Spring Boot and React: Happily Ever After

Matt McCandless Development Technology, React, Spring Boot Leave a Comment

So you have mastered Spring Boot and started toying around with React. Now you want React to talk to your Boot app as your back-end API. That’s fabulous. You probably already know how to do this, but there is a kicker. You want to package them and start both of them as just one project.

Well, you’re in luck! This blog is going to take a couple of simple projects and combine them into one project. Lace up your boots and get ready to React!

Using Apache POI With Protected Excel Files

Jonny Hackett Development Technology, Java, Spring Batch 1 Comment

While working on a recent project at a client, we had the opportunity to refactor some data extracts that were using a commercial Excel writing library, which we then converted to using the Apache POI Library for Excel. These data extracts were reports that included some calculated values, and depending on the client, were required to be password protected. When completed, the reports would be emailed to the recipients configured for each client.

In this post, we discuss the challenge of delivering protected Microsoft documents via email. We introduce a Java code solution for emailing password-protected Excel files when using the Apache POI Library.

Some of the required calculations we chose to implement using Excel formulas. Implementing formulas wasn’t a hard task and worked for what was needed.

AWS SNS Push Notifications

Matt McCandless AWS, Cloud, Development Technology, Java Leave a Comment

Have you ever received endless notifications from the latest application you just downloaded? For example, a bank application that tells you your balance is less than $50. It is likely a message sent directly to your phone through Apple Push Notification Service, Firebase Cloud Messaging, or some other like service.

While you can use any of these services directly, there is a lot to gain by using something like AWS SNS to manage, send, and organize your notifications.

In this post, we show an example of the Push Notification feature of Amazon Simple Notification Service (SNS) using Firebase to handle the iOS and Android messages. Code examples are in Java using Eclipse.

Do note that this blog is solely focused on Push Notification feature of SNS. Keep in mind that SNS can be used for email and SMS messaging, but for brevity, we will steer clear of those.

Java Development Using Visual Studio Code

Todd Horn Design, Dev Methodologies, Java, Programming Leave a Comment

Over the last few years, I have worked on several .NET and JavaScript projects. My go-to IDE for Angular, Node, and (in starting to learn) React has been Visual Studio Code, along with Visual Studio Enterprise for C#.

Recently, I started on a new team and project that was in Java. Our initial thought was to switch back over to Spring Tool Suite or IntelliJ. But, there are some really good extensions now for Java in VS Code that made that transition unnecessary. So we decided to take a look at what Visual Studio code could do for us – we were very pleasantly surprised!

In this post, I provide links and information to get you started down the right path for Java in Visual Studio Code.

Java-Based UI Frameworks

Rik Scarborough Java, Programming 1 Comment

In today’s development environment, there is an abundance of frameworks that we can choose from for front-end or user interface (UI) work.

I was recently talking with a friend about UI development. He has also been a programmer since programming was considered an arcane art (when those of us that did it were considered like Gandalf the Grey facing the Balrog). Or maybe we just saw ourselves that way. Regardless, both of us have been Java programmers for a great deal of that time.

We both lamented the fact that it was a context switch to go from coding most of our projects in Java, then needing to switch to JavaScript for the front end.

Based on conversations I’ve seen online, several readers are warming up their keyboards to chide me for complaining about having to code in JavaScript. Keep your keys cool, both of us and our co-workers are experienced in, and happy to write in, JavaScript and any of its frameworks for our clients. But using JavaScript isn’t always the best approach.

 In this post, we introduce two frameworks that allow you to code your user interface in Java: GWT & Vaadin…