HTTP状态 500 - 内部服务器错误
类型 异常报告
消息 无法为JSP编译类
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: 无法为JSP编译类
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:612)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
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:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
根本原因。
javax.el.ELException: Unable to find ExpressionFactory of type [# Licensed to the Apache Software Foundation (ASF) under one or more]
javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:152)
javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:91)
org.apache.jasper.compiler.PageInfo.(PageInfo.java:79)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:116)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:375)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:335)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:597)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
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:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
根本原因。
java.lang.ClassNotFoundException: # Licensed to the Apache Software Foundation (ASF) under one or more
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1358)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1180)
javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:145)
javax.el.ExpressionFactory.newInstance(ExpressionFactory.java:91)
org.apache.jasper.compiler.PageInfo.(PageInfo.java:79)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:116)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:375)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:335)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:597)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
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:741)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
):注意 主要问题的全部 stack 信息可以在 server logs 里查看
