Articles tagged spring-security
Get Started with Spring Boot and SAML
Spring is a long-time friend to enterprise companies throughout the world. When Spring Boot came along in 2014, it greatly simplified configuring a Spring application. This led to widespread adoption and continued investment in related Spring projects. One of my favorite Spring projects is Spring Security. In most cases, it simplifies web security to just a few lines of code. HTTP Basic, JDBC, JWT, OpenID Connect/OAuth 2.0, you name it—Spring Security does it! You might...
Build Secure Ionic Apps with Angular and JHipster
Ionic is a framework for building mobile apps with web technologies that look and act like native apps. Because they’re built with web technologies (HTML, JavaScript, and CSS), you can also deploy your Ionic apps as single-page applications. Or, even better, as progressive web apps (PWAs) that work offline. Ionic supports the big three web frameworks: Angular, React, and Vue. Once you’ve written your app, you can deploy it to a simulator or device with...
Use Thymeleaf Templates with Spring WebFlux to Secure Your Apps
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. The Thymeleaf library has been around at least for 10 years and it is still actively maintained as of today. It is designed to...
Better Integration Testing With Spring Cloud Contract
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Spring Cloud Contract was created as a way to help test interconnected microservices. Generally speaking, there are two options when testing microservices: 1) you...
How to Prevent Reactive Java Applications from Stalling
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Modern applications must work smoothly on high loads and with a high number of concurrent users. Traditional Java applications run blocking code and a...
Better Testing with Spring Security Test
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post...
How to Use Client Credentials Flow with Spring Security
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. The client credentials grant is used when two servers need to communicate with each other outside the context of a user. This is a...
Test in Production with Spring Security and Feature Flags
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Okta is an Identity and Access Management platform. The TL;DR: you offload the responsibility for secure authentication and authorization to Okta so you can...
Use PKCE with OAuth 2.0 and Spring Boot for Better Security
Browser and mobile feature enhancements move fast. Often times, these technologies move faster than security standards designed to protect them can keep up. OAuth 2.0 offers the best and most mature standard for modern applications. However, there hasn’t been an official release of this standard since 2012. Eight years is a very long time in Internet technology years! That doesn’t mean that its contributors have been sitting idly by. There is active work on the...
Use Okta Token Hooks to Supercharge OpenID Connect
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. OpenID Connect (OIDC) and OAuth 2.0 are already recognized as powerful tools for incorporating authentication and authorization into modern web applications. Okta has enhanced...
OAuth 2.0 Java Guide: Secure Your App in 5 Minutes
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Modern applications rely on user authentication, but it can present Java developers with a difficult challenge, as well as a range of framework-specific options...
Easy Spring Boot Deployment with AWS Elastic Beanstalk
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Nearly all applications rely on authentication. Developers, and the companies that employ them, want to confirm who is making the request and are they...
Use Spring Boot and MySQL to go Beyond Authentication
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. In this post, we will walk through how to build a simple CRUD application using Spring Boot, MySQL, JPA/Hibernate and Okta OpenID Connect (OIDC)...
Spring Method Security with PreAuthorize
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. This tutorial will explore two ways to configure authentication and authorization in Spring Boot using Spring Security. One method is to create a WebSecurityConfigurerAdapter...
Simple Authentication with Spring Security
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Authentication is vital to all but the most basic web applications. Who is making the request, wanting data, or wanting to update or delete...
Easy Single Sign-On with Spring Boot and OAuth 2.0
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Single sign-on used to be the “Holy Grail” of enterprise size companies and was usually only available companies that could afford it. Nowadays, we...
A Quick Guide to OAuth 2.0 with Spring Security
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. When building a web application, authentication and authorization is a must. Doing it right, however, is not simple. Computer security is a true specialty....
