Frameworks

http://jakarta.apache.org/jetspeed/http://jakarta.apache.org/struts/http://www.enhydra.orgwww.openuss.org

Framework

Jetspeed

Konfigurierbare Portale

Technologie: Servlet, JSP

Installation: Kopieren von jetspeed.war in Servlet,JSP - Container

http://qld.ieaust.org.au/jetspeed/

Hello World Portletpackage com.bluesunrise.portal.portlets; import org.apache.jetspeed.portal.portlets.AbstractPortlet;import org.apache.turbine.util.RunData;import org.apache.ecs.ConcreteElement;import org.apache.ecs.StringElement; public class HelloWorldPortlet extends AbstractPortlet{ public ConcreteElement getContent (RunData runData) { return (new StringElement ("Hello World!")); }}

WEB-INF\conf

<?xml version="1.0" encoding="UTF-8"?><registry> <portlet-entry name="HelloWorld" hidden="false" type="instance"

application="false"> <meta-info> <title>HelloWorld</title> <description>Portlet How To Example 1 – Hello World</description> </meta-info> <classname>com.bluesunrise.portal.portlets.HelloWorldPortlet

</classname> <media-type ref="html"/> </portlet-entry></registry>

Struts

dynamische Webanwendungen nach Model-Controller-Viewer Paradigma

Technologie: Servlet, JSP

Installation: Kopieren von jetspeed.war in Servlet,JSP - Container

MVC Pattern

Struts-Umfang

Ein Controller-Servlet, das die REQUESTS an zuständige Action-Klassen weiterleitet.

JSP-TagLibs & Hilfsklassen

Utility-Klassen für XML, Internationalisierung,automatische Erzeugung von Properties.

Action Object (Controller)

Funktionen: Antworten, Request weiterleitenoder Bean initialisieren und z.B. ein

Gegenstand einfügen.

Formular Bean

- Speicherung der Daten- Validierung- Wiederherstellung des Formulars

Use Case

Tag Bibliotheken

Custom tagsThere are four JSP tag libraries that Struts includes:

1. The HTML tag library, which includes tags for describing dynamic pages, especially forms.

2. The beans tag library, which provides additional tags for providing improved access to Java beans and additional support for internationalization.

3. The logic tag library, which provides tags that support conditional execution and looping.

4. The template tag library for producing and using common JSP templates in multiple pages.

TagLib Bsp: Formular

JSP:<input type="text" name="amount" value="<

%= bean.getFirstName() %>">

Struts html TagLib<html:text property="amount"/>

http://www.enhydra.org

Architektur

Architektur II

Admin Interface

XMLCWelcome.html<CENTER>The current time is <span id="Time">1/1/00 00:00:00 Oh no!</span>.</CENTER>

XMLC JavaClass WelcomeHTML mit setTextTime.class

Welcome.javaString now = new Date().toString();WelcomeHTML welcome =(WelcomeHTML)comms.xmlcFactory.create(welcomeHTML.class);welcome.setTextTime(now);comms.response.writeHTML(welcome);

http://openuss.sourceforge.net

Installation

Praktikum1. Cocoon Übung beenden2. hello-world portlet in Jetspeed Portal