Sun Java System Web Server 7.0 Developer's Guide to Java Web Applications

Registering Servlets

The legacy servlet system used a two-step process of registering servlets ( and mapping them to a URL ( In Sun Java System Web Server 7.0, the servlets must be moved into a web application. These settings will be maintained in the web.xml file of that web application.

A registered servlet has entries in both the and files.

The following example uses a servlet file called BuyNow1A.class, which responds to /buynow. It is assumed that the web application is deployed at '/'

The file containing:

Example 4–1 Registering Servlets Example

servlet.BuyNowServlet.initArgs=arg1=45,arg2=online,arg3="quick shopping"

The file has:


These settings must be translated to a web.xml setting. The setting translates into the servlet element.

The classpath is automated so no classpath setting is necessary. All classes to be used must be in the WEB-INF/classes directory or in a .jar file in the WEB-INF/lib directory of the web application.

The servlet-name element appears between the dots in the file. The code translates to the servlet-class, IntArgs translate to init-params. This entry will translate to the following entry:

<servlet-name> BuyNowServlet </servlet-name>
<servlet-class> BuyNow1A </servlet-class>
				<param-value> arg1 </param-name>
				<param-value> 45 </pram-value>
				<param-name> arg2 </param-name>
				<param-value> online </param-value>
				<param-name> arg3 </param-name>
				<param-value> 'quick shopping" </param-value>

The entries translate to servlet-mapping elements. This entry translates to the following entry:

	<servlet-name> BuyNowServlet </servlet-name>
	<url-pattern> /buynow </url-pattern>

Some other entries in the file map to the web.xml file. This includes the following information: