在访问jsp出现以下异常：

org.apache.el.parser.ParseException: Encountered " <FLOATING_POINT_LITERAL> ".111 "" at line 1, column 19.
Was expecting one of:    
"}" ...    
"." ...    
"[" ...    
">" ...    
"gt" ...    
"<" ...    
"lt" ...    
">=" ...    
"ge" ...    
"<=" ...    
"le" ...    
"==" ...    
"eq" ...    
"!=" ...    
"ne" ...    
"&&" ...    
"and" ...    
"||" ...    
"or" ...    
"*" ...    
"+" ...    
"-" ...    
"/" ...    
"div" ...    
"%" ...    
"mod" ...     
at org.apache.el.parser.ELParser.generateParseException(ELParser.java:2217) 
at org.apache.el.parser.ELParser.jj_consume_token(ELParser.java:2099) 
at org.apache.el.parser.ELParser.DynamicExpression(ELParser.java:150) 
at org.apache.el.parser.ELParser.CompositeExpression(ELParser.java:46) 
at org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:114) 
at org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:171) 
at org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:216) 
at org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:66) 
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:966) 
at org.apache.jsp.el.el_jsp._jspService(el_jsp.java:126) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
at java.lang.Thread.run(Thread.java:745)

问题描述： 

     1、使用jsp用到域四大域(pageContext,request,session,application),简单的向域中存取数据。 

     2、并且除去pageContext域其他域都没有丝毫问题。都可以出现提示。在我写这篇文章的时候pageContext还是不可以提示

问题解决： 

     我在网上搜索了一下，有一个人也出现了这样的问题，但他是因为少打了一个 } 导致的。而我仔细检查了语法没有错误。 然后又访问了几次，突然又没有问题了。

    总结： 应该是编译器出现的问题。尝试关闭在开启试试。 

     希望这篇文章对你有用！！！