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1 -8*6-DYD6HPLQDU 6HUYOHW$UFKLWHFWXUHV 5DLQHU+LVV$QGUHDV.DSS 6<6725$*

2 $JHQGD a Motivation a Projects a ALF a Desk Profile a Travel Administrator a Java Web Application Architecture a Technology a Experiences a Resources a Discussion 2

3 0RWLYDWLRQ a Servlets? Server-side Java! a Web Applications a Document-centric a Data-centric a Extend your web server 3

4 3URMHFWV $/) a Customer: UBS Private Banking a potential Intranet users????? Internet Users a Business Use a Fund Information System a PR for Investment Funds in the Internet a Support for the Customer Advisors a Status: before shipping a Development costs: 15 Months (3P x 5) 4

5 3URMHFWV $/) %DVLF5HTXLUHPHQWV a Inter- and Intranet application a Pure HTML, no Frames, no Java Script, no Applets a High performance a User customizable view on individual portfolios a Proprietary user authentication and authorization a Easy customizable application, admin-tool (fat client using RMI) a Multilingual a Scalable 'HWDLOHG5HTXLUHPHQWV a RAW (2 days) a GUI-Prototype (HTML-files) 5

6 3URMHFWV $/) a 50 Classes 15 Servlets a Architecture: 3-tier a Development on NT, production and testing on Unix (Sun Solaris) a JDBC with native Sybase Drivers (JCONNECT: pure Java) a Reuse of code and know-how from Desk Profile 6

7 3URMHFWV $/) a Demonstration 11

8 3URMHFWV 'HVN3URILOH a Technology exploration project a First server-side Java project in SYSTOR a HTML prototyping a 64 Classes 14 Servlets a Architecture 3-tier a Platform a Development costs: 28 months (4x7) 7

9 3URMHFWV 'HVN3URILOH a Customer UBS Private Banking a 500 users customers a Business use a Reporting a Tracking customer information a PB performance monitoring a Status: maintenance a Know how and code reuse in ALF 8

10 3URMHFWV 7UDYHO$GPLQLVWUDWRU a Client UBS Private Banking a 500 users a Business use a Travel calendar a Travel approval workflow a Monitoring travel costs a Reference project: Desk Profile 9

11 3URMHFWV 7UDYHO$GPLQLVWUDWRU a GUI: Prototyping approach a Status: before shipping a 90 classes 32 Servlets a Architecture: 3-tier a Platform a Development costs: 16 months (4x4) a Heavy reuse of know-how and Java code 10

12 7HFKQRORJ\ -DYD a Servlets: Java Standard Extension API a Java on Server-side is a Robust a Scalable a Open a Fast a Portable a Well integrated a Extensible & flexible 12

13 7HFKQRORJ\ 6\VWHP$UFKLWHFWXUH a Web browser as client with HTML and JavaScript a Java application server with dynamic and static content a Database server and enterprise services Web Browser Java Application Server Web Server Data Server Batch Processing Database Server Services CORBA FTP TP Mail Security Desktop Tier Intermediate Tier Enterprise Tier 13

14 7HFKQRORJ\ 6HUYOHW$UFKLWHFWXUH 1HWVFDSH(QWHUSULVH6HUYHU $SDFKH 1HWVFDSH:$, &25%$ 7&3,3 1HWVFDSH16$3, $SDFKH-6HUY 3URWRFRO 6XQ -DYD:HE6HUYHU &25%$ 6HUYOHW$3, 5XQWLPH 6HUYOHWV $SSOLFDWLRQ 'DWD$FFHVV 14

15 7HFKQRORJ\ $SSOLFDWLRQ6HUYHU$UFKLWHFWXUH Java Application Server HTMLPresentation Http SSL Web Server Servlet Engine Servlet API FormController Domain Business Objects JDBC MQS Sockets Configuration Database Access LDAP Intermediate Tier 15

16 7HFKQRORJ\ 6HUYOHW7\SHVDQG,VVXHV a Simple Servlet a Servlet chain a Server-side Include Servlets (SSI) a Java Server Pages (JSP) a Single-threaded / multi-threaded a Stateless http / session handling 16

17 7HFKQRORJ\ 6HUYOHW*UDQXODULW\ Use Case Servlet Web Page Servlet View /Controller Servlet 17

18 ([SHULHQFH 3HUIRUPDQFH &*,&YHUVXV-DYD6HUYOHWV $YHUDJH5HVSRQVHWLPHPV C++ Java Servlet LPXOWDQHRXV5HTXHVWV 18

19 ([SHULHQFH a Problems a Good knowledge of HTML, JavaScript, Java, SQL a Configuration a Debugging a Risks a Simple Servlet is not a simple solution a Bad software design a JSP: embedded Java code is difficult to support and maintain a GUI and printing requirements a Requires broad technological background 19

20 ([SHULHQFH a Benefits a Fast & lightweight a Reusable components a Stable a Open a Portable a Easy maintainable 20

21 5HVRXUFHV a Books a Jason Hunter: Java Servlet Programming ISBN X a Karl Moss: Java Servlets ISBN: a Links a a a 21

22 4 $ UDLQHUKLVV#V\VWRUFRP DQGUHDVNDSS#V\VWRUFRP 6<6725$*