The servlet classes that are provided with IBM Toolbox for Java work with the access classes, which are located on the webserver, to give you access to information located on the iSeries server. You decide how to use the servlet classes to assist you with your own servlet projects.
The following diagram shows how the servlet classes work between the browser,
webserver, and iSeries data. A browser connects to the webserver that is running
the servlet. jt400Servlet.jar
and jt400.jar files
reside on the webserver because the servlet classes use some of the access classes
to retrieve the data and the HTML classes to present the data. The webserver
is connected to the iSeries system where the data is.
Figure 1: How servlets work
There are four types of servlet classes included with IBM Toolbox for Java:
Note: The jt400Servlet.jar file includes both the HTML
and Servlet classes. You
must update your CLASSPATH to point to both jt400Servlet.jar and jt400.jar if
you want to use classes in the com.ibm.as400.util.html and com.ibm.as400.util.servlet
packages.
For more information about servlets in general, see the reference section.