Calling a Servlet with a URL (Sun Java System Web Server 6.1 SP11 Programmer's Guide to Web Applications)

Sun Java System Web Server 6.1 SP11 Programmer's Guide to Web Applications

Calling a Servlet with a URL

You can call servlets by using URLs embedded as links in HTML or JSP pages. The format of these URLs is as follows:

http://server:port/context_root/servlet/servlet_name?name=value

The following table describes each URL section. The left column lists the URL elements, and the right column lists descriptions of each URL element.

Table 2–1 URL Fields for Servlets within a Web Application


URL Element	Description
server:port	The IP address (or host name) and optional port number. To access the default web application for a virtual server, specify only this URL section. You do not need to specify the context_root or servlet_name unless you also wish to specify name-value parameters.
context_root	The context path without the leading “/” at which the web application is installed.
`servlet`	Only needed if no `servlet-mapping` is defined in the `web.xml` file.
servlet_name	The `servlet-name` (or `servlet-mapping` if defined) as configured in the `web.xml` file.
?name=value...	Optional servlet name-value parameters.

In this example, leMort is the host name, MortPages is the context root, and calcMortgage is the servlet name:

http://www.leMort.com/MortPages/servlet/calcMortgage?rate=8.0&per=360&bal=180000