Secure Service-to-Service Spring Microservices with HTTPS and OAuth 2.0
{% include integrator-org-warning.html %} :page-liquid: :toc: macro Building a microservices architecture is possible with minimal code if you use Spring Boot, Spring Cloud, and Spring Cloud Config. Package everything up in Docker containers and you can run everything using Docker Compose. If you’re communicating between services, you can ensure your services are somewhat secure by not exposing their ports in your docker-compose.yml file. But what happens if someone accidentally exposes the ports of your microservice...
Migrate Your Spring Boot App to the Latest and Greatest Spring Security and OAuth 2.0
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Spring Boot 1.5.x made it easier than ever before to integrate Spring Security with OAuth 2.0 into your application. Spring Boot 2.1.x dials it...
Build Spring Microservices and Dockerize Them for Production
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. In this post, you’ll learn about microservices architecture and how to implement it using Spring Boot. After creating some projects with the technique, you...
Add Social Login to Your JHipster App
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Social login is a great way to offer your customers a simple and secure authentication method. Why force them to create and forget yet...
Spring Boot 2.1: Outstanding OIDC, OAuth 2.0, and Reactive API Support
Spring Boot 2.1 was recently released, eight months after the huge launch of Spring Boot 2.0. The reason I’m most excited about Spring Boot 2.1 to me is its improved performance and OpenID Connect (OIDC) support from Spring Security 5.1. The combination of Spring Boot and Spring Security has provided excellent OAuth 2.0 support for years, and making OIDC a first-class citizen simplifies its configuration quite a bit. For those that aren’t aware, OIDC is...
Build Reactive APIs with Spring WebFlux
Spring Boot 2.0 was a long-awaited release from the good folks at Pivotal. One of its new features is reactive web programming support with Spring WebFlux. Spring WebFlux is a web framework that’s built on top of Project Reactor, to give you asynchronous I/O, and allow your application to perform better. If you’re familiar with Spring MVC and building REST APIs, you’ll enjoy Spring WebFlux. There’s just a few basic concepts that are different. Once...
Build a Java REST API with Java EE and OIDC
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Java EE allows you to build Java REST APIs quickly and easily with JAX-RS and JPA. Java EE is an umbrella standards specification that...
Build a Secure API with Spring Boot and GraphQL
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. GraphQL is a data query language developed by Facebook in 2012 to solve a shortcoming of REST APIs and traditional database models. All too...
Build and Secure Microservices with Spring Boot 2.0 and OAuth 2.0
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Spring Boot has experienced massive adoption over the last several years. For Spring users, it offers a breath of fresh air, where they don’t...
Develop a Microservices Architecture with OAuth 2.0 and JHipster
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. JHipster is a development platform to generate, develop, and deploy Spring Boot + Angular web applications and Spring microservices. It supports using many types...
Secure a Spring Microservices Architecture with Spring Security and OAuth 2.0
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Building a microservices architecture with Spring Boot and Spring Cloud can allow your team to scale and develop software faster. It can add resilience...
Get Started with Spring Security 5.0 and OIDC
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Spring Security is a powerful and highly customizable authentication and access-control framework. It is the de-facto standard for securing Spring-based applications. I first encountered...
Secure your SPA with Spring Boot and OAuth
If you have a JavaScript single-page application (SPA) that needs to securely access resources from a Spring Boot application, you likely want to use the OAuth 2.0 implicit flow! With this flow your client will send a bearer token with each request and your server side application will verify the token with an Identity Provider (IdP). This allows your resource server to trust that your client is authorized to make the request. In OAuth terms...
Play Zork, Learn OAuth
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. In the early ’80s, some of the best “video” games were text-based adventures. These games would print out descriptive text of your surroundings and...
Add Role-Based Access Control to Your App with Spring Security and Thymeleaf
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. User management functions are required by a wide variety of apps and APIs, and it’s a common use-case to partition access to parts of...
Secure a Spring Microservices Architecture with Spring Security, JWTs, Juiser, and Okta
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. You’ve built a microservices architecture with Spring Boot and Spring Cloud. You’re happy with the results, and you like how it adds resiliency to...