Java Open Source Projects Directory

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J2EE Frameworks


Seam is an open source development platform for building rich Internet applications in Java. Seam integrates technologies such as Asynchronous JavaScript and XML (AJAX), JavaServer Faces (JSF), Java Persistence (JPA), Enterprise Java Beans (EJB 3.0) and Business Process Management (BPM) into a unified full-stack solution, complete with sophisticated tooling.



jWebApp is a J2EE Servlet-based Model-View-Controller framework that allows you to use anything you like for the Model and View. jWebApp allows independence in model and view technologies. You can use any model/business layer technologies, any database-access technologies, any web-authoring technologies, and plain old HTML and HTML forms.



Expresso is an open standards-based, enterprise-strength J2EE architectural framework for developing database-driven web applications based on open standards.



Jdon Framework is the combination of Domain Drive Development( Ruby on Rails that is simple and rapid but not java language) and Ioc/AOP components (Spring that is very agility but has complicated XML configuration) . Jdon Framework combines with rapidity and agility for your web application architecture. and seamlessly supports two service architecture types: JavaBeans(POJO) or EJB. It can easily migrate POJO to EJB, or integrate legacy EJB systems . Jdon Framework Features: 1. All components can be replaced, even the framework itself. 2. Support the default implementations for CRUD and Master-details display. 3. Improve performance of the framework and its applications by plug-in cache. 4. Provide the session function in micro container, application component can be stateful. Jdon Framework = Ioc(pico) + AOP( simple ) + CRUD + Cache



Build on top of JAAS, for J2EE web applications. his goal is to provide for webapp developers, an easy way to manage authentication and authorizations.



Jt1.2 has been released. Jt is a lightweight pattern oriented framework for the rapid implementation of J2EE applications. Jt has been utilized in several large mission critical systems. Jt implements many well-known patterns including Data Access Objects (DAO). It features messages, attributes, logging/debugging capabilities, resource loading, etc. This framework supports several J2EE technologies including Java Server Pages (JSPs), JDBC, EJBs, JavaMail, XML and Web Services. Jt1.2 features support for J2EE Enterprise Java Beans (EJB) via Jt Adapters. EJB clients are able to gain transparent access to remote framework objects. This simplifies the development of EJB applications: no need to deal with the complexities of EJB application development (deployment descriptors, Home/Remote interfaces, etc). An implementation of the J2EE Service Locator pattern is also provided. Additional features include:

 * Jt is a pattern oriented framework. Jt implements many well-known design patterns. This includes Data Access Objects (DAO), adapters for several J2EE API, etc.
 * Jt implements a messaging pattern/API: framework objects are able to interchange information and perform computations by sending, receiving and processing messages. The messaging paradigm provides additional encapsulation and software simplicity. The messaging API implemented by the Jt Framework is very simple: very few calls are required to create, manipulate and destroy messages and objects. On the other hand, this API is very powerful.
 * Lightweight/fast framework for rapid development. The framework can be easily extended by adding additional Jt adapters and helpers.
 * Support for the JDBC API via a JDBC adapter.
 * JavaMail API support via the implementation of a JavaMail adapter
 * Web Services support via the implementation of a Web Services adapter. The Jt messaging API greatly simplifies the development of web services.
 * Easy customization of framework applications. This is done via resource files: object attributes can be automatically loaded from a resource file.
 * Java Server Pages (JSP) support.
 * Support for the XML API via XML helpers. Framework objects can be converted to/from the XML format.
 * Built-in logging/debugging capabilities. Messages between framework objects are automatically logged. This simplifies the debugging and testing tasks.
 * Built-in testing capabilities.
 * The Jt Framework provides a consistent way of handling and logging application errors and exceptions.
 * Proven technology. The Jt framework has been used for the development of several large enterprise applications.
 * Cross-platform, implemented using JavaTM technology.
 * Runs on any J2EE 1.4 compatible application server. For additional information please refer to



AppFuse is an open source project/application that uses best-of-breed Java open source tools to help you develop web applications quickly and efficiently. Not only does it provide documentation about developing lightweight POJO-based applications, but it comes out of the box with features that many applications need, including features for authentication and authorization, user management, Remember Me, password hint, signup, SSL switching, e-mail, URL rewriting, skinnability/page decoration/templated-layout and file upload. This out-of-the-box functionality is one of the main features in AppFuse that separates it from the other "CRUD Generation" frameworks, including Ruby on Rails, Trails, and Grails.



This framework is based on the MVC architecture (model-view-controller), but in contrast with other MVC frameworks, most of its parts are highly reusable, meaning that your programming effort is minimized whenever possible, avoiding unnecessary programming. Many tasks are accomplished by simply configuring some XML files and templates. Presentation templates are completely separated from logic. Dinamica does not use any template language nor JSP pages technology, just plain text files with some special markers that will be replaced by the actual data.


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