Markus Hjort Reaktor Innovations Java Web Development T-111.4360 suunnittelu @ HUT 4.3.2008.
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Transcript of Markus Hjort Reaktor Innovations Java Web Development T-111.4360 suunnittelu @ HUT 4.3.2008.
Markus HjortReaktor Innovations
Java WebDevelopment
T-111.4360 WWW-palvelun suunnittelu @ HUT 4.3.2008
Goals Tonight
I hope you all get Short introduction to Java Web Development Understanding how Java tries to solve real world
problems within web development!
The Big Picture
Standards
Java Applets Java Servlets Java Server Pages (JSP) Java Server Faces (JSF) Java Portlets
Open Source Frameworks
Struts WebWork GWT (Google Web Toolkit) Tapestry Wicket ...
Servlet Containers (Application Servers)
Tomcat Jetty Bea WebLogic IBM WebSphere Caucho Resin ...
Typical applications
Static web sites Dynamic web sites Web-based Products
The Challenges of Web Development*
Web interfaces change frequently Web interfaces involve complex markup Web interfaces use a very different
model compared to traditional Uis in languages such as Java
* Rod Johnson: J2EE Design and development
The Challenges of Web Development
HTTP requests can carry only string parameters
Web interfaces make it difficult to validate user input, as we have limited control over over the client browser
HTML offers a limited choice of UI controls
The Challenges of Web Development
Ensuring that a web site looks right and works correctly in all all common browsers can be difficult
There are many efficiency considerations
Web interfaces are relatively hard to test
Lessons Learned In Java Web
Development
Epic fails
The shortcomings of Servlet-only solutions “JSP Model 1” Architecture
OO is important!
Reuse
Testability
Model View Controller(MVC)
Front Controller Pattern
Controller uses model for business logic Controller forwards to view View shows model values
ComponentFrameworks
Html Components
Links Labels Images ... You can easily create your own custom
components
Thank you!
Links
JSP Tutorial: http://www.jsptut.com/
Wicket: http://apache.wicket.org/
MVC: http://en.wikipedia.org/wiki/Model-view-controller
JDBC (for database access): http://java.sun.com/docs/books/tutorial/jdbc/overview/index.html