Mac OS JAVA_HOME设置
个人博客地址:Mac OS JAVA_HOME设置 | 一张假钞的真实世界在MacOS上使用DMG文件安装了Jdk8 之后,在默认路径下找不到JDK的HOME路径:
$ which java
/usr/bin/java
$ ls -l /usr/bin/java
lrwxr-xr-x1 rootwheel74 1262015 /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
$ ls -l /System/Library/Frameworks/JavaVM.framework/Versions
total 8
drwxr-xr-x10 rootwheel34059 20:45 A
lrwxr-xr-x 1 rootwheel 1 1262015 Current -> A
$ ls -l /System/Library/Frameworks/JavaVM.framework/Versions/A/
total 80
drwxr-xr-x47 rootwheel 1598 10 182015 Commands
drwxr-xr-x 4 rootwheel 136 10 182015 Frameworks
drwxr-xr-x14 rootwheel 476822015 Headers
drwxr-xr-x 3 rootwheel 1028 232015 JavaPluginCocoa.bundle
-rwxr-xr-x 1 rootwheel109488 10 182015 JavaVM
drwxr-xr-x 3 rootwheel 102822015 Modules
drwxr-xr-x45 rootwheel 1530 10 182015 Resources
drwxr-xr-x 3 rootwheel 1028 232015 _CodeSignature 在MacOS下可以使用/usr/libexec/java_home命令来定位JAVA_HOME:
$ /usr/libexec/java_home
/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home 设置JAVA_HOME:
export JAVA_HOME=`/usr/libexec/java_home` 检查JAVA_HOME:
$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home 如果安装了多个版本的JDK,可以使用-V命令选项列出所有版本的JAVA_HOME:
$ /usr/libexec/java_home -V
Matching Java Virtual Machines (1):
1.8.0_91, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home
/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home
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