我在 glassfish 之前使用 apache 作为反向代理，当我尝试代理传递到重写的子文件夹而不是主文件夹时，我遇到了以下问题。
所有 ajax 调用都不再起作用，导致500 Internal Server Error.
当我将代理传递到主文件夹时，我没有遇到任何问题。
JSF - 重写规则：
使用http://ocpsoft.org/重写解决方案来创建 apache 也应代理的虚拟 url：
`/foo/{fooViewParamValue} -> /sites/foo/foo.xhtml`
阿帕奇配置：
<VirtualHost *>
ProxyRequests Off
<proxy *>
Order deny,allow
# Deny from all
Allow from all
</proxy>
SetOutputFilter proxy-html
ProxyPreserveHost On
# map resources
ProxyPass /res/ http://localhost:2080/res/
ProxyPassReverse /res/ http://localhost:2080/res/
# map subfolder
ProxyPass / http://localhost:2080/foo/fooViewParamValue/
ProxyPassReverse / http://localhost:2080/foo/fooViewParamValue/
# map main folder - test
#ProxyPass / http://localhost:2080/
#ProxyPassReverse / http://localhost:2080/
# map processed html elements
ProxyHTMLLinks a href
ProxyHTMLLinks area href
ProxyHTMLLinks link href
ProxyHTMLLinks img src longdesc usemap
ProxyHTMLLinks object classid codebase data usemap
ProxyHTMLLinks q cite
ProxyHTMLLinks blockquote cite
ProxyHTMLLinks ins cite
ProxyHTMLLinks del cite
ProxyHTMLLinks form action
ProxyHTMLLinks input src usemap
ProxyHTMLLinks head profile
ProxyHTMLLinks base href
ProxyHTMLLinks script src for
# map processed html events
ProxyHTMLEvents onclick ondblclick onmousedown onmouseup \
onmouseover onmousemove onmouseout onkeypress \
onkeydown onkeyup onfocus onblur onload \
onunload onsubmit onreset onselect onchange
ProxyHTMLEnable On
ProxyHTMLExtended On
# main folder html
#ProxyHTMLURLMap / /
# subfolder html
ProxyHTMLURLMap /foo/fooViewParamValue/ /
ProxyHTMLURLMap /foo/fooViewParamValue /
</VirtualHost>
观察：
有时删除表单操作属性的内容（在 firebug 中）就足以使其工作，但有时异常会陷入无限循环：
<h:form>
<p:commandButton/>
</h:form>
<!-- final html -->
<form action="/sites/foo/foo.xhtml">
<button/>
</form>
<!-- removing action content sometimes works -->
<form action="">
<button/>
</form>
记录的异常：
有时一次，有时循环：
Warnung: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
at com.sun.faces.context.PartialViewContextImpl.createPartialResponseWriter(PartialViewContextImpl.java:439)
at com.sun.faces.context.PartialViewContextImpl.access$300(PartialViewContextImpl.java:72)
at com.sun.faces.context.PartialViewContextImpl$DelayedInitPartialResponseWriter.getWrapped(PartialViewContextImpl.java:573)
at javax.faces.context.PartialResponseWriter.startDocument(PartialResponseWriter.java:115)
at org.omnifaces.context.OmniPartialViewContext$OmniPartialResponseWriter.startDocument(OmniPartialViewContext.java:252)
at org.primefaces.context.PrimePartialResponseWriter.startDocument(PrimePartialResponseWriter.java:133)
at com.sun.faces.context.AjaxExceptionHandlerImpl.handlePartialResponseError(AjaxExceptionHandlerImpl.java:199)
at com.sun.faces.context.AjaxExceptionHandlerImpl.handle(AjaxExceptionHandlerImpl.java:124)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:119)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at package.HttpHeaderFilter.doFilter(HttpHeaderFilter.java:48)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:199)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
编辑1：
我//Rewrite从 apache 删除并映射到物理子文件夹，没有问题。由于映射工作没有使用ocp rewrite没有问题。重写本身一定是原因。
编辑2：
回到前身PrettyFaces，它可以毫无问题地工作。