解答例 - 実習課題１ - ４．ディレクティブ

（実習課題１）

以下のJSPページを作成し、どのようなエラーが出るか確かめなさい。

「autoFlush」属性で「false」を指定し、「buffer」属性で「none」を指定する。

解答例

<!-- flush.jsp -->
<!-- TECHSCORE Java JSP 4章 実習課題1 -->
<!-- Copyright (c) 2004 Four-Dimensional Data, Inc. -->

<%@page contentType="text/html; charset=Windows-31J" autoFlush="false" buffer="none"%>
<html>
  <head><title>JSP 4章 実習課題 1</title></head>
<body>
  <h3>JSP 4章 実習課題 1</h3>
</body>
</html>

▼error.txt

出力される例外


----------------ここから----------------

2004-10-19 20:17:04 StandardWrapperValve[jsp]: サーブレット jsp のServlet.service()が例外を投げました
org.apache.jasper.JasperException: /com/techscore/jsp/chapter4/exercise1/flush.jsp(0,0) jsp.error.page.badCombo
        at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
        at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:428)
        at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:140)
        at org.apache.jasper.compiler.Validator$PageDirectiveVisitor.visit(Validator.java:242)
        at org.apache.jasper.compiler.Node$PageDirective.accept(Node.java:280)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
        at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1070)
        at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:1076)
        at org.apache.jasper.compiler.Node$Root.accept(Node.java:232)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
        at org.apache.jasper.compiler.Validator.validate(Validator.java:581)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:230)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:369)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:473)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:190)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
        at EncodingFilter.doFilter(EncodingFilter.java:23)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:700)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
        at java.lang.Thread.run(Thread.java:534)

----------------ここまで----------------

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