ots lib 官網下載 -s library acl pre 切換 edi

轉自 http://ningandjiao.iteye.com/blog/2045955?utm_source=tuicool&utm_medium=referral 1.首先安裝所有的JDk：
* Mac自帶了的JDK6，安裝在目錄：/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/下。
* JDK7，JDK8則需要自己到Oracle官網下載安裝對應的版本。自己安裝的JDK默認路徑為：/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk
2. 在用戶目錄下的bash配置文件.bashrc中配置JAVA_HOME的路徑：

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
 

3.創建alias命令動態切換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‘

*驗證* source .bash_profile

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$
 

mac安裝多版本jdk（轉）