The previous part of this tutorial taught us how we can add custom methods into a single repository. Although that is a very useful skill, it doesn't help us when we have to add the same method into all repositories of our application. Luckily for us, Spring Data provides a way to add custom methods […] Read more

A few weeks ago we learned to transform the value of a single request parameter into an object, which is passed to our controller method as a method parameter, by using Spring type converters. Using type converters is a good choice if we want to create "simple" value objects and inject these objects into our […] Read more

A few weeks ago we learned how we can parse date and time information from a request parameter by using the @DateTimeFormat annotation. This is a simple and clean solution that works very well if we don't have "too many" controller methods that use this approach. The drawback of this solution is that we have […] Read more

A few days ago I had to write a controller method that is used to upload files to a Spring web application. This is an easy task, but I had another requirement that turned out to be a problem: every file has an expiration date that must be given when the file is uploaded. What […] Read more

If you read my blog on a regular basis, you have probably noticed that I have written many tutorials about automated testing. The problem is that some of these tutorials are quite old and outdated, and that is why I am going to update them. Here's where you come in. Before I can help you […] Read more