Hello everyone, I hope you all are well, today we will learn how to create user registration and login using Spring boot, Spring security, Thymeleaf, JPA, and H2DB . The GitHub repository link is provided at the end of this tutorial. You can download the source code. Technologies used: Spring Boot 2.5.5 Spring Data JPA Spring Security Thymeleaf Maven 3+ Java 17 H2 Database User Interface User Registration Authentication Failed Authentication success Sign out Project Structure: Maven[pom.xml]: A Project Object Model or POM is the fundamental unit of work in Maven. It is an XML file that contains information about the project and configuration details utilized by Maven to build the project. It contains default values for most projects. Some of the configurations that can be designated in the POM is the project dependencies, the plugins or goals that can be executed, the build profiles, and so on. Other information such as the project version, description, developers, mailing lists