JDK安装配置

一、Windows

二、Linux

  1、下载jdk压缩包

    wget https://download.oracle.com/java/19/latest/jdk-19_linux-x64_bin.tar.gz

  2、解压

    tar -xvf jdk-19_linux-x64_bin.tar.gz

  3、配置环境变量

    ①:vim ~/.bashrc

    ②:在末尾添加以下内容(路径注意修改)
      export JAVA_HOME=/path/to/jdk-19.0.1
      export JRE_HOME=${JAVA_HOME}/jre
      export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
      export PATH=${JAVA_HOME}/bin:$PATH

    ③:环境变量生效
      source ~/.bashrc

 

三、Mac 

  1.下载JDK :https://www.oracle.com/java/technologies/downloads/#java8-mac

  2.安装

  3.配置环境变量

    1)找到JDK,路径为:/Library/Java/JavaVirtualMachines/jdk1.8.0_321.jdk/Contents/Home

    2)打开终端,在home下创建一个 .bash_profile的隐藏配置文件 touch .bash_profile

    3)open -e .bash_profile 打开配置文件

    4)配置如下内容:

# JDK
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_321.jdk/Contents/Home
PATH=$JAVA_HOME/bin:$PATH:.
CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:.
export JAVA_HOME
export PATH
export CLASSPATH

    5)保存,然后在终端输入 source .bash_profile使配置文件生效

    6)验证环境变量是否配置成功

yangyongjie@MacBook-Air-of-Yang ~ % echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_321.jdk/Contents/Home
yangyongjie@MacBook-Air-of-Yang ~ % 
yangyongjie@MacBook-Air-of-Yang ~ % java -version
java version "1.8.0_321"
Java(TM) SE Runtime Environment (build 1.8.0_321-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.321-b07, mixed mode)

    查看JDK安装路径:java -verbose

 

  homebrew 安装openjdk:

  

 

END.

posted @ 2022-03-14 19:15  杨岂  阅读(33)  评论(0编辑  收藏  举报