Unlike <h:commandLink/> the <h:outputLink/> doesn’t generate JavaScript to make the link act like a submit button. The <h:outputLink/> component generates an HTML anchor element and its value attribute used for the anchor’s href attribute, and the contents of the <h:outputLink/> body are used to populate the body of the anchor element.
The using of <h:outputLink/> component does has the following uses:
- Use the <h:outputLink/> component to create an anchor link for linking an external address.
- Use the <h:outputLink/> component to create an anchor link for linking a parameterized external address.
- Use the <h:outputLink/> component to create an anchor link for linking an internal resources (images,JavaScript, etc ..)
- Use the <h:outputLink/> component to create an anchor link for linking an internal pages.
- Use the <h:outputlink/> component to create an anchor link for internal link (#Identifier).
Also Read:
1. The View
index.xhtml
[code lang=”xml”]
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jsp/jstl/core">
<h:form prependId="false">
<h1>
<h:outputText value="JavaBeat JSF 2.2 Examples" />
</h1>
<h2>
<h:outputText value="OutputLink Example" />
</h2>
<table>
<tr>
<td>
Go To JavaBeat Site
</td>
<td colspan="2">
<h:outputLink value="https://javabeat.net" >
<h:outputText value="Visit JavaBeat Site"></h:outputText>
</h:outputLink>
</td>
</tr>
<tr>
<td>
Search About JSF Posts Inside JavaBeat
</td>
<td colspan="2">
<h:outputLink value="https://javabeat.net" >
<h:outputText value="Visit JavaBeat Site"/>
<f:param value="JSF" name="s"/>
</h:outputLink>
</td>
</tr>
<tr>
<td>
Navigate Into Internal Address Page
</td>
<td colspan="2">
<h:outputLink value="internalAddress.xhtml" >
<h:outputText value="Visit Internal Address"></h:outputText>
</h:outputLink>
</td>
</tr>
<tr>
<td>
Access The Image
</td>
<td colspan="2">
<h:outputLink value="resources/images/JSF-Thumbnail.png" >
<h:outputText value="See JSF Image"></h:outputText>
</h:outputLink>
</td>
</tr>
<tr>
<td>
Go To Internal Link OutputText
</td>
<td colspan="2">
<h:outputLink value="#internalLink" >
<h:outputText value="Go To The Internal Index At The Same Page"></h:outputText>
</h:outputLink>
</td>
</tr>
</table>
<c:forEach var="i" begin="1" end="100">
<br/>
</c:forEach>
<h:outputText id="internalLink" value="Internal Link"/>
</h:form>
</html>
[/code]
internalAddress.xhtml
[code lang=”xml”]
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h1>
<h:outputText value="JavaBeat JSF 2.2 Examples" />
</h1>
<h2>
<h:outputText value="OutputLink Example" />
</h2>
<h:outputText value="This is an Internal Address"/>
</html>
[/code]
2. The Deployment Descriptor (web.xml)
web.xml
[code lang=”xml”]
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5" metadata-complete="true">
<context-param>
<description>State saving method: ‘client’ or ‘server’ (=default). See JSF Specification 2.5.2</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.faces.application.CONFIG_FILES</param-name>
<param-value>/WEB-INF/faces-config.xml</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
</web-app>
[/code]
3. Directory Structure
The directory structure for the deployed application has the form that explained at the following snapshot.
4. JSF 2 OutputLink Demo
The below snapshot will demonstrate the all possibilities using of <h:outputLink/>.
- The first link should lead us for https://javabeat.net
- The second link should lead us for https://javabeat.net/?s=JSF
- The third link should lead us for internalAddress.xhtml deployed page.
- The fourth link should lead us for a deployed image.
- The fifth link should lead us for internal link located on the same page.
[wpdm_file id=15]
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