struts2 错误，高手来帮我一把，新手。
严重: Javac exceptionUnable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:106)
at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Unknown Source)
自己学习struts2 ,根据教程一步一步，tomcat 启动的时候就包这样的错误，是不是环境有问题？ 待高手来解，，，，，小妹感激不尽。 --------------------编程问答-------------------- com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
看看是不是你的JDK没有绑定tomcat --------------------编程问答-------------------- 怎么绑定？？？？？？
--------------------编程问答--------------------
检查你的系统JAVA_HOME这个环境变量是否配置了，是否配置正确了。检查方法：进入dos环境，使用java -version就可以看到效果。
--------------------编程问答-------------------- window preferences 找到tomcate 下面有个jdk 看看选中的是不是你配置的那个JDK
--------------------编程问答--------------------
在环境变量中的用户变量设置JAVA_HOME为你的jdk安装路径
--------------------编程问答--------------------
--------------------编程问答--------------------
谢谢大家，这个问题是解决了，但是有出现了新的问题。
--------------------编程问答--------------------
http://bbs.csdn.net/topics/390477871
--------------------编程问答--------------------
环境变量的问题、
--------------------编程问答--------------------
Perhaps JAVA_HOME does not point to the JDK可能 JAVA_HOME 变量没有指向JDK地址
补充：Java , Web 开发
