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

[root@localhost webapps]# tar -zxvf /package/jdk-7u80-linux-x64.tar.gz 

3. 配置jdk变量

　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

4. java -version

5. 给jdk1.7设置序列号

[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.7.0_80 3

6. 安装jdk1.8

[xxx@localhost home]$ alternatives --install /usr/bin/java java /package/jdk1.8.0_124 2

7.选择jdk对应的数字--切换jdk版本

[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
-----------------------------------------------
* 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)

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。