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PO@ManagedBean annotation doesnt work, but @Named works
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  1. PO@ManagedBean annotation doesnt work, but @Named works
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    copied!<p>I had some troubles. Class with @Named works:</p> <pre><code>@Named @SessionScoped public class UserBean { @Autowired UserBo userBo; public void setUserBo(UserBo userBo) { this.userBo = userBo; } public String printMsgFromSpring() { return userBo.getMessage(); } } </code></pre> <p>but this is doesnt work and generates error:</p> <p><em>javax.servlet.ServletException javax.faces.webapp.FacesServlet.service(FacesServlet.java:606) root cause java.lang.NullPointerException com.mkyong.UserBean.printMsgFromSpring(UserBean.java:24)</em></p> <pre><code>@ManagedBean @SessionScoped public class UserBean { @Autowired UserBo userBo; public void setUserBo(UserBo userBo) { this.userBo = userBo; } public String printMsgFromSpring() { return userBo.getMessage(); } } </code></pre> <p>xhtml page:</p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html"&gt; &lt;h:body&gt; &lt;h1&gt;JSF 2.0 + Spring Example&lt;/h1&gt; #{userBean.printMsgFromSpring()} &lt;/h:body&gt; </code></pre> <p></p> <p>faces-config.xml :</p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;faces-config xmlns="http://java.sun.com/xml/ns/javaee" 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_2_1.xsd" version="2.1"&gt; &lt;application&gt; &lt;el-resolver&gt;org.springframework.web.jsf.el.SpringBeanFacesELResolver&lt;/el-resolver&gt; &lt;/application&gt; &lt;/faces-config&gt; </code></pre> <p>Service class:</p> <pre><code>@Named public class UserBoImpl implements UserBo{ public String getMessage() { return "JSF 2 + Spring Integration"; } } </code></pre> <p>web.xml:</p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;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"&gt; &lt;display-name&gt;JavaServerFaces&lt;/display-name&gt; &lt;!-- Add Support for Spring --&gt; &lt;listener&gt; &lt;listener-class&gt; org.springframework.web.context.ContextLoaderListener &lt;/listener-class&gt; &lt;/listener&gt; &lt;listener&gt; &lt;listener-class&gt; org.springframework.web.context.request.RequestContextListener &lt;/listener-class&gt; &lt;/listener&gt; &lt;welcome-file-list&gt; &lt;welcome-file&gt;default.xhtml&lt;/welcome-file&gt; &lt;/welcome-file-list&gt; &lt;servlet&gt; &lt;servlet-name&gt;facesServlet&lt;/servlet-name&gt; &lt;servlet-class&gt;javax.faces.webapp.FacesServlet&lt;/servlet-class&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;facesServlet&lt;/servlet-name&gt; &lt;url-pattern&gt;*.xhtml&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;/web-app&gt; </code></pre> <p>applicationContext.xml :</p> <pre><code> &lt;beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"&gt; &lt;context:component-scan base-package="com.mkyong" /&gt; &lt;/beans&gt; </code></pre>
 

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