命令安装：
# 1、去官网下载jdk tar.gz文件 wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz # 2、解压下载的jdk文件到 '/usr/local/src' 目录下 tar zxf jdk-8u91-linux-x64.tar.gz -C /usr/local/src/ # 3、为解压后的目录创建软链接 ln -s /usr/local/src/jdk1.8.0_91 /usr/local/jdk # 4、配置环境变量 sed -i '$a JAVA_HOME=/usr/local/jdk CLASSPATH=$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH export JAVA_HOME export PATH export CLASSPATH' /etc/profile source /etc/profile # 5、检测jdk是否安装成功 java -version && echo 'JDK 安装成功 '|| echo 'JDK 安装失败 '
脚本安装：
1 #!/bin/bash 2 wget 3 --no-check-certificate 4 --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" 5 http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz 6 7 tar zxf jdk-8u91-linux-x64.tar.gz -C /usr/local/src/ 8 9 ln -s /usr/local/src/jdk1.8.0_91 /usr/local/jdk 10 11 sed -i '$a 12 JAVA_HOME=/usr/local/jdk 13 CLASSPATH=$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar 14 PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH 15 export JAVA_HOME 16 export PATH 17 export CLASSPATH' /etc/profile 18 19 source /etc/profile 20 21 java -version && echo 'JDK 安装成功 '|| echo 'JDK 安装失败 '