max os x下查找java_home

whereis java

能看到

/usr/bin/java

ls -l /usr/bin/java

发现只不过是一个link

lrwxr-xr-x 1 root wheel 74 12 3 15:37 /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java

还是没找到在哪里，看到一篇文章

https://dzone.com/articles/java-findingsetting

使用命令/usr/libexec/java_home -V

1.8.0_77, x86_64: “Java SE 8” /Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home

结果就出来了。