To run JSP pages, you need an application server that supports JavaServer Pages. Here are some popular choices:
Macromedia JRun for Windows, Mac OS X, Linux, Solaris, or UNIX. You can download a trial version of JRun from the Adobe website at www.adobe.com/go/jrun/.
Tomcat for Windows and UNIX (including Mac OS X). You can download a copy of Tomcat from the Jakarta Project website at http://tomcat.apache.org/. For more information on installing Tomcat on a Macintosh, see the Apple website at http://developer.apple.com/internet/java/tomcat1.html.
After installing a JSP application server, create a root folder for your web application.