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win10 配置 java jdk 环境变量
适用于 windows server 2012、 windows server 2014+
一、配置环境变量
①新建变量：新建JAVA_HOME，值输入JDK安装路径
language
JAVA_HOME
C:\Program Files\Java\jdk1.8.0_144 ②新建CLASSPATH变量，值引用JAVA_HOME，如下
（注意：前面有个点".",后面有个分号“;”，都是英文半角的）
language
CLASSPATH
.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;③编辑已存在的变量 Path
language
Path
%JAVA_HOME%\jre\Bin;%JAVA_HOME%\Bin;二、测试
language
---键入 java 命令 或 java -version 命令，此命令只能检测出是否安装了jre,但看不出是否安装了jdk
java
java -version
language
---键入 javac 命令 或 javac -version 命令
javac -version
javac
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