tomcat无法编译jsp文件

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
	org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
	org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
	org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:439)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:497)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

 

root cause

Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
	org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:105)
	org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:929)
	org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:758)
	org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:407)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:497)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.30 logs.
解决办法：将jdk/lib/tools.jar 拷贝到 tomcat/common/lib下重新启动tomcat即可
问题原因：不详
Apache Tomcat/5.0.30

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dwr轻松上路（一)

• 2007-02-24 11:15
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1 楼 sunzhong1030 2008-01-10  

  谢了,我用这个办法,解决问题了