Latest Articles

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

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

Postfix Mail Server configuration tutorial

09 March 2013

In this tutorial you will learn how to deploy a simple configuration of Postfix Mail Server.

Postfix is an open source MTA or SMTP server. In this tutorial we will deploy a very simple configuration of Postfix. We will see in other tutorials how we can deploy more complex configuration includ... Read more

admin configuration linux mail postfix smtp

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

First Spring MVC application tutorial

10 February 2013

In this tutorial you will learn how to create a hello world Spring MVC application by example.

In this tutorial we will create a simple Spring MVC application. We will create a Controller that will handle an HTTP request and then will choose a view to present useful information to the end-user ... Read more

java mvc spring spring-mvc web

Java Enum implementing an Interface

07 February 2013

In this tutorial you will learn how to implement an Interface with an Enum in Java.

Some developers are not aware of this fact but we can implement Interfaces with Enums in Java. This may be useful when we need to implement some business logic that is tightly coupled with a discrimin... Read more

design-patterns java

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: