同样的文件保存后就运行不了怎么回事?
疯了!
为什么源文件可以运行,只是打开其中一个.jsp文件后点击保存在关闭,注!没做任何改动!!重新运行就有问题了。报错如下:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP An error occurred at line: 6 in the jsp file: /listboard.jsp Generated servlet error: [javac] Compiling 1 source file G:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\11\listboard_jsp.java:52: package connection does not exist connection.ConnPool pool = null; ^ An error occurred at line: 6 in the jsp file: /listboard.jsp Generated servlet error: G:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\11\listboard_jsp.java:54: package connection does not exist pool = (connection.ConnPool) pageContext.getAttribute("pool", PageContext.APPLICATION_SCOPE); ^ An error occurred at line: 6 in the jsp file: /listboard.jsp Generated servlet error: G:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\11\listboard_jsp.java:57: package connection does not exist pool = (connection.ConnPool) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "connection.ConnPool"); ^ 3 errors at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:130) at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293) at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:353) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:370) 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 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)