19.06.2017 by Jens in Spring Boot
This post is the first part of a series of how to deploy a Spring Boot application to the cloud. We'll start with IBM Bluemix.
Detecting mobiles is straight forward with Spring Boot when you know there's a secret module that does the heavy lifting: Spring Mobile.
Learning can be fun or hard or maybe both. For me, it's often a mix of both. I developed my own learning style over many, many years. It usually works well for me and I pick up new topics, be it a new programming paradigm, language or business stuff, pretty straight forward. However, when I tried to learn some basic Japanese last year, I forgot everything and made some common mistakes again.
Recently, I was asked if one can learn to build applications with Spring Boot without having any knowledge and experience of the Spring Framework. Here's my answer to this question.
24.05.2017 by Jens in Spring Boot
Spring Boot provides a good set of starters for the popular open source frameworks used in modern Spring applications. However, it is not limited to that, and we are not at the mercy of the Spring Boot gods. We can create our own starters.
Uploading a file with Spring MVC is pretty easy, and it gets even easier when running in Spring Boot. However, it's one of the tasks a developer does once in a while and therefore is pretty easy to forget. The page is a reminder for all of us.
I build several desktop applications using PySide. It works like a charm on Windows. However, I found a nasty bug in the Mac version which I could not reproduce on my local machine. This one drove me nuts. It was hard to analyze, I own just one Mac and do not have access to another machine. Luckily, with the help of some very long googling (guessing symptoms) and the help of a user of one of my applications, I could fix the issue. As a reminder for myself and help for you, I document it.
While researching alternatives to publishing books for programming related topics, I noticed that video courses get more and more common as the medium. I started wondering if works for coding related topics.
10.05.2017 by Jens in Spring Boot
The Spring Boot Actuators are a big helper and time saver when you bring your application into production. They expose different types of information, like health, metrics, dump, info, etc. out of the box and you can even expose your informations via well-defined interfaces.
When you are starting a new Spring Boot application today, you will probably want to use Java 8. However, it still can be tricky with certain frameworks when using new features like the Date and Time API (known as JSR-310).