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Intro to J avaserver Faces

This article provides a comprehensive introduction to JavaServer Faces (JSF), a standard API for creating Java web application GUIs. It covers the architecture of JSF, its advantages and disadvantages, and how to set up a JSF environment using Tomcat and standard JDBC. The article explains the MVC design pattern, event-driven model, and includes examples of common UI components, form validation, and event handling. By the end, readers will understand how JSF can simplify the development of complex web applications by integrating various technologies.

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Intro to J avaserver Faces

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  1. Tony Nguyen Intro to Javaserver Faces

  2. Architecture • Advantages • Disadvantages • Setup JSF Environment • JSF & Database • Conclusion • Demo

  3. Architecture • A standard API for creating Java Web Application GUIs. • Allow Java programmers to develop application without HTTP details and integrate it with user interface through event-driven model. • JSF based on Model-View-Controller (MVC) design pattern. • Drag and drop UI components to build web application. (EIS)

  4. Advantages • Less code. • Custom GUI controls. • Form validation. • Event handling. • Managed beans. • Expression Language.

  5. Disadvantages • Less transparent. • Harder to learn. • Not enough documentation. • Rigid approach. • Undeveloped tool support.

  6. JSF & Event Driven • <h:form> • <!-- For non graphical browsers --> • <p>Example of <code>commandLink</code></p> • <h:panelGrid id="links" columns="4" • summary="#{bundle.chooseLocale}" • title="#{bundle.chooseLocale}" > • <h:commandLink id="NAmerica" action="storeFront" • actionListener="#{carstore.chooseLocaleFromLink}"> • <h:outputText value="#{bundle.english}" /> • </h:commandLink> • </h:panelGrid> • </h:form>

  7. Expression Language <c:if test=“${result.rowCount == 0}”> Sorry, no products match your criteria </c:if> <c:if test=“${result.rowCount != 0}”> These products were found <ul> <c:forEach items=“${result.rows}” var=“row”> <li>${row.prodName}</li> </c:forEach> </ul> </c:if>

  8. Setup JSF Environment • Java 2 Software Development Kit. • Enabled web-server Tomcat 5. • JSF 1.0 implementation(Sun’s Reference Implementation).

  9. JSF & Database • Standard JDBC • JSTL • Hibernate

  10. Conclusion • JSF can provide many useful features for developing complex GUIs and handling events. • MVC for web development. • Huge industry and vendor support.

  11. References • http://myfaces.apache.org/download.html • http://www.oracle.com/technology/products/jdev/collateral/4gl/papers/JSF_For_4gl.pdf • http://www.roseindia.net/jsf/whatisjsf.shtml • http://jlbtc.eduunix.cn/index/html/java/OReilly.Java.Enterprise.in.a.Nutshell.3rd.Edition.Nov.2005/0596101422/javaentnut3-CHP-5-SECT-3.html • http://www.codeguru.com/cpp/data/mfc_database/sqlserver/article.php/c10079/#more • http://www.geekinterview.com/question_details/36717

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