Spring Boot Security In-Memory Authentication

In this Spring Security tutorial, we will learn how to configure Spring Security to use in-memory authentication. In-memory authentication is a simple and efficient way to manage user authentication for small applications or for development and testing purposes. It involves storing user credentials directly in the application’s memory rather than in an external database. This method allows for quick setup and easy management of users without the need for database configuration.

By the end of this tutorial, you will have a clear understanding of how to implement in-memory authentication using Spring Boot and Spring Security, enabling you to secure your Spring Boot applications with minimal configuration.

Learn everything about Spring Security: Spring Security Tutorial.

Step 1: Create a Spring Boot Project

Go to Spring Initializr.

Fill in the project details:

• Project: Maven
• Language: Java
• Spring Boot: 3.2.0
• Group: com.rameshfadatare
• Artifact: spring-security-inmemory-auth
• Name: spring-security-inmemory-auth
• Package name: com.rameshfadatare.springsecurityinmemoryauth
• Packaging: Jar
• Java: 17