Latest Articles

Java EE HTML5 WebSockets with multiple clients example

22 August 2013

In this tutorial we will implement a message broadcast sample application using only HTML5 websockets. The server-side will be implemented with Java EE ServerEndpoint.

In the previous tutorial - Java EE HTML5 WebSocket example - we have implemented a simple Java EE WebSockets enabled application where the client sent a simple message to the server over a websocket a... Read more

html5 io java java-ee web websockets

Java EE HTML5 WebSocket example

12 August 2013

In this tutorial we will implement an HTML5 websocket resorting to the Java EE websocket implementation (ServerEndpoint).

The HTML5 specification brought the capability for web browsers to establish full-duplex TCP connections with websocket compliant servers.In other words, browsers are now able to establish a connectio... Read more

html5 io java java-ee web websockets

Java EE CDI ConversationScoped example

13 April 2013

In this tutorial you will learn how to use ConversationScoped CDI beans.

As we have seen previously on Java EE CDI bean scopes CDI provides a set of available built-in bean scopes. One of these scopes is the Conversation scope. In this tutorial we will see how this scope c... Read more

cdi java java-ee tomcat web

Configuring CDI with Tomcat example

23 March 2013

In this tutorial you will learn how to configure Contexts and Dependency Injection (CDI) with Tomcat.

Tomcat is not a full-blown EE container so we must include some required libraries in order to enable CDI support. In this tutorial we will cover CDI configuration in Tomcat and also provide a working... Read more

cdi configuration java java-ee tomcat web

Spring MVC RequestMapping consumes condition example

16 March 2013

In this tutorial you will learn how to use @RequestMapping annotation together with the "consumes" condition to handle distinct HTTP request content-types by distinct Controller methods.

Spring MVC @RequestMapping annotation used in Controller methods allows the developer to define which methods will be used to handle distinct HTTP requests sent by clients based in the request content... Read more

java mvc spring spring-mvc web

JAAS form based authentication in Tomcat example

03 March 2013

In this tutorial you will learn how to configure JAAS form based authentication in Tomcat.

This tutorial will show you how to configure JAAS form based authentication in Tomcat. It will be the second part of other tutorial also available in this website: JAAS authentication in Tomcat exampl... Read more

jaas java security tomcat web

JAAS authentication in Tomcat example

23 February 2013

In this tutorial you will learn how to configure JAAS authentication in Tomcat using the HTTP Basic authentication scheme.

Tomcat provides a default JAAS Realm implementation so developers may implement JAAS Login Modules and easily integrate them with the container. In this tutorial we will implement all the required com... Read more

jaas java security tomcat web

Spring MVC @RequestMapping example

16 February 2013

In this tutorial you will learn how to use @RequestMapping annotation to match URL patterns in different scenarios.

Spring MVC @RequestMapping annotation used in Controllers allow us not only to implement URL pattern matching but also to extract variables from the request URL itself. We will go through different po... Read more

java mvc spring spring-mvc web

About the author

Gonçalo Marques is a Software Engineer with several years of experience in software development and architecture definition. During this period his main focus was delivering software solutions in banking, telecommunications and governmental areas. He created the Bytes Lounge website with one ultimate goal: share his knowledge with the software development community. His main area of expertise is Java and open source.

GitHub profile: https://github.com/gonmarques

He is also the author of the WiFi File Browser Android application: