Portal.java
body.lock-position {
height: 100%;
overflow: hidden;
width: 100%;
position: fixed;
}
portal.xhtml
@ManagedBean(name="portal")
@ViewScoped
public class Portal {
public String foo ="foo";
@PostConstruct
public void init() {
System.out.println("instantiated");
}
}
faces-config.xml中
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<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">
<ui:composition template="/WEB-INF/templates/wide_template.xhtml">
<ui:define name="mainContent">
<!-- other markup removed -->
<h:outputText value="hello:#{portal.foo}"></h:outputText>
</ui:define>
</ui:composition>
</html>
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<faces-config xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
version="2.2">
</faces-config>
我的页面正确呈现所有元素。例如<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="3.0">
<context-param>
<param-name>facelets.REFRESH_PERIOD</param-name>
<param-value>2</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.validateXml</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.verifyObjects</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<context-param>
<param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
</context-param>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<welcome-file-list>
<welcome-file>portal.xhtml</welcome-file>
</welcome-file-list>
<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>/skinned/*</url-pattern>
<url-pattern>*.faces</url-pattern>
<url-pattern>/faces/*</url-pattern>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
等等。但似乎我的Managed Bean从未实例化,因为我没有在控制台上看到输出,也没有页面呈现h:selectOneMenu
的内容。
我已经阅读了关于SO的其他一些问题:
有没有人知道SessionScope的问题?
我有什么遗失的东西吗?或者我是否必须提供更多内容,例如部署后的应用程序结构,更多代码,屏幕截图?
答案 0 :(得分:0)
由于它是@ViewScoped bean,你必须实现Serializable,因为实现可能决定在需要时序列化会话或查看作用域bean。
@ManagedBean(name="portal")
@ViewScoped
public class Portal implements Serializable{
理论上,NonSerializableException
只应在序列化过程中发生,但也许您的环境设置会阻止创建本身。
无论如何,你的所有@SessionScoped / @ViewScoped都应按照定义标记。
答案 1 :(得分:0)
尝试使用@javax.inject.Named
代替@ManagedBean
。