富脸丝状体ViewExpiredException

Question

我有一个使用rich:fileUpload上传文件的页面。对于较小的文件，这个工作正常，但是对于较大的文件(+80 ok )，我通常会得到一个ViewExpiredException。我已经试图寻找一个解决方案，但我没有找到解决这个问题的任何方法。

• Richfaces 3.3.3.3
• Tomcat 6.0.20
• 春季2.5.6
• JSF 1.2_14

pagebean：

@Component
@Scope("request")
public class Bean {
    ...
}

jspx：

<?xml version="1.0" encoding="UTF-8" ?>
<jsp:root omit-xml-declaration="true"
xmlns:jsp="http://java.sun.com/JSP/Page"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:t="http://myfaces.apache.org/tomahawk"
xmlns:a4j="https://ajax4jsf.dev.java.net/ajax"
xmlns:rich="http://richfaces.ajax4jsf.org/rich"
xmlns:ui="http://java.sun.com/jsf/facelets" version="2.0">
<rich:panel styleClass="formPanel">
    <h:form id="docForm">
        <ui:param name="doc" value="#{pb.newDoc}" />
    <h:panelGrid columns="2" columnClasses="formTableLabel, formTableField">
        ...
        <h:outputLabel for="fileUpload" value="#{labels['file']}*" />
    <h:panelGroup>
        <rich:fileUpload required="true" ajaxSingle="true"
            fileUploadListener="#{pb.uploadDocument}" id="fileUpload"
        autoclear="false" immediateUpload="true" noDuplicate="true"
        addControlLabel="#{labels['browse']}">
        <a4j:support event="onclear" reRender="fileUpload" ajaxSingle="true"
                oncomplete="$('docForm:fileUpload').component.currentInput.enable()"/>
        </rich:fileUpload>
        <h:message for="fileUpload" styleClass="errorMessage"
            showDetail="false" showSummary="true" />
    </h:panelGroup>
    ...

web.xml：

...
<context-param>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>server</param-value>
</context-param>
<context-param>
    <param-name>facelets.SKIP_COMMENTS</param-name>
    <param-value>true</param-value>
</context-param>
<context-param>
    <param-name>facelets.BUFFER_SIZE</param-name>
    <param-value>500000</param-value>
</context-param>
<context-param>
    <param-name>org.richfaces.LoadScriptStrategy</param-name>
    <param-value>ALL</param-value>
</context-param>
<context-param>
    <param-name>org.richfaces.LoadStyleStrategy</param-name>
    <param-value>ALL</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.jspx</param-value>
</context-param>
<context-param>
    <description>
        Context parameter specifically for facelets, lists available tag libraries.
    </description>
    <param-name>facelets.LIBRARIES</param-name>
    <param-value>
        /WEB-INF/taglibs/authorization.taglib.xml;
        /WEB-INF/taglibs/taskscreen.taglib.xml
    </param-value>
</context-param>
<context-param>
    <param-name>javax.faces.CONFIG_FILES</param-name>
    <param-value>/WEB-INF/config/faces-config.xml</param-value>
</context-param>
<context-param>
    <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
    <param-value>com.sun.facelets.FaceletViewHandler</param-value>
</context-param>
<filter>
    <display-name>RichFaces Filter</display-name>
    <filter-name>richfaces</filter-name>
    <filter-class>org.ajax4jsf.Filter</filter-class>
    <init-param>
        <param-name>forceparser</param-name>
        <param-value>false</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>Pretty Filter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
    <filter-name>richfaces</filter-name>
    <servlet-name>FacesServlet</servlet-name>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>INCLUDE</dispatcher>
</filter-mapping>
<welcome-file-list>
    <welcome-file>start/start.jspx</welcome-file>
</welcome-file-list>
<error-page>
    <error-code>500</error-code>
    <location>/error.jspx</location>
</error-page>
<error-page>
    <error-code>403</error-code>
    <location>/access-denied.jspx</location>
</error-page>
<error-page>
    <exception-type>javax.faces.application.ViewExpiredException</exception-type>
    <location>/expired.jsf</location>
</error-page>
<session-config>
    <session-timeout>30</session-timeout>
</session-config>
...

