1. 下載 java
離線下載
wget --no-COOKIEs --no-check-certificate --header "COOKIE: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-COOKIE” “http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.tar.gz"
2. 解壓
將下載的 jdk-8u141-linux-x64.tar.gz 拷貝致 opt 目錄
mkdir /opt/java/ cd /opt/ tar -zxvf jdk-8u141-linux-x64.tar.gz -C java
3. 創建軟連接
cd /bin sudo ln -s /opt/jdk1.8.0_141/bin/java java
3. 配置環境變量
sudo vi /etc/profile
在最後加入
export JAVA_HOME=/opt/java/jdk1.8.0_141 export PATH=${JAVA_HOME}/bin:${PATH}
保存退出, 最後使之生效
source /etc/profile
4. 驗證
java -version
結果:
java version "1.8.0_141" Java(TM) SE Runtime Environment (build 1.8.0_141-b15) Java HotSpot(TM) 64-Bit Server VM (build 25.141-b15, mixed mode)
附錄：下面看下wget下載java8離線安裝包 for linux
wget --no-COOKIEs --no-check-certificate --header “COOKIE: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-COOKIE” “http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.tar.gz”
[ljg58026 ] Ubuntu 16.04 安裝 java 8的方法已經有311次圍觀
