JSF Global Navigation Example
This is a part of navigation in which one page is
navigated to others. This section gives you something about the JSF Global
navigation which makes the direct navigation between two or more pages. There is
an example of Global Navigation in JSF has been implemented with the complete
downloadable solutions like the example code and the illustration about the
procedure of deployment of example. This type of the navigation navigate
directly to the other sources which have to mentioned as it is.
Here, you will find the code of the example and can get
more about the global navigation in the JSF application in very efficient
manner. This type of navigation does not works like an anchor tag (<a href=""></a>)
of HTML (Hyper Text Markup Language). This type of navigation is shown by
implementing the example in this section. There is the page that has to be
referred in the example has been mentioned in the faces-config.xml file that is
is handled by the action of the command button of the form from the page. You
can see that the module of the code which is written in the faces-config.xml
file that is like as follows:
<navigation-rule>
<from-view-id>*</from-view-id>
<navigation-case>
<from-outcome>secondpage</from-outcome>
<to-view-id>/secondpage.jsp</to-view-id>
</navigation-case>
</navigation-rule>
Above code makes the navigation rule in which the page and the action is
mentioned. As you can see the value of the <from-view-id></from-view-id>
is the "*" and the value of the <from-outcome></from-outcome> tage is "secondpage"
which is the action of the command button and referred page is mentioned
as the value of the <to-view-id></to-view-id> tag that mean the
secondpage.jsp page can be referred on the occurring of the action "secondpage"
from any page involved in the application which is determined by the "*"
value.
There is an example has been given in this section for
illustrating the topic more conveniently. This example shows command button
labeled with the text "Go to second page". When you will click on the
button pages is referred to an another page. This application uses some files
for completion the application as given as below:
- firstpage.jsp
- secondpage.jsp
Program Output as follows:
When you will click on the command button component it will show the output
as follows:
Code for the firstpage.jsp file:
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<f:view>
<html>
<head><title>Navigation Page</title></head>
<body>
<h1>This is the first page.</h1>
<h:form>
<h:commandButton value="Go to second page" action="secondpage" />
</h:form>
</body>
</html>
</f:view>
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Code for the secondpage.jsp file:
<h4>This page is navigated by the firstpage.jsp that has been mentioned in the
faces-config.xml file.</h4>
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Code for the faces-config.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer
Faces Config 1.0//EN" "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
<faces-config>
<navigation-rule>
<from-view-id>*</from-view-id>
<navigation-case>
<from-outcome>secondpage</from-outcome>
<to-view-id>/secondpage.jsp</to-view-id>
</navigation-case>
</navigation-rule>
</faces-config>
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Code for the web.xml file:
<?xml version="1.0"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup> 1 </load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
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Complete Example.
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