- 下载JDK包
官网：https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html - 解压
sudo mkdir -p /usr/local/lib/jdk/jdk11 sudo tar -zxvf jdk-11.0.15_linux-x64_bin.tar.gz -C /usr/local/lib/jdk/jdk11/
- 设置环境变量
sudo vim /etc/profile 尾部添加: export JAVA_HOME=解压位置(/usr/local/lib/jdk/jdk11/jdk-11.0.15) export CLASSPATH=.:${JAVA_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH - 重启并测试
java javac java -version
