I am very happy to announce the release of my first (of many I hope 😊 ) Pluralsight course: SOLID Software Design Principles in Java. Really enjoyed working on this and I hope that you will find it very practical and useful. All software developers know the burden of working with brittle systems that acquire… Continue reading
Spring Boot and Angular are two technologies that are becoming more and more popular. But combining them can be a little bit challenging, especially for developers familiar with more legacy JavaScript frameworks. That’s why I decided to create a video course that will teach you everything you need to create applications with Angular and Spring… Continue reading
If you are looking for a fast tutorial on how to send emails in Spring Boot applications, then you landed in the right place 😀 1) Add the spring-boot-starter-mail dependency to the pom.xml file <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency> 2) Configure a mail server for testing purposes. I would recommend Mailtrap, a free online service for… Continue reading
Initializing a database means to put it in a state that allows an application to work as expected. Think about it for a second. When you deliver a product to your client, do you ship it with an empty database and let them populate it or create the schema? I sure hope not 🙂 The… Continue reading
The Problem Recently, while working on a project I encountered a strange behavior with the path variable binding in Spring controllers. It seems that, by default, the text after the last dot gets truncated in the @PathVariable value. So I decided to share this problem and a solution for it in this post:) Let’s take… Continue reading
In complex applications, there are times when you will want the Spring dependency injector to create an instance of a class based on a given condition. One common case is to configure the bean definition based on a property defined in the application.properties file. By using this approach you can load custom beans at runtime… Continue reading
By default, Spring-Boot applications are packaged as JAR files and they have an embedded container that hosts them. The embedded container allows developers to not have any web server installed in order to run their apps. This is pretty cool and brings many benefits for developers like easier deployment and management. However, customers usually have… Continue reading
Enums in Java are used to represent a list of predefined values. Most of the time, you will probably not care about the associated value of an enum constant. In this scenario, you will write enums like this: /** * Normal enum in which no custom numeric value is associated with enum member */ public… Continue reading
In a previous post, I created a simple UDP client-server in Java. While that implementation is perfectly OK, and you can certainly use it in your applications, it does have 2 major pitfalls: The UDP client has more responsibilities than it has to. It listens on UDP for incoming messages, but it also handles their… Continue reading
From my experience, creating networking applications in modern programming languages is not a daunting task anymore. A lot of the complicated details are abstracted in base class libraries. And Java is no exception. In this post, you will see how to create a basic client-server application that communicates via UDP unicast. Without further ado, let’s write some… Continue reading