JSF 2.2 ViewScoped bean的行为就好像它是WebSphere Portal中的SessionScoped bean

Question

我正在研究一个项目，该项目在“ WebSphere Portal”环境中使用JSF 2.2。

我的ViewScoped bean行为异常。

假设我的门户网站中有两个页面，一个页面称为“ A”，另一个页面称为“ B”。

在我的“ A”页面上，有一个portlet，该portlet的屏幕上列出了Ajax分页项的列表。假设我单击以转到此项目列表中的第2页，然后导航到门户中的“ B”页面。

ViewScoped bean的预期行为是，当我们离开页面时，该bean被破坏，而当我们返回该bean时，将重新构造所有数据，即丢失状态。

但是，当我再次导航至页面“ A”时，即使我导航至另一页面，Portlet屏幕分页的当前页面仍为2，即保持状态。

WebSphere Portal 9.0

JSF 2.2

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0"
         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-app_3_0.xsd">

    <display-name>GSRE-GestaoUsuarios-Portlet</display-name>

    <context-param>
        <description>
            Load JSF runtime when the application server starts up. If this parameter is set to false or removed,
            JSF runtime will be loaded and initialized when the first JSF request is processed.
            This may disable custom JSF extensions, such as factories defined in the project.</description>
        <param-name>com.ibm.ws.jsf.LOAD_FACES_CONFIG_AT_STARTUP</param-name>
        <param-value>true</param-value>
    </context-param>

    <listener>
        <listener-class>com.ibm.faces20.portlet.httpbridge.PortletRequestAttributesListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
        <enabled>true</enabled>
        <async-supported>false</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>/faces/*</url-pattern>
    </servlet-mapping>

</web-app>

faces-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<faces-config version="2.0" 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_0.xsd">
  <application>
    <view-handler>com.ibm.faces20.portlet.FaceletPortletViewHandler</view-handler>
    <el-resolver>com.ibm.faces20.portlet.PortletELResolver</el-resolver>
    <resource-handler>com.ibm.faces20.portlet.httpbridge.PortletResourceHandler</resource-handler>
  </application>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletActionURL</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletActionURL</component-class>
  </component>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletResourceURL</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletResourceURL</component-class>
  </component>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletRenderURL</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletRenderURL</component-class>
  </component>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletParam</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletParam</component-class>
  </component>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletProperty</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletProperty</component-class>
  </component>
  <component>
    <component-type>com.ibm.faces20.portlet.component.PortletNameSpace</component-type>
    <component-class>com.ibm.faces20.portlet.component.PortletNameSpace</component-class>
  </component>
  <render-kit>
    <renderer>
      <component-family>javax.faces.Output</component-family>
      <renderer-type>com.ibm.faces20.portlet.tag.render.ActionURLTagRender</renderer-type>
      <renderer-class>com.ibm.faces20.portlet.tag.render.ActionURLTagRender</renderer-class>
    </renderer>
  </render-kit>
  <render-kit>
    <renderer>
      <component-family>javax.faces.Output</component-family>
      <renderer-type>com.ibm.faces20.portlet.tag.render.ResourceURLTagRender</renderer-type>
      <renderer-class>com.ibm.faces20.portlet.tag.render.ResourceURLTagRender</renderer-class>
    </renderer>
  </render-kit>
  <render-kit>
    <renderer>
      <component-family>javax.faces.Output</component-family>
      <renderer-type>com.ibm.faces20.portlet.tag.render.RenderURLTagRender</renderer-type>
      <renderer-class>com.ibm.faces20.portlet.tag.render.RenderURLTagRender</renderer-class>
    </renderer>
  </render-kit>
  <render-kit>
    <renderer>
      <component-family>javax.faces.Output</component-family>
      <renderer-type>com.ibm.faces20.portlet.tag.render.PortletNameSpaceTagRender</renderer-type>
      <renderer-class>com.ibm.faces20.portlet.tag.render.PortletNameSpaceTagRender</renderer-class>
    </renderer>
  </render-kit>
</faces-config>

如何使@ViewScope范围按预期工作，即页面刷新和浏览器刷新都会破坏并构建Bean。