OAuth2 is a frequently used standard for authorization and with Spring Boot it is easy to set up authorization and resource server in no time. In the following short tutorial I’d like to demonstrate how to set up an OAuth2 authorization server as well as a connected and secured resource server within a few minutes using Java, Maven and Spring Boot. Figure 1. OAuth2 Flow with Spring Boot in Action...
Having written two articles about different websocket based chat server implementations in Java, I was recently asked how an implementation of the client side would look like in Java. That’s why I added this article to demonstrate how to create a websocket chat client applications within a few steps with the Java API for Websocket. In the following tutorial, we’re going to write a text-based chat client for the console first and afterwards we’re going to program a chat client with a graphical user interface, implemented in JavaFX. ...
Apache Camel not only is one of my favourite frameworks ever but it also allows the humble developer to create a full blown chat bot within a few lines of code and using the Camel XMPP component. In the following tutorial, we’re going to create a simple chat bot and since Atlassian’s HipChat basic plan is now free for unlimited users, we’re using HipChat as our play- and testing ground for the bot. ...