不知道为什么我的TOMCAT配置老是出问题,请大家指教一下?
我将JDK安装在C:\Program Files\Java\jdk1.6.0

TOMCAT安装在C:\Program Files\Apache Software Foundation\Tomcat 5.0

JAVA_HOME=C:\Program Files\Java\jdk1.6.0

path=%JAVA_HOME%/bin

classpath=.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar; %JAVA_HOME%
\lib\tools.jar;%CATALINA_HOME%\common\lib\servlet-api.jar

CATALINA_BASE=C:\Program Files\Apache Software Foundation\Tomcat 5.0

CATALINA_HOME=C:\Program Files\Apache Software Foundation\Tomcat 5.0

TOMCAT_HOME=C:\Program Files\Apache Software Foundation\Tomcat 5.0

我在ROOT目录下有一个WebJsp.jsp如下:

<%@ page language= "java " contentType= "text/html;charset=GBK "%>
<%!int number=0;
synchronized void countPeople()
{
number++;

}
%>
<%
countPeople();
%>
你是第 <%out.println(number);%> 个访问本站的客户.
但是在浏览器中用: "http://localhost:8080 "测试时没有出问题,但是用
: "http://localhost:8080/WebJsp.jsp "时,tomcat出现如下报错信息:

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:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
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:106)
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
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

请问一下这时什么原因,为什么 "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 "
显示JAVA_HOME没有指向JDK呢?


[解决办法]
你在境量中的path放了似：D:\Program Files\Java\j2re1.4.2_11\bin 有？
[解决办法]
没设环境变量中的“path”，系统无法调用编译器
[解决办法]
把你jsp里第二行“ <%!int number=0;”的！去掉试试
我的异常网推荐解决方案：The server encountered an internal error () that prevented it from fulfilling this request.,http://www.myexception.cn/java-web/317.html
我的异常网推荐解决方案：org.apache.jasper.JasperException: Unable to compile class,http://www.myexception.cn/j2ee/2308.html