我在这里搜索了几乎所有关于 FullAjaxExceptionHandler 的问题,但没有一个能解决我的问题。
好吧,我已经实现了 FullAjaxExceptionHandler 但它不适用于 ajax 请求。如果请求不是 Ajax,它可以正常工作并重定向到过期页面,但如果是 Ajax,页面会变为空白,我得到:
FullAjaxExceptionHandler: An exception occurred during processing JSF ajax request. Error page '/view/errorpages/expired.faces' will be shown.
javax.faces.application.ViewExpiredException: viewId:/view/main.faces - A exibição de /view/main.faces não pôde ser restaurada.
at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:200)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:111)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.omnifaces.filter.CacheControlFilter.doFilter(CacheControlFilter.java:226)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.omnifaces.filter.FacesExceptionFilter.doFilter(FacesExceptionFilter.java:56)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:113)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
ps 我确定我不会手动将其重定向到其他地方。
编辑:我尝试了一种使用自定义 ViewExpiredException 的方法
public class ViewExpiredException extends ExceptionHandlerWrapper {
private ExceptionHandler wrapped;
public ViewExpiredException(ExceptionHandler wrapped) {
this.wrapped = wrapped;
}
@Override
public ExceptionHandler getWrapped() {
return this.wrapped;
}
@Override
public void handle() throws FacesException {
for (Iterator<ExceptionQueuedEvent> iter = getUnhandledExceptionQueuedEvents()
.iterator(); iter.hasNext();) {
ExceptionQueuedEvent evt = iter.next();
Throwable exception = evt.getContext().getException();
FacesContext fc = evt.getContext().getContext();
if (exception instanceof javax.faces.application.ViewExpiredException) {
try {
fc.getExternalContext().redirect("/sino/view/main.xhtml");
fc.responseComplete();
} catch (IOException e) {
e.printStackTrace();
} finally {
iter.remove();
}
}
}
getWrapped().handle();
}
}
它适用于 Ajax 和非 Ajax 请求。但我仍然想使用omnifaces方法
更新更改一些日志后,当页面在重定向后变为空白时,我得到了这个消息:
Warning: you have included the Google Maps API multiple times on this page. This may cause unexpected errors. main.js.53
我不认为这是问题,但我也不知道为什么 FullAjaxExceptionHandler 会发生而 ViewExpiredException 不会。
Edit2:现在 expired.xhtml 是:
<?xml version="1.0" encoding="UTF-8"?>
<!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:t="http://myfaces.apache.org/tomahawk"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html" xml:lang="pt" lang="pt">
<ui:composition>
<h:form>
<h:outputText value="View Expired" />
</h:form>
</ui:composition>
</html>
而且我仍然没有被重定向,但现在页面不会变成空白。该页面保持在同一页面,我得到:
Uncaught TypeError: Cannot read property '0' of null primefaces.js.faces?ln=primefaces:1
重定向之前可能有问题?