- JSF Specifications
- JSF is not standalone technology, you have to use it in conjunction with JSPs, Servlets, EJBs
- How to use JSF with Servlets and EJBs: In Servlet or EJB, explicitly create instances of UI components and use the UI classes directly
- JSF with JSPs: Use the JSF custom tag library with JSP
- To use JSF, you need to understand JSF lifecycle: take a look at JSF Lifecycle: Restore view, Apply request values, Process validations, Update model values, Invoke application, Render response
- How to install JSF: Current version of Sun’s Application Server contains JSF and JSTL
- For Tomcat 5.5:
- Download JSF from http://java.sun.com/j2ee/javaserverfaces/download.html and JSTL from http://jakarta.apache.org/taglibs/doc/standard-doc/intro.html.
- Put these Six JSF JARs into your project WEB-INF/lib folder or tomcat lib folder: commons-beanutils.jar, commons-collections.jar, commons-digester.jar, commons-logging.jar, jsf-api.jar, and jsf-impl.jar
- Download JSF Jars
- Put these two JSTL JARs in the same way: jstl.jar and standard.jar
- JSF provides different custom actions as will be provided below:
- You can use these elements/controls/actions to collect user data, to display output, to validate user inputs, control the flow of the application dynamically/statically also, convert data from one type to another.
- HTML Custom Actions
Input: To create input elements
h:inputHidden, h:inputSecret,h:inputText, h:inputTextareaOutput:create output elementsh:message, h:messages,h:outputFormat, h:outputLabel,h:outputLink, h:outputText
Selection: Create selection elements like combo boxesh:selectBooleanCheckbox,h:selectManyCheckbox,h:selectManyListbox,h:selectManyMenu,h:selectOneListbox,h:selectOneMenu,h:selectOneRadio
Commands: Create form submission buttons or links
h:commandButton,h:commandLink
Miscellaneous
h:dataTable, h:form,h:graphicImage, h:panelGrid,h:panelGroup, h:column - JSF Core custom actions:
Converters:Standard
f:convertDateTime,f:convertNumber, f:converter
Listeners:Listener for a component
f:actionListener,f:valueChangeListener
Miscellaneous
f:attribute, f:loadBundle,f:param, f:verbatim
Selection
f:selectItem, f:selectItems
Validators:Standard
f:validateDoubleRange,f:validateLength ,f:validateLongRange ,f:validator
View: Create JSF view or sub-view
f:facet, f:subview, f:view - An example of JSF with JSP with Managed Bean Support
- You need a configuration file like faces-config.xml , or you can use any other file but you have to supply the file name in the web.xml file.
- To use a managed bean, you need to define a managed bean in the JSF configuration file with a name, class, and scope
- Also you need to define navigation rules in the configuration file. A navigation-rule defines the start page, a condition, and which page to navigate to when the condition occurs
- Create the managed bean class
- In your JSP, you should refer to the JSF tag libs and JSTL tag libs by
- Then in the JSP page you will be able to use the JSF tags and the managed beans directly
- A sample example with code
- Video Demonstration of the example JSF application create
- Details about other JSF features like: using managed beans, controlling page navigation, accessing JSF context data in beans, converting data, validating user inputs, using message bundles to support internationalization will be disucssed in another article.
From: http://sitestree.com/?p=4991
Categories:Java Short Notes
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Post Data:2012-10-30 13:33:53
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