Posted on 2015-03-20 10:24
skycity 閱讀(286)
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操作系統
查看當前java版本
$ java -version
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
$ which java
/usr/bin/java
$ ls -l /usr/bin/java
lrwxr-xr-x 1 root wheel 74 12 26 10:24 /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
$
ls -l /System/Library/Frameworks/JavaVM.framework/Versions/total 64
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.4 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.4.2 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.5 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.5.0 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.6 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 12 26 10:24 1.6.0 -> CurrentJDK
drwxr-xr-x 8 root wheel 272 12 26 14:10 A
lrwxr-xr-x 1 root wheel 1 12 26 10:24 Current -> A
lrwxr-xr-x 1 root wheel 59 12 26 10:24 CurrentJDK -> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents
由此可知，當前java所對應的文件是/System/Library/Frameworks/JavaVm.Framework/Vesions/A/Commons/java
/System/Library/Frameworks/JavaVM.framework/Versions/下的jdk 1.4-1.6的版本，全部指向/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents
Lyyb2001