Communicator e3000 MPE/iX Release 6.5 Express 2 (Software Release C.65.02) (30216-90322)

36 Chapter3

Technical Articles

Java Servlets for MPE/iX

release of Java Servlets for MPE/iX and should not be used.

The jsdk.jar class library ﬁle is installed in /APACHE/PUB/lib for standard Apache and in

/APACHE/SECURE/lib for WebWise.

All servlets use the class deﬁnitions in jsdk.jar. Because the servlet engine is itself a

servlet, the jsdk.jar ﬁle is also required for the servlet engine to run.

The JSDK2.0 API documentation is also distributed in its complete and unmodiﬁed form

with your installation at http://yourhost.com/JSDK2.0/doc/apidoc. This includes:

• a servlet tutorial

• example servlets

• class source code

• servlet API documentation, Version 2.0

Additional components of the JSDK2.0 are available by downloading the entire package

from Sun's site at http://java.sun.com/products/servlet. The JSDK2.0 is not an HP

product and is not supported by HP.

jserv.conf

This is the ﬁrst of three new conﬁguration ﬁles. This conﬁguration ﬁle contains directives

for Apache only and is not read by the servlet engine. It contains directives which, for

example, indicate whether mod_jserv.so should be loaded and whether the servlet engine

will be run automatically or be manually started. Automatic launching of the servlet

engine is not supported on MPE/iX. The ApJServManual directive should always be set to

true:

ApJServManual on

The grammar for this ﬁle follows the grammar used by other Apache conﬁguartion ﬁles:

DirectiveName value

This ﬁle is read once at Apache startup or restart.

jserv.properties

This is the second of three new conﬁguration ﬁles. This ﬁle contains all the properties

required by the servlet engine. Some properties are passed to the Java Virtual Machine

(JVM) and others include various security preferences, settings for internal

communication between the servlet engine and the Apache web server, properties for

enabling logging, and a list of all servlet zones and their respective property ﬁles.

The grammar for this ﬁle follows a grammar similar to Java property ﬁles:

property_name=value, value, …

This ﬁle is read by both mod_jserv and by the servlet engine. It is loaded once at startup,

so changes are available only after restart of the web server and of the JVM.

root.properties

This is the third of three new conﬁguration ﬁles. Each servlet zone requires its own

properties ﬁle. The installation and conﬁguration processes set up one servlet zone called