堆叠痕迹：

SEVERE: JSF1054: (Phase ID: RESTORE_VIEW 1, View ID: ) Exception thrown during phase execution:   javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@22075431]
2012-09-13 16:43:46,945 [qtp130437654-18] ERROR org.ajax4jsf.webapp.BaseXMLFilter  doXmlFilter - Exception in the filter chain
javax.servlet.ServletException: viewId:/data/includes/doc.jspx - View /data/includes/doc.jspx could not be restored.
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:270)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:521)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1207)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:367)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:433)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:118)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:490)
at org.eclipse.jetty.server.session.SessionHandler.handle(SessionHandler.java:179)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:928)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:370)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:862)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:116)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:331)
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:115)
at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:64)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:110)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at com.doc.filter.IEFilter.doFilter(IEFilter.java:33)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at com.doc.portal.filter.ExceptionRedirectFilter.doFilter(ExceptionRedirectFilter.java:28)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:110)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at com.doc.filter.UTF8Filter.doFilter(UTF8Filter.java:20)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1178)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:433)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:118)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:456)
at org.eclipse.jetty.server.session.SessionHandler.handle(SessionHandler.java:179)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:928)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:370)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:862)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:116)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:115)
at org.eclipse.jetty.server.Server.handle(Server.java:330)
at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:557)
at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:947)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:736)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:203)
at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:413)
at org.eclipse.jetty.server.bio.SocketConnector$Connection.run(SocketConnector.java:229)
at org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnection.run(SslSocketConnector.java:648)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:435)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.faces.application.ViewExpiredException: viewId:/data/includes/doc.jspx - View /data/includes/doc.jspx could not be restored.
at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:189)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:102)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
... 75 more

有谁有办法解决这个问题吗？谢谢。

Answer 1

这可能不是您想要听到的，但是标准HTTP协议在上传大型文件时不能很好地工作。通常，在对等套接字应用程序中，客户端和服务器都可以维护连接健康，并在大传输期间保持一切正常。但是，对于HTTP和web，客户端通常拥有的唯一有状态的东西是它的cookie。客户端无法知道其cookie是否仍然有效(更正:除非它们显式地设置为在特定日期过期)，直到将其发送给服务器并获得返回结果的响应。

因此，服务器需要在会话的生命周期上设置一个时间线，并且在这段时间过去之后，它将抛出会话的有状态信息。更重要的是，典型的internet连接往往比下载速度慢一些，并且会话在等待一个大文件上传时失效并不少见。

你有三个选择：

1. 增加服务器上的会话超时过期时间。也许这会给你足够的时间。
2. 使用丰富的客户端接口(Flash、Applet、Silverlight等)你利用这个丰富的客户端，将你的文件上传到你的网页上。这里的好处是，您可以将大文件分解成可管理的二进制块，并使用会话cookie一次将它们发送到服务器。每个成功的块请求都会在整个传输过程中保持会话的活力。您的服务器在接收到最后一个块后，可以重新组装您的大型文件并将其持久保存。
3. 除了利用HTML5和JS的功能之外，做与#2基本相同的事情。下面是一个开源Javascript库，它利用HTML5技术将大文件分解成块，并帮助在服务器上重新组装它们。http://steffentchr.dk/post/7454042318/resumable-js这种方法的一些缺点是，由于它使用的是HTML5，它只能在现代浏览器上工作，所以对IE7这样的老浏览器的支持是值得怀疑的。

关于第3点的另一个注意事项是，在自定义或复合JSF组件中包含这个Javascript代码并不是不可能的，这将允许您在客户机和服务器之间建立更精简的接口。

另外，请参见以下问题：Upload of very large files