2jdk配置

Posted 2020-10-28 sunnyangzs

1. linux环境下
1. 删除自带的openjdk
1. rpm -qa | grep jdk
2. sudo yum remove  xxxxx
2. 下载jdk
1. 从http://learning.happymmall.com/下载
2. 赋予权限
1. sudo chmod 777 jdk-7uxxxxx
3. 在linux下安装
1. 安装jdk    
1. sudo rpm -ivh jdk-7uxxxxxx.rpm
2. 默认安装路径
1. /usr/java/jdk1.7.0_80
4. 环境变量配置
1. sudo vim /etc/profile
2. JAVA_HOME
1. export JAVA_HOME=/usr/java/jdk1.7.0_80
   
3. CLASSPATH
1. export CLASSPATH = .:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/rt.jar:$JAVA_HOME/lib/tools.jar
   
4. PATH
1. export PATH = $JAVA_HOME/bin:$PATH
   
2. win环境下
1. 省略

来自为知笔记(Wiz)