本文為大家分享了Linux jdk安裝多個版本切換的具體方法，供大家參考，具體內容如下
1. 上傳jdk7 和 jdk8 包
2. 解壓
[root@localhost webapps]# tar -zxvf /package/jdk-7u80-linux-x64.tar.gz
3. 配置jdk變量
vi /etc/profileexport JAVA_HOME=/package/jdk1.7.0_80export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin
4. java -version
5. 給jdk1.7設置序列號
[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.7.0_80 3
6. 安裝jdk1.8
[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.8.0_124 2
7.選擇jdk對應的數字--切換jdk版本
[root@localhost ~]# java -versionjava version "1.7.0_80"Java(TM) SE Runtime Environment (build 1.7.0_80-b15)Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)[root@localhost ~]# alternatives --config javaThere are 3 programs which provide 'java'. Selection Command-----------------------------------------------* 1 /package/jdk1.8.0_121/java 2 /package/jdk1.8.0_121/bin/java + 3 /package/jdk1.7.0_80/bin/javaEnter to keep the current selection[+], or type selection number: 2[root@localhost ~]# java -versionjava version "1.8.0_121"Java(TM) SE Runtime Environment (build 1.8.0_121-b13)Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VEVB武林網。
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