About Me

Hi, my name is Wim Deblauwe, a software developer specialized in Java, Spring, and JVM related tooling.

I wrote Taming Thymeleaf, a book to learn more about using Thymeleaf with Spring Boot. I also have a few open-source projects: one that makes it easy to do Spring Boot error handling, another for integration of Cypress with Testcontainers and a few others.

I blog regularly here about Spring Boot, Thymeleaf,Asciidoctor and other programming related subjects.

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Recent posts

Oct 3, 2024

Authoring Web Components in a Spring Boot Thymeleaf project

This blog post will show you how to create your own Web Components in a Spring Boot with Thymeleaf project. The setup will use Vite to be able to write the Web Components in TypeScript and have live reload of the components so you can easily edit them and use them in your Thymeleaf templates.

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Jul 10, 2024

Spring Integration using JSON serialization

In my previous blog post Transactional Outbox pattern with Spring Boot, I compared Spring Integration with Spring Modulith to implement the microservices outbox pattern. I mentioned that a drawback of Spring Integration is the fact that Java serialization is used so the data in the database is not readable with standard database tooling.

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Jun 25, 2024

Transactional Outbox pattern with Spring Boot

If you are building a microservice architecture, or you just need to send emails from your monolith, you should look into the Transactional Outbox pattern to ensure reliable communication between services. This blog post shows a few ways how you can implement this using Spring Boot.

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Feb 12, 2024

Rapid application prototyping with Bootify

Starting a new application can be a daunting task. How will you structure your code? How can you get started quickly? There are a few tools such as JHipster that help you setup your project. One such alternative that I recently looked at is Bootify.

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Dec 14, 2023

Htmx global error handler

The htmx-spring-boot library 3.2.0 has just been released and now supports using HtmxResponse as a return type for error handlers. This blog post shows how you can use this.

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Dec 3, 2023

Book launch: Modern frontends with htmx

🎉 Thrilled to announce the official release of my new book 'Modern frontends with htmx'! Discover how to master htmx with SpringBoot and Thymeleaf for rich, interactive web applications.

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Oct 25, 2023

Ttcli release 1.0.0

I am happy to announce version 1.0.0 of ttcli. Ttcli is a command line tool to generate a Spring Boot with Thymeleaf project with support for live reloading.

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Oct 19, 2023

Taming Thymeleaf update for Thymeleaf 3.1.2

Thymeleaf 3.1.2 was released recently and is inluded in Spring Boot 3.0.10 and 3.1.3. For security reasons, it is no longer allowed for a Thymeleaf template to directly access org.springframework.web.servlet.support.ServletUriComponentsBuilder. This was used in my Taming Thymeleaf book to build a generic fragment that can be used for pagination controls. If you still use it, you get this exception while running the application: org.springframework.expression.EvaluationException: Access is forbidden for type 'org.

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Mar 31, 2023

Taming Thymeleaf update for Spring Boot 3

My book Taming Thymeleaf has just been updated on leanpub for Spring Boot 3. This blog post will walk you through the most important changes if you want to upgrade to Spring Boot 3 from Spring Boot 2 if you used the previous version of the book.

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Feb 21, 2023

Toasts notifications in Thymeleaf with Shoelace and htmx - part 2

Yesterday, I shared how to combine Thymeleaf, Shoelace and htmx to show toast notifications in your web application. This worked pretty well and only needed a little JavaScript, but we can even further reduce the JavaScript used further and make them even more useful as the same time!

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