3.2.3.2  Adding the Servlet to the Repository 

Create a new directory under the src/ directory with the name Rectangle. The directory name 

must be the same as the package name specified in the first line of code of the servlet. Then, 

save the Servlet code presented in Section 3.1.3 under its class name (DrawRectangle.java) in 

the Rectangle directory. Schedule the new directory (this is important: always add directories to 

the repository as well!) and the new file for addition to the CVS repository. 

$ cd src

$ mkdir Rectangle

$ cvs add Rectangle

$ cd Rectangle

$ cvs add DrawRectangle.java

3.2.3.3  Registering the Servlet in web.xml 

Before the new servlet can be executed, it needs to be registered in the Web Application 

Deployment Descriptor web.xml. 

To do this, add the following lines to the web.xml file: 

DrawRectangle

Rectangle.DrawRectangle

DrawRectangle

draw_rectangle.servlet

The  tag defines a new servlet. You must provide a servlet name, which can be chosen 

arbitrarily (it does not necessarily have to be the servlet class name). The  

attribute tells the servlet engine where to find the java class file that contains the servlet byte 

code. Last but not least, you need to define the servlet mapping. (The URL that is received 

through the browser request is mapped to a Java class by the servlet engine). 

A servlet mapping should be provided for each servlet. You may also use wildcards for the URL 

patterns. E.g. *.servlet  would map all URL's ending with .servlet to 

the specified servlet name. 

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