Perhaps JAVA_HOME does not point to the JDK的解决方法

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Unable to find a javac compiler;Perhaps JAVA_HOME does not point to the JDK

tomcat_home, java_home都已经添加到了环境变量里，但启动jsp的时候却出现了以下的异常

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

解决方案：
只要把JAVA_HOME/lib/tools.jar拷到TOMCAT_HOME/common/lib下，重启动Tomcat，OK

文章引自：http://hi.baidu.com/sleinet水雨田博客

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