4Building a Minimal Web App with Java EE in Seven Steps
In this chapter, we show how to build a simple Java EE web application using the Java Persistence API (JPA) for object-to-storage mapping and Java Server Faces (JSF) as the user interface (or “view”) technology. Such an application requires a web server that supports the Java EE specifications Java Servlets, Java Expression Language (EL), JPA and JSF, such as the open source web server Tomcat/TomEE66(pronounced “Tommy”). In addition to the Java code executed on the back-end computer that runs the TomEE web server, a Java EE web app also consists of HTML, CSS and possibly some auxiliary JavaScript code that is executed by a web browser running on the user’s front-end computer. Since essentially ...
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