Detecting a Mobile Device with Spring Boot

Last Update: 15.06.2017. By Jens in Spring Boot | Spring MVC

Detecting mobiles is straight forward with Spring Boot when you know there’s a secret module that does the heavy lifting: Spring Mobile.

3 Learning Mistakes Developers Make

Last Update: 14.06.2017. By Jens in Developers Life | Learning

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.

How to Create Your Own Starter for Spring Boot

Last Update: 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(s) with Spring MVC and Spring Boot

Last Update: 23.05.2017. By Jens in Spring Boot | Spring MVC

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.

This Problem with PySide, Py2App and Brew drove me Nuts

Last Update: 23.05.2017. By Jens in python | pyside

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.

Do you learn with video courses?

Last Update: 10.05.2017. By Jens in Developers Life | Learning

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.

Add Custom Information to Spring Boot Info Actuator

Last Update: 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.

How to Handle Java 8 Dates and Time with Jackson in Spring Boot (JSR-310)

Last Update: 04.05.2017. By Jens in Spring Boot | Spring MVC

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).

How to return XML in Spring MVC Rest APIs

Last Update: 24.04.2017. By Jens in Spring Boot | Spring MVC

Sometimes you still need to return XML in your Rest API for various reasons. When you build your API with Spring Boot and Spring MVC, it is a simple, easy task.

Ultimate Resources for Freelance Developers

Last Update: 20.04.2017. By Jens in Developers Life | Learning | resource tip

It all started a few years ago that I felt stuck in my career as a software developer. For years I’ve been following the typical way of learning and dabbling with new technologies, mainly in my spare time or on occasion on the day job. Tech was fun, and I always love learning new things. However, when I felt stuck I realized that my previous ways did bring me so far, but they do not take me any further. It doesn’t matter if you’re an employee, freelancer or owning a small agency. At some point, there’s a glass ceiling for money and the kind of work you do.