
Authenticate to verify identity, then authorize what you may do across requests; Spring Security enforces access via credentials, roles, and authorities on URLs, controllers, and services.
Compare how Spring Security secures traditional web apps with sessions, cookies, CSRF, and form login to how it secures REST APIs with stateless token-based authentication, JWT, and JSON error responses.
Add spring security 7 to a spring boot app by including the spring boot starter security dependency, exploring auto-configuration, and securing rest apis with a default login form.
Learn how Spring Security provides a default user to access rest APIs via form-based or http basic authentication, and customize the default credentials with Spring.Security.user.name and Spring.Security.user.password in application.properties.
Disable form-based login and http basic authentication in a spring boot app, and verify changes by testing secured rest APIs with a browser and postman.
Learn how authorization works in Spring Security, from authentication and the security context to role-based access control on endpoints, ensuring least-privilege access and forbidden responses when needed.
Create user and role JPA entities and establish a many-to-many relationship with a join table users_roles in a Spring Boot app using MySQL, with fetch type eager and cascade all.
Trace the database authentication flow in spring security, from the authentication filter converting requests to authentication objects to the DAO authentication provider loading users from the database and verifying passwords.
Explore how Spring Security handles authentication and authorization errors via the exception translation filter, routing 401 and 403 to entry points and handlers, to help customize json error responses.
Implement a custom access denied handler in Spring Security to return a JSON error response for forbidden admin API access. Configure it in security and test with Postman.
Explore how a json web token, or jwt, enables stateless authentication with three parts: header, payload, and signature, separated by dots, and issued after login as a bearer token.
Spring Security is the most powerful and widely used framework for securing Java and Spring Boot applications. Whether you are building REST APIs, enterprise applications, or microservices, understanding Spring Security is essential for implementing authentication, authorization, and protecting sensitive resources.
This course, [NEW] Learn Spring Security 7 Framework: The Practical Guide, is a complete hands-on course designed to help you master Spring Security 7 from scratch using real-world examples and step-by-step demonstrations.
You will begin by understanding the core fundamentals of Spring Security, including what Spring Security is, its key features, and the difference between authentication and authorization. You will also learn how Spring Security secures REST APIs compared to traditional web applications, and understand session-based and token-based authentication.
Next, you will build a Spring Boot project from scratch using IntelliJ IDEA and integrate Spring Security step by step. You will explore how authentication works internally, understand the Spring Security filter chain, and learn how to configure security based on your custom requirements. You will also learn how to disable default configurations such as form login and HTTP Basic authentication.
This course also covers authorization in depth. You will implement role-based authorization and method-level security to control access to resources effectively. You will learn important core components such as PasswordEncoder, AuthenticationManager, and SecurityContextHolder, and understand how Spring Security manages authentication internally.
You will then implement database authentication using MySQL. You will create User and Role entities, configure JPA repositories, implement a custom UserDetailsService, and connect Spring Security with the database. You will also understand the complete authentication flow when users log in using database credentials.
Exception handling is another critical topic covered in this course. You will learn how to handle authentication and authorization exceptions using CustomAuthenticationEntryPoint and AccessDeniedHandler, and understand how Spring Security handles errors internally.
Finally, you will implement token-based authentication using JWT (JSON Web Token), which is widely used in modern REST APIs and microservices. You will learn how JWT works, how to generate and validate tokens, create JWT authentication filters, and secure REST APIs using JWT in Spring Boot.
This course focuses on practical implementation rather than theory. Every concept is explained with clear examples and live coding demonstrations so you can apply what you learn immediately.
By the end of this course, you will be able to confidently secure Spring Boot applications using Spring Security 7, implement authentication and authorization, connect with databases, and build secure REST APIs using JWT.
If you are a Java developer, Spring Boot developer, or anyone preparing for Spring Security interviews, this course will give you the practical skills needed to build secure, production-ready applications.