JPS作成でコンパイルエラーがおこっています。 考えたのですがどこがわるいのかわかりません。。。 アドバイスお願いいたします <%@page contentType="text/html; charset=Windows-31j"%> <%@page import="java.util.Enumeration"%> ＜%@ page session="true" %＞

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<%! Enumeration names=session.getAttributeNames(); %> <% while(names.hasMoreElements()){ %> <%! String kkk=(String)names.nextElement(); %> <%if(kkk!=null){ out.println(kkk+"
"); }else{ out.println(""); } } %> エラーメッセージ 致命的: サーブレット jsp のServlet.service()が例外を投げました org.apache.jasper.JasperException: JSPのクラスをコンパイルできません: JSPファイル: /B28_HelloWeb_Output.jsp の中の11行目でエラーが発生しました session cannot be resolved 8: 9: 10: <%! 11: Enumeration names=session.getAttributeNames(); 12: %> 13: <% 14: while(names.hasMoreElements()){ Stacktrace: at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93) at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330) at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:298) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Unknown Source)