javax.faces.application.ViewExpiredException : View could not be restored

Question

我使用 jsf、prettyfaces 和 hibernate 创建了此网页我环顾四周，大多数人说这个错误是因为缓存大多数人在登录、注销并尝试重新登录后发现此错误但我在登录时发现此错误，并且当我尝试导航到任何其他页面时，我单击的任何链接都会产生此错误

更困难的是这个错误并不是每次都会发生有时当我尝试重新启动服务器，重新登录时，一切正常但有时当这个错误再次发生时，我尝试重新启动服务器并尝试重新登录。仍然出现相同的错误

javax.faces.application.ViewExpiredException: viewId:/ePortfolio.jsf - View /ePortfolio.jsf could not be restored.
at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:212)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:110)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:112)
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.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)

Answer 1

JSF 在 session 中保留一定数量的(可配置的) View 。如果您向无法再恢复的 View 发送帖子，您将收到此ViewExpiredException，即。不再出现在该 session 的 View 列表中。

造成这种情况的原因可能有多种。我现在能想到的两种可能的情况是:

• session 已失效/过期
• 在应恢复的 View 之后创建多个(> View 中配置的 session 数量) View