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A simple web-app showing how to use dependency injection in JSF managed beans using openejb with tomcat It contains a Local Stateless session bean (CalculatorImpl) which adds two numbers and returns the result. The application also contains a JSF managed bean (CalculatorBean), which uses the EJB to add two numbers and display the results to the user. The EJB is injected in the managed bean using @EJB annotation.
To run this example, perform the following steps:-
1. Install latest Tomcat
2. Deploy OpenEJB WAR in tomcat
3. Open <
Once you make the change, you would need to redeploy the application. Run the following command mvn clean install war:exploded tomcat:redeploy
package org.superbiz.jsf;
import javax.ejb.Remote;
@Remote
public interface Calculator {
public double add(double x, double y);
}
package org.superbiz.jsf;
import javax.ejb.EJB;
public class CalculatorBean {
@EJB
Calculator calculator;
private double x;
private double y;
private double result;
public double getX() {
return x;
}
public void setX(double x) {
this.x = x;
}
public double getY() {
return y;
}
public void setY(double y) {
this.y = y;
}
public double getResult() {
return result;
}
public void setResult(double result) {
this.result = result;
}
public String add() {
result = calculator.add(x, y);
return "success";
}
}
package org.superbiz.jsf;
import javax.ejb.Stateless;
@Stateless
public class CalculatorImpl implements Calculator {
public double add(double x, double y) {
return x + y;
}
}
<faces-config version="1.2"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">
<managed-bean>
<managed-bean-name>calculator</managed-bean-name>
<managed-bean-class>org.superbiz.jsf.CalculatorBean</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<navigation-rule>
<from-view-id>/calculator.jsp</from-view-id>
<navigation-case>
<from-outcome>success</from-outcome>
<to-view-id>/result.jsp</to-view-id>
</navigation-case>
</navigation-rule>
<navigation-rule>
<from-view-id>/result.jsp</from-view-id>
<navigation-case>
<from-outcome>back</from-outcome>
<to-view-id>/calculator.jsp</to-view-id>
</navigation-case>
</navigation-rule>
</faces-config>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<description>MyProject web.xml</description>
<!--optional: context-param>
<description>Comma separated list of URIs of (additional) faces config files.
(e.g. /WEB-INF/my-config.xml)
See JSF 1.0 PRD2, 10.3.2
Attention: You do not need to put /WEB-INF/faces-config.xml in here.
</description>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/examples-config.xml</param-value>
</context-param-->
<context-param>
<description>State saving method: "client" or "server" (= default)
See JSF Specification 2.5.3
</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<description>Only applicable if state saving method is "server" (= default).
Defines the amount (default = 20) of the latest views are stored in session.
</description>
<param-name>org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION</param-name>
<param-value>20</param-value>
</context-param>
<context-param>
<description>Only applicable if state saving method is "server" (= default).
If true (default) the state will be serialized to a byte stream before it
is written to the session.
If false the state will not be serialized to a byte stream.
</description>
<param-name>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>Only applicable if state saving method is "server" (= default) and if
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION is true (= default)
If true (default) the serialized state will be compressed before it
is written to the session. If false the state will not be compressed.
</description>
<param-name>org.apache.myfaces.COMPRESS_STATE_IN_SESSION</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>This parameter tells MyFaces if javascript code should be allowed in the
rendered HTML output.
If javascript is allowed, command_link anchors will have javascript code
that submits the corresponding form.
If javascript is not allowed, the state saving info and nested parameters
will be added as url parameters.
Default: "true"
</description>
<param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<description>If true, rendered HTML code will be formatted, so that it is "human readable".
i.e. additional line separators and whitespace will be written, that do not
influence the HTML code.
Default: "true"
</description>
<param-name>org.apache.myfaces.PRETTY_HTML</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>If true, a javascript function will be rendered that is able to restore the
former vertical scroll on every request. Convenient feature if you have pages
with long lists and you do not want the browser page to always jump to the top
if you trigger a link or button action that stays on the same page.
Default: "false"
</description>
<param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>Used for encrypting view state. Only relevant for client side
state saving. See MyFaces wiki/web site documentation for instructions
on how to configure an application for diffenent encryption strengths.
</description>
<param-name>org.apache.myfaces.SECRET</param-name>
<param-value>NzY1NDMyMTA=</param-value>
</context-param>
<context-param>
<description>
Validate managed beans, navigation rules and ensure that forms are not nested.
</description>
<param-name>org.apache.myfaces.VALIDATE</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Treat readonly same as if disabled attribute was set for select elements.
</description>
<param-name>org.apache.myfaces.READONLY_AS_DISABLED_FOR_SELECTS</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Use the defined class as the class which will be called when a resource is added to the
ExtensionFilter handling. Using StreamingAddResource here helps with performance. If you want to add
custom components and want to use the ExtensionFilter, you need to provide your custom implementation here.
</description>
<param-name>org.apache.myfaces.ADD_RESOURCE_CLASS</param-name>
<param-value>org.apache.myfaces.renderkit.html.util.DefaultAddResource</param-value>
</context-param>
<context-param>
<description>
Virtual path in the URL which triggers loading of resources for the MyFaces extended components
in the ExtensionFilter.
</description>
<param-name>org.apache.myfaces.RESOURCE_VIRTUAL_PATH</param-name>
<param-value>/faces/myFacesExtensionResource</param-value>
</context-param>
<context-param>
<description>
Check if the extensions-filter has been properly configured.
</description>
<param-name>org.apache.myfaces.CHECK_EXTENSIONS_FILTER</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>
Define partial state saving as true/false.
</description>
<param-name>javax.faces.PARTIAL_STATE_SAVING_METHOD</param-name>
<param-value>false</param-value>
</context-param>
<!-- Extensions Filter -->
<filter>
<filter-name>extensionsFilter</filter-name>
<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class>
<init-param>
<description>Set the size limit for uploaded files.
Format: 10 - 10 bytes
10k - 10 KB
10m - 10 MB
1g - 1 GB
</description>
<param-name>uploadMaxFileSize</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<description>Set the threshold size - files
below this limit are stored in memory, files above
this limit are stored on disk.
Format: 10 - 10 bytes
10k - 10 KB
10m - 10 MB
1g - 1 GB
</description>
<param-name>uploadThresholdSize</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>extensionsFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<!-- Listener, to allow Jetty serving MyFaces apps -->
<listener>
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>
<!-- 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>
<!-- Welcome files -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
svn co http://svn.apache.org/repos/asf/openejb/trunk/openejb/examples/webapps/jsf cd jsf mvn clean install