JSF MyFaces：监视numberOfViewsInSession和numberOfLogicalViews

我目前正在开发一个web应用程序，大约有10页，中等复杂度。 前几天我们开始了性能测试，在日志中可以发现以下异常：

2011-08-01 15:30:38,075 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.application.ViewExpiredException: /pages/mypage.jsfNo saved view state could be found for the view identifier: /pages/mypage.jsf
        at org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:88)
        at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:103)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:151)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
        at org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:406)
        at org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
        at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:419)
        at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:378)
        at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
        at java.lang.Thread.run(Unknown Source)

我一直在阅读论坛，其中大多数论坛都会提到以下属性，这些属性控制一个特定会话中存储的最大视图数：

com.sun.faces.numberofviewsin会话 com.sun.faces.numberofLogicalView

在尝试设置默认值以外的值之前，我首先想看看会话中有多少视图。我看到的是：

用户：x，视图：y，逻辑视图：z

有人知道我怎样才能得到这种数据吗

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另外，该应用程序在WASCE环境中运行，并使用myfaces-1.2.6。

com.sun.faces.*Mojarra不是myfaces。 你应该试试看