下载

下载页面：https://github.com/alibaba/dragonwell8/releases
下载链接：https://github.com/alibaba/dragonwell8/releases/download/dragonwell-8.10.11_jdk8u322-ga/Alibaba_Dragonwell_8.10.11_x64_linux.tar.gz

上传JDK并解压

1. 上传JDK压缩包到/usr/local目录: jdk1.8.0_144.tar.gz

2. 解压文件：

   tar -xvf jdk1.8.0_144.tar.gz

3. 解压成功即可

   tar -zxvf Alibaba_Dragonwell_8.10.11_x64_linux.tar.gz -C /usr/local/

配置环境变量

1. 修改profile文件：vi /etc/profile

2. 添加配置信息

   export JAVA_HOME=/usr/local/jdk1.8.0_144
   export JRE_HOME=/usr/local/jdk1.8.0_144/jre
   export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
   export PATH=$JAVA_HOME/bin:$PATH

   /usr/local/dragonwell-8.10.11

   export JAVA_HOME=/usr/local/dragonwell-8.10.11
   export JRE_HOME=/usr/local/dragonwell-8.10.11/jre
   export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
   export PATH=$JAVA_HOME/bin:$PATH

   source /etc/profile

3. 测试配置：java -version

   [root@hadoop101 ~]# java -version
   java version "1.8.0_144"
   Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
   Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)