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Mac下同时安装多个版本的JDK #2

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v5tech opened this issue Sep 16, 2014 · 0 comments
Open

Mac下同时安装多个版本的JDK #2

v5tech opened this issue Sep 16, 2014 · 0 comments

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@v5tech
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v5tech commented Sep 16, 2014

Mac自带了的JDK6,安装在目录:/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/下。

JDK7,JDK8则需要自己到Oracle官网下载安装对应的版本。自己安装的JDK默认路径为:/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk

1. 在用户目录下的bash配置文件.bashrc中配置JAVA_HOME的路径:

export JAVA_6_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
export JAVA_7_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0.jdk/Contents/Home
export JAVA_8_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home
export JAVA_HOME=$JAVA_7_HOME

2. 创建alias命令动态切换JAVA_HOME的配置

alias jdk8='export JAVA_HOME=$JAVA_8_HOME'
alias jdk7='export JAVA_HOME=$JAVA_7_HOME'
alias jdk6='export JAVA_HOME=$JAVA_6_HOME'

3. 验证

CNxnliu:Versions xnliu$ java -version
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
CNxnliu:Versions xnliu$ jdk8
CNxnliu:Versions xnliu$ java -version
java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)
CNxnliu:Versions xnliu$

或使用http://www.jenv.be/

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