我只想尝试使用Tomcat 6.0来试用JSF 2.0（MyFaces 2.0）。
我是JSF的新手。我只是在应用程序根目录中放置了一个静态xhtml test.jsf。请求URL时，将始终抛出StackOverflowError：
java.lang.StackOverflowError
at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.<init>(ApplicationHttpRequest.java:904)
at org.apache.catalina.core.ApplicationHttpRequest.getAttributeNames(ApplicationHttpRequest.java:243)
at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.<init>(ApplicationHttpRequest.java:905)
at org.apache.catalina.core.ApplicationHttpRequest.getAttributeNames(ApplicationHttpRequest.java:243)
at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.<init>(ApplicationHttpRequest.java:905)
（重复多次，但随后：）
at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.<init>(ApplicationHttpRequest.java:905)
at org.apache.catalina.core.ApplicationHttpRequest.getAttributeNames(ApplicationHttpRequest.java:243)
at org.apache.myfaces.context.servlet.RequestMap.getAttributeNames(RequestMap.java:66)
at org.apache.myfaces.util.AbstractAttributeMap.isEmpty(AbstractAttributeMap.java:100)
at org.apache.myfaces.renderkit.ErrorPageWriter._writeVariables(ErrorPageWriter.java:558)
at org.apache.myfaces.renderkit.ErrorPageWriter._writeVariables(ErrorPageWriter.java:538)
at org.apache.myfaces.renderkit.ErrorPageWriter.debugHtml(ErrorPageWriter.java:259)
at org.apache.myfaces.renderkit.ErrorPageWriter.debugHtml(ErrorPageWriter.java:221)
at org.apache.myfaces.renderkit.ErrorPageWriter.handleThrowable(ErrorPageWriter.java:384)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:102)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:189)
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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:439)
at org.apache.myfaces.view.jsp.JspViewDeclarationLanguage.buildView(JspViewDeclarationLanguage.java:115)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:103)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:207)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191)
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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:439)
at org.apache.myfaces.view.jsp.JspViewDeclarationLanguage.buildView(JspViewDeclarationLanguage.java:115)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:103)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:207)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191)
（也重复多次......）
我做错了什么？
答案 0 :(得分：3)
HTTP servlet请求期间的StackOverflowError表示servlet / filter映射中的无限递归。您的FacesServlet如何映射？它应该映射为url-pattern *.jsf，因此不 *.xhtml（这是初学者常见的错误）。否则它将以递归方式调用自身。 实际文件应命名为*.xhtml。您只需在URL中将其称为*.jsf即可。请咨询/参考JSF 2.0 books / tutorials / documentation，了解如何正确配置/使用JSF。