windows7 jdk 环境变量添加
JAVA_HOME D:\Java;
PATH %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;
CLASSPATH .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar;
JAVA_HOME D:\Java;
PATH %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;
CLASSPATH .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar;