Basic HTML version of Foils prepared July 6 99

Foil 60 Java Web Servers/Servlets

From Use of Java Language in Computational Science DoD Modernization Users Group Conference Monterey -- June 7 99. by Nancy McCracken, Geoffrey C. Fox
1 Java is now being used to develop web servers.
2 Java is also being used as the language to develop server side code for web servers, using the Common Gateway Interface (CGI) of the HTTP protocol. These are called servlets.
  • Servlets follow a standard servlet API defining the interface between the server and the servlet, and are designed to work within the request/response model of HTTP. The servlet API is part of the standard extensions of JDK.
  • Servlets can provide all the services of standard CGI, but are platform-independent, i.e. they can be used with any server implementing the API, and have more state capabilities.
  • More generally, servlets play the role of providing middle-tier services between the client and the back-end applications.
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