Servlex is an open-source implementation of the EXPath Webapp specification, based on Saxon and Calabash as its XSLT, XQuery and XProc processors. It is developed as a Java EE application (based only on the Servlets technology).

To install it, just deploy the WAR file in your servlet container. If you are looking for a container, you can use Tomcat from Apache which installs easily on all usual OSes, and provide a simple administration interface in HTML (just locate the WAR file on your system and press "Deploy").

To finish the install, you have to make sure the property org.expath.servlex.repo.dir is correctly set to a directory where the webapps will be installed. For instance in Tomcat, by adding in [tomcat]/conf/catalina.properties a property definition, i.e. a line like: org.expath.servlex.repo.dir=/usr/expath/servlex/repo. This directory must exist and be empty.

Once installed, you can access the Servlex admin interface at, say, http://localhost:8080/servlex/manager (assuming Tomcat is running on the port 8080). From there you can deploy the sample web application in the release, hello-world-0.3.xaw, by filling in the form. Go to http://localhost:8080/servlex/hello-world/ to access the example once installed. The sources are available in the dir hello-world/src/.

This sample application is just three forms, sending a string to either an XSLT function, an XQuery function or an XProc step, which in turn displays a page based on this parameter. You can use the tool http://h2oconsulting.be/tools/dump to display the XML representation of the HTTP request which is send to the XSLT, XQuery and/or XProc components in a web application.

Some docs about Servlex are also available on the EXPath's wiki.