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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
Add the following dependencies:
- Spring Web
- Spring Security
Click on the “Generate” button to download the project as a ZIP file.
Extract the ZIP file and open it in your favorite IDE (e.g., IntelliJ IDEA, Eclipse, VS Code).
Project Structure
The project structure should look like this:
spring-security-inmemory-auth
├── src
│ ├── main
│ │ ├── java
│ │ │ └── com
│ │ │ └── rameshfadatare
│ │ │ └── springsecurityinmemoryauth
│ │ │ ├── SpringSecurityInmemoryAuthApplication.java
│ │ │ └── config
│ │ │ └── SpringSecurityConfig.java
│ │ └── resources
│ │ └── application.properties
└── pom.xml
