ZTemplates
ztemplates is an open source web application framework based on the Java platform 1.5 or later. It is licensed under the Apache 2.0 License.
ztemplates runs in any standard java web application container like Apache Tomcat.
ztemplates extensively uses annotations and so requires almost no configuration. It is centered around urls and allows the definition of url-variables and url-references so the programmer can extract more information from the url than is usually possible.
The ACTIVE part of a ztemplates application is located in callbacks. The callbacks and the sequence in which they are called are defined by the url. The programmer can define before and after callbacks for all actions, url-variables and url-references. They are called in the order in which the corresponding url-variable and url-reference are defined in the url.
The web-page rendering is done with standard technology, like JSP or Apache Velocity. ztemplates chooses the correct rendering technology and template from the annotation the programmer attaches to a plain old java object.
The rendering part and the actions are completely independent of each other.