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The web-apps.xml File and Virtual Servers

16 iPlanet Web Server, Enterprise Edition Programmer’s Guide to Servlets • May 2001

The web-apps.xml File and Virtual Servers

The web-apps.xml file defines contexts for a set of web applications running in a

virtual server. The context information includes a context path of the web

application and other properties such as how it handles session management or

authentication.

The

web-apps.xml file follows the standard J2EE deployment descriptor format: a

well-formed .XML document specified by a

.dtd file. The web-apps.xml file

contains a set of web applications defined by their context path and physical

location.

Each web application may also define a number of configuration elements specific

to iPlanet Web Server that customize how the application is serviced. For example,

a web application can define pluggable session management or specify a java

compiler. The

web-apps.xml file allows users to define a set of global

configuration elements and share (or override) them across multiple web

applications.

Each

web-apps.xml file must be referenced in the server.xml file, which defines

virtual servers. For more information about

server.xml, see the NSAPI

Programmer’s Guide for iPlanet Web Server.

The Default Context for a Virtual Server

When you create a new virtual server, an empty web-apps.xml file is created. You

can use the default context that is created automatically, or you can create your

own by modifying the

web-apps.xml file.

If a

servlets.properties file is present in the default virtual server (in the

config directory of the server instance), an iPlanet Web Server 4.x servlet context is

created instead of a web application context. For more information about legacy

configuration, see Chapter 8, “Legacy Servlet and JSP Configuration.”

Example server.xml File

The server.xml file contains two variables, webapps_enable and webapps_file,

that are relevant to web applications.

webapps_enable A true or false variable that allows you to enable or disable

web applications for a virtual server. If not present in a virtual

server definition, web applications are enabled by default.

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