JDK的二进制安装

JDK的二进制安装步骤

1. Jdk1.8二进制包下载路径http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

2. 解压到对应安装目录/usr/local/或者/opt/

3. 验证安装/usr/local/jdk1.8.0_211/bin/java -version

1.安装命令

cd /data/tools/

tar -zxf jdk-8u211-linux-x64.tar.gz

mv jdk1.8.0_211 /usr/local/

2.配置Java环境变量

vim /etc/profile

export JAVA_HOME=/usr/local/jdk1.8.0_211/

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$CLASSPATH

export JAVA_HOME ##JAVA 家目录

export PATH ##JAVA命令路径

export CLASSPATH ##运行JAVA系统参数

source /etc/profile ###立即生效环境变量

 

3.验证环境变量

java -version

java version "1.8.0_211"

Java(TM) SE Runtime Environment (build 1.8.0_211-b12)

Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)