用户变量:
C:\Users\WALKER>set java_home
JAVA_HOME=C:\Users\WALKER\work\software\jdk\jdk1.7.0_25
path:
%MY_SQL_BIN%;%ANT_HOME%\bin;%JAVA_HOME%\bin;%M2_HOME%\bin;C:\Users\WALKER\AppData\Roaming\npm;%MAVEN_HOME%\bin;%GRADLE_HOME%\bin
=== install java8.exe,运行的是JDK的安装文件 =========
CMD:
C:\Users\WALKER>set java_home
JAVA_HOME=C:\Users\WALKER\work\software\jdk\jdk1.7.0_25
C:\Users\WALKER>where java
C:\ProgramData\Oracle\Java\javapath\java.exe
C:\Users\WALKER\work\software\jdk\jdk1.7.0_25\bin\java.exe
java8的bin排在了java_home之前,所以执行java-version,显示的是8
C:\Users\WALKER>java -version
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) Client VM (build 25.77-b03, mixed mode, sharing)
====== j安装版感觉不够灵活,先备份java8,以非安装版提供java8 =================
默认C:\Program Files\Java\jdk1.8.0_77,此目录可以拷贝备份到别的地方,以后以非安装版的形式提供java8
cp C:\Program Files\Java\jdk1.8.0_77 --》 C:\Users\WALKER\work\software\jdk\jdk1.8.0_77
卸载java8
配置java_home为java8 path