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newbie question

tom gong
Ranch Hand

Joined: Jul 15, 2000
Posts: 36
Hi:
following is from sample code:
<html>
<head>
<BASE HREF="<%= request.getScheme() %>://<%= request.getServerName() %>:<%= request.getServerPort() %><%= request.getContextPath() %>/">
</head>
<body>
</body>
</html>
request is a interface, how could it be used without any inplemetation. I did not find any implementation of interface request.
sorry about this question and thanks for help!
tom gong
Tony Alicea
Desperado
Sheriff

Joined: Jan 30, 2000
Posts: 3222
    
    5
The implementation of the interface request is left to the implementors of the Servlet container. So you can always treat it as a "class".
According to Sun:
"The servlet container creates an HttpServletRequest object and passes it as an argument to
the servlet's service methods (doGet, doPost, etc)."

Implementing an Interface in Java is not always the responsibility of the user of an application.


Tony Alicea
Senior Java Web Application Developer, SCPJ2, SCWCD
tom gong
Ranch Hand

Joined: Jul 15, 2000
Posts: 36
Thanks a lot, Tony
your help is appreciated.
tom gong
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: newbie question
 
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