JDK安装

千桐科技2025/6/20小于 1 分钟

1、下载JDK

https://www.oracle.com/java/technologies/javase-jdk11-downloads.html

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn/java/jdk/11.0.9+7/eec35ebefb3f4133bd045b891f05db94/jdk-11.0.9_linux-x64_bin.tar.gz?AuthParam=1609170011_da98f55861b4c10611b658244ef09d9d

2、解压到安装目录

sudo mkdir -p /usr/local/java
sudo tar zxvf jdk-11.0.9_linux-x64_bin.tar.gz -C /usr/local/java/

3、配置环境变量

打开/etc/profile在文件最后添加：

export JAVA_HOME=/usr/local/java/jdk-11.0.9
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

4、在当前bash环境下读取并执行/etc/profile中的命令

source /etc/profile

5、测试是否安装成功

java -version