Linux安装多个jdk版本进行切换
本文为大家分享了Linux jdk安装多个版本切换的具体方法，供大家参考，具体内容如下
1. 上传jdk7 和 jdk8 包
2. 解压
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[root@localhost webapps]# tar -zxvf /package/jdk-7u80-linux-x64.tar.gz
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3. 配置jdk变量
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vi /etc/profile
export JAVA_HOME=/package/jdk1.7.0_80
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
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4. java -version
5. 给jdk1.7设置序列号
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[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.7.0_80 3
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6. 安装jdk1.8
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[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.8.0_124 2
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7.选择jdk对应的数字--切换jdk版本
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[root@localhost ~]# java -version
java 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 java
There are 3 programs which provide 'java'.
Selection Command
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* 1 /package/jdk1.8.0_121/java
2 /package/jdk1.8.0_121/bin/java
+ 3 /package/jdk1.7.0_80/bin/java
Enter to keep the current selection[+], or type selection number: 2
[root@localhost ~]# java -version
java 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)
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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