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Linux安装JDK8

  1. 官网下载JDK , 需要登录

  2. winscp上传后,执行解压命令:tar -zxvf jdk-8u321-linux-x64.tar.gz

  3. 创建JDK目录: mkdir -p /usr/local/jdk1.8.0_321

  4. 复制到指定目录下:cp jdk1.8.0_321/* /usr/local/jdk1.8.0_321/ -r

  5. 修改linux环境配置:vim /etc/profile,末尾处添加如下代码

# java environment
export JAVA_HOME=/usr/local/jdk1.8.0_321
export CLASSPATH=.:${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
export PATH=$PATH:${JAVA_HOME}/bin
  1. 刷新配置文件:source /etc/profile
  2. 检查是否安装成功java -version 或 javac