JAVA_HOME = jdk path? # new in sys variable
CLASSPATH = .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar # new
add in path = %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;
cmd java
jdk path
原文：http://www.cnblogs.com/iljyya/p/5199578.html
