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a Motivationa Projects

a ALFa Desk Profilea Travel Administrator

a Java Web Application Architecturea Technologya Experiencesa Resourcesa Discussion


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a Servlets? Server-side Java!a Web Applications

a Document-centrica Data-centric

a Extend your web server


3URMHFWV$/)a Customer: UBS Private Banking

a 50’000 potential Intranetusers??’??? Internet Users

a Business Usea Fund Information Systema PR for Investment Funds

in the Interneta Support for the Customer

Advisorsa Status: before shippinga Development costs: 15 Months

(3P x 5)


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a Inter- and Intranet applicationa Pure HTML, no Frames, no Java Script, no Applets

a High performancea User customizable view on individual portfolios

a Proprietary user authentication and authorizationa Easy customizable application, admin-tool (fat client using RMI)a Multilinguala Scalable

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'HWDLOHG�5HTXLUHPHQWV�a RAW (2 days)a GUI-Prototype (HTML-files)


3URMHFWV$/)a 50 Classes

15 Servletsa Architecture: 3-tiera Development on NT,

production and testingon Unix (Sun Solaris)

a JDBC with native SybaseDrivers (JCONNECT: pureJava)

a Reuse of code andknow-how from Desk Profile


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a Demonstration


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a Technologyexploration project

a First server-sideJava project inSYSTOR

a HTML prototypinga 64 Classes

14 Servletsa Architecture 3-tiera Platforma Development costs:

28 months (4x7)


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a Customer UBS Private Bankinga 500 users

230’000 customersa Business use

a Reportinga Tracking customer informationa PB performance monitoring

a Status: maintenancea Know how and code reuse in ALF


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a Client UBS PrivateBanking

a 500 usersa Business use

a Travel calendara Travel approval

workflowa Monitoring travel

costsa Reference project: Desk

Profile


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a GUI: Prototyping approacha Status: before shippinga 90 classes

32 Servletsa Architecture: 3-tiera Platforma Development costs: 16

months (4x4)a Heavy reuse of know-how

and Java code


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a Servlets: Java Standard Extension APIa Java on Server-side is

a Robusta Scalablea Opena Fasta Portablea Well integrateda Extensible & flexible


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a Web browser as client with HTML and JavaScripta Java application server with dynamic and static contenta Database server and enterprise services

Intermediate Tier

Java Application Server

Web Server

Desktop Tier

Web Browser

Enterprise Tier

DatabaseServer

Batch Processing

Data Server

FTP

TP

Security

Mail

CORBA

Services


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Intermediate Tier

Java Application Server

Web Server

Http

SSL

JDBC

Sockets

MQS

LDAP

Ser

vlet

AP

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Ser

vlet

Eng

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Configuration

HTMLPresentation

FormController

Database Access

Domain Business Objects


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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


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Use Case Servlet

View /Controller

ServletWeb Page

Servlet


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100

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Java Servlet


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a Problemsa Good knowledge of HTML, JavaScript, Java, SQLa Configurationa Debugging

a Risksa Simple Servlet is not a simple solutiona Bad software designa JSP: embedded Java code is difficult to support and maintaina GUI and printing requirementsa Requires broad technological background


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a Benefitsa Fast & lightweighta Reusable componentsa Stablea Opena Portablea Easy maintainable


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a Booksa Jason Hunter: Java Servlet Programming ISBN 1-56592-391-Xa Karl Moss: Java Servlets ISBN: 0079137792

a Linksa http://java.sun.com/products/servlet/a http://www.servletcentral.com/a http://www.javaworld.com/common/jw-ti-ssj.html

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jugs servlet architecturesiib file12/07/98 jugs servlet architectures.ppt 5 3urmhfwv $/) a inter-...

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