1. Web Server Programming 3. Server side includes

2. HTML+ (‘hole’) technologies Uses ‘HTML+”, HTML (or XML) extended with code. Very many different varieties. SSI (Server Side Includes) (Apache) PHP (‘Personal Home Page’) HTML + code (SSI,PHP,ASP, etc.)

3. Server Side Includes Program fragments mixed with text Allow parts of documents to be generated dynamically Executed by server (not by client)

4. Server Side Includes SSI ( http://httpd.apache.org/docs/mod/mod_include.html ) http://httpd.apache.org/docs/mod/mod_include.html PHP (http://www.php.net/)http://www.php.net/ ASP ( http://stardeveloper.com:8080/articles/041600-1.shtml ) http://stardeveloper.com:8080/articles/041600-1.shtml JSP (http://java.sun.com/products/jsp/index.html)http://java.sun.com/products/jsp/index.html XSP (http://xml.apache.org/cocoon/xsp.html)http://xml.apache.org/cocoon/xsp.html ColdFusion ( http://www.macromedia.com/software/coldfusion /) http://www.macromedia.com/software/coldfusion /

5. Principles & Implementations Reinier

6. JSP SUN standard For HTML or XML Processing instruction tags XML extensions: –predefined ‘ ’, etc. –custom Uses JAVA Gives access to Servlet packages

7. Most Important JSP Tags

8. HTML Interleaving <a href= >text

9. Implicit Objects config – ServletConfig object request – ServletRequest object response – ServletResponse object application – ServletContext object session – HttpSession object out – Writer for output data

10. JSP + XML Alternative syntax: –JSP: –XML: a = b; Tag libraries – – … Directives –<jsp:plugin type=“applet” code=“xyz” …

11. ASP Microsoft product Extends HTML pages Tags: Uses VBScript, PerlScript (=Perl) or Jscript Built-in objects: Application, ASPError, Request, Response, Server, Session

12. ASP versus JSP ASP Microsoft license IIS or PWS Interpreted ActiveX components HTML+ Fixed tags JSP SUN open standard Apache, etc. Compiled (JIT) JavaBeans HTML+, XML Extensible tags

13. Assignment 3 Translate servlet WCHelp to a JSP page in such a way that each time it is activated a different text is shown.

14. XML-based Web Programming WSDL: Web Services Description Language (services + ports + messages) UDDI: Universal Description, Discovery and Integration (registry) XML-based Remote Procedure Calls (SOAP) (protocol)

15. Cocoon Uses XML data Uses XSLT transformations Pipelining of operations

16. More Information J2EE tutorial: http://java.sun.com/j2ee/1.4/docs/tutorial/doc/inde x.html Servlet API: http://java.sun.com/j2ee/1.4/docs/api/index.html JSP specification: http://java.sun.com/products/jsp/index.jsp#specs