类型 异常报告
消息 javax.el.ELException: Problems calling function [alphaFun:getFacesVar]
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
org.apache.jasper.JasperException: javax.el.ELException: Problems calling function [alphaFun:getFacesVar] org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:598) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:514) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:733) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) alpha.utils.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:59)
根本原因。
javax.el.ELException: Problems calling function [alphaFun:getFacesVar] org.apache.el.parser.AstFunction.getValue(AstFunction.java:211) org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:190) org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:944) org.apache.jsp.readArticle_jsp._jspService(readArticle_jsp.java:213) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71) javax.servlet.http.HttpServlet.service(HttpServlet.java:733) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:733) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) alpha.utils.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:59)
根本原因。
java.lang.NullPointerException alpha.utils.FacesUtils.getRequest(FacesUtils.java:48) alpha.taglib.Functions.getFacesVar(Functions.java:838) sun.reflect.GeneratedMethodAccessor250.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) org.apache.el.parser.AstFunction.getValue(AstFunction.java:199) org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:190) org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:944) org.apache.jsp.readArticle_jsp._jspService(readArticle_jsp.java:213) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71) javax.servlet.http.HttpServlet.service(HttpServlet.java:733) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:733) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) alpha.utils.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:59)
):注意 主要问题的全部 stack 信息可以在 server logs 里查看