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September 25, 2017 06:42
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| # Mac下同时安装多个版本的JDK | |
| 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/](http://www.jenv.be/) | |
| [原文链接](http://ningandjiao.iteye.com/blog/2045955) |
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