HTTP状态 500 - 内部服务器错误


类型 异常报告

消息 Function [fn:substringBefore] not found

描述 服务器遇到一个意外的情况,阻止它完成请求。

例外情况

javax.servlet.ServletException: Function [fn:substringBefore] not found
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	com.speedlife.framework.web.filters.BaseFilter.processFilter(BaseFilter.java:208)
	com.speedlife.framework.web.filters.BaseFilter.handleDoFilter(BaseFilter.java:138)
	com.speedlife.framework.web.filters.BaseFilter.doFilter(BaseFilter.java:100)
	com.speedlife.site.web.page.StaticPageFilter.processFilter(StaticPageFilter.java:95)
	com.speedlife.framework.web.filters.BaseFilter.handleDoFilter(BaseFilter.java:135)
	com.speedlife.framework.web.filters.BaseFilter.doFilter(BaseFilter.java:100)
	com.speedlife.framework.web.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:89)

根本原因。

javax.el.ELException: Function [fn:substringBefore] not found
	org.apache.el.lang.ExpressionBuilder.visit(ExpressionBuilder.java:216)
	org.apache.el.parser.SimpleNode.accept(SimpleNode.java:147)
	org.apache.el.lang.ExpressionBuilder.prepare(ExpressionBuilder.java:158)
	org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:176)
	org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:239)
	org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:66)
	com.sun.faces.facelets.el.ELText$ELTextVariable.apply(ELText.java:203)
	com.sun.faces.facelets.compiler.TextInstruction.apply(TextInstruction.java:96)
	com.sun.faces.facelets.compiler.UIInstructionHandler.apply(UIInstructionHandler.java:141)
	javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
	com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:190)
	javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
	javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
	com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
	com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:312)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:371)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:350)
	com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
	com.sun.faces.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java:120)
	javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
	com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:190)
	javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
	com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
	com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:312)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:371)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:350)
	com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
	com.sun.faces.facelets.tag.ui.IncludeHandler.apply(IncludeHandler.java:120)
	javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
	com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
	com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:312)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:371)
	com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:350)
	com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
	com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:169)
	com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
	com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
	com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:161)
	com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:980)
	com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:99)
	com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	com.speedlife.framework.web.filters.BaseFilter.processFilter(BaseFilter.java:208)
	com.speedlife.framework.web.filters.BaseFilter.handleDoFilter(BaseFilter.java:138)
	com.speedlife.framework.web.filters.BaseFilter.doFilter(BaseFilter.java:100)
	com.speedlife.site.web.page.StaticPageFilter.processFilter(StaticPageFilter.java:95)
	com.speedlife.framework.web.filters.BaseFilter.handleDoFilter(BaseFilter.java:135)
	com.speedlife.framework.web.filters.BaseFilter.doFilter(BaseFilter.java:100)
	com.speedlife.framework.web.filters.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:89)

):注意 主要问题的全部 stack 信息可以在 server logs 里查看


Apache Tomcat/9.0.87