Beans in JSP

http://courses.coreservlets.com/Course-Materials/pdf/csajsp2/13-JavaBeans.pdf

Java Beans

Bean Properties

Examples

Why Getters and setters?

Reason 1

Reason 2

Reason 3

Basic bean tasks

Where's the advantage?

Where do I put beans?

Explicit type convertion

Implicit type conversion

Simple automatic conversion

Select all

Setting the scope

Page, application

Session, request

Accessing and setting existingbeans

Example

JSP & Beans summary

JSP Expression Language

http://courses.coreservlets.com/Course-Materials/pdf/csajsp2/15-Expression-Language.pdf

JSP Expression Language

Code semplification

Invoking EL

Scope?

Dot and Array notation

Accessing collections

Implicit objects

EL Operators

Activating EL

(Selectively) Deactivate EL

Communication Servlet-JSP

MVC with Servlets and JSP

http://courses.coreservlets.com/Course-Materials/pdf/csajsp2/14-MVC.pdf

Servlets or JSPs?

Servlets or JSPs?

MVC

MVC

MVC misconception

MVC in 6 steps

MVC in 6 steps

Example

Example

Beware of forward!

Forward or redirect?

Example

• See the Bank Balance lookup examplein

http://courses.coreservlets.com/Course-Materials/pdf/csajsp2/14-MVC.pdf

(slide 30-42)