Java Platform, Enterprise Edition (Java EE) is the industry standard for building web and enterprise applications. Utilize the new lightweight Java EE 6 Web Profile to create next-generation Web applications, and the full power of the Java EE 6 platform for enterprise applications. Glassfish is the open-source Java EE server, downloadable for free. Users can freely use the software to build any types of business applications.
Learn the basics concepts of Java EE platform. Some of the key concepts include Java Persistence API for database integration, EJB for security and transactions, JAX-RS for Restful web-services, servlets and JavaServer Pages. The article Java Technology Terminology has easy to scan definitions. The Java Tutorials has definitions and code samples.
Build a First Java EE Application
Create simple Java EE 6 applications using NetBeans IDE. Java Server Page (JSP), Servlets and Enterprise Java Beans (EJB) are key concepts to build this application. The GlassFish community website offers get started tutorials. The below video is the first video tutorial in the series on getting started with Java EE and Glashfish using NetBeans.
Build a simple web application to send electronic mails with the JavaMail Delivers article in Java Magazine (issue March/April 2012, page 24). This tutorial teaches about the Java Mail API and e-mail protocols. Included are code example and the full source code for the application. Access to the Java Magazine is free with an email address.
Create an online auction service (like e-Bay) with the series of three tutorials about the “Introduction to RESTful Web Services” in the Java Magazine (Premier, January and March issues). Learn with this simple example how REST services, Java APIs for XML, hypertext transfer protocol (HTTP) and more come together to create the day-to-day web applications.
Java offers a number of frameworks with libraries, templates and reusable codes helping beginners and professionals to develop applications in Java. Java EE patterns and best practices are a collection of samples and reusable templates demonstrating patterns, approaches and architectural ideas for Java EE 5 and 6.
JavaOne website offers Java development learning content from the week-long Java conference. It has a mix of hands-on-labs, tutorials, and conference sessions, representing hours of great learning content for free. Java EE sessions: - Developing JAX-RS Web Applications Utilizing Server-Sent Events and WebSocket - Real-world Java EE 6 Tutorial - Beautiful REST and JSON APIs with Java –RS and Jersey
Oracle Developer Days are taking place around the world. Check the upcoming events to attend an event in your area. They are free but space is limited.