerAdapter class. This customization included user authorization, user authentication, etc. But in Spring Security 5.7.0-M2 the WebSecurityConfigurerAdapter is deprecated. This is because Spring Framework developers encourage users to move…

June 11, 2022 by Sergey Kargopolov

Create Spring Boot Project with Spring Initializr

In this tutorial, you will learn how to create a new Spring Boot project using Spring Initializr tool. What is String Initializr? Spring Initializr is a tool that helps you easily generate a new Spring Boot project and download it in a ZIP file. You can then open the created project in any Java development environment of your…

March 26, 2022 by Reham Muzzamil

A guide to Spring Boot AOP to Record User Operations

In this article, we will cover the basics of Aspect-Oriented Programming (AOP). You will learn how to use AspectJ to provide different AOP advices to Spring Boot applications to support cross-cutting issues like logging, profiling, caching, and transaction management and finally we will do a practical implementation to record user operations using Spring Boot AOP.…

March 17, 2022 by Sergey Kargopolov

Spring Authorization Server Tutorial

In this tutorial, you will learn how to create and configure the new Spring OAuth Authorization Server. Video Demonstration To demonstrate how to configure and use the new Spring Authorization Server, I have created a series of step-by-step video lessons. You can access these video lessons by enrolling in my video course called “OAuth 2.0…

February 18, 2022 by Sergey Kargopolov

Spring Web MVC – Return JSON in Response Body

In this tutorial, you will learn how to use the @ResponseBody annotation to return JSON in the HTTP response body. You might also be interested to learn how to Read JSON Request Body in the Spring MVC Web application. @ResponseBody Annotation To make a method in the Controller class return JSON in HTTP Response body…

February 11, 2022 by Sergey Kargopolov

Read Form Data in Spring Web MVC with @ModelAttribute

In this tutorial, you will learn how to read form data in your Spring MVC web application. To read form data in a method of the Controller class you can use the @ModelAttribute annotation. HTML Form Below is an example of an HTML form that submits form data to a /users URI path as an…

February 8, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – Reading URL Query String Parameters

In this lesson, you will learn how to read URL query string parameters in your Spring MVC web application. @RequestParam annotation Let’s assume that we need to create a method that needs to return a list but is limited to a certain number. To make our method read URL Query String Parameters, we will…

February 3, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – The ModelAndView Object

In this tutorial, you will learn how to pass information from your Controller class to the View using the Spring MVC ModelAndView object. In previous lessons, we discussed how to use Model and ModelMap for the same purpose – to pass properties from Controller to the View. The ModelAndView class, you will also use to pass…

February 3, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – The ModelMap Object

In this tutorial, you will learn how to pass information from your Controller class to the View using the Spring MVC ModelMap object. To make ModelMap object available to your controller, you will simply inject it as an argument to your method. Just the same way as we have injected, the Model object in the…

January 31, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – The Model Object

In this tutorial, you will learn how to pass information from your Controller class to the View using the Spring MVC Model object. A Model is an object that you can use to pass attributes from the Controller to the View. To make the Model object available to a method in your controller class, you…

January 28, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – Configure Thymeleaf Support

In this tutorial, you will learn to configure your Spring Boot Web MVC application support Thymeleaf templates. Thymeleaf Maven Dependency To make your Spring Boot Web MVC application support Thymeleaf templates, you will need to add one additional dependency to the pom.xml file. <!– https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-thymeleaf –> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> Templates Folder In the Spring…

January 26, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – Configure JSP Support

In this tutorial, you will learn how to configure the Spring Boot Web MVC application to support JSP(Java Server pages) and JSTL(JSP Standard Tag Library). Video Tutorial Maven Dependencies To configure your Spring Boot application to support Spring MVC, JSP and JSTL add the following maven dependencies to the pom.xml file. Spring Web The following…

January 21, 2022 by Sergey Kargopolov 0 comments

Spring Web MVC – Overview for Beginners

This tutorial is a high-level overview of the Spring Web MVC framework. Below is a high-level diagram of how things work in a Spring MVC Web application built with Spring Boot. Most online tutorials or books will show you a similar diagram that is designed around the Dispatcher Servlet. Because this Dispatcher servlet is…

December 21, 2021 by Mahnoor Malik 0 comments

Reading user data from AWS RDS with an access token

In this tutorial, we will read user data from AWS RDS with an access token. You can have a look at the following tutorials before moving ahead. Build and deploy a Serverless Spring Boot Web Application with AWS Lambda AWS Lambda with Spring Boot – A Simple GreetMe Example Amazon Cognito User Authentication in Spring…

December 21, 2021 by Reham Muzzamil 0 comments

Messaging with RabbitMQ in Spring Boot Application

In this article, you will learn about RabbitMQ and explore its common use cases. I will also guide you step-by-step on how to implement messaging using RabbitMQ in a Spring Boot application. By the end of this article, you will know how to publish and consume messages in a queue. So let’s get started! What…