Kaa 物联网平台搭建(centos7)
(jdk1.8、MariaDB、zookeeper、MongoDB)
一:jdk1.8 安装:
1、终端在/usr/local 目录下创建 java 文件夹,命令行:
mkdir /usr/local/java
2、1.8jdk 压缩包通过 xftp 或 winscp 放置/usr/local/java 目录解压;
3、配置环境变量:vi /etc/prole 末尾配置:
JAVA_HOME=/usr/local/java/jdk1.8.0_66
JRE_HOME=/usr/local/java/jdk1.8.0_66/jre
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$JAVA_HOME/bin:$PATH
export PATH JAVA_HOME CLASSPATH
4、使环境变量生效:sourc /etc/prole;
5. 更新 jdk 的 java 代替方案
$ cd /usr/local/java/jdk1.8.0_66/
$ sudo alternatives --install /usr/bin/java java
/usr/local/java/jdk1.8.0_66/bin/java #将此处修改为自己安装的 jdk 路径
$ sudo alternatives --config java
There are 2 programs which provide 'java'.
Selection Command-----------------------------------------------*
1 /usr/java/jdk1.8.0_60/jre/bin/java
+ 2 /usr/java/jdk1.8.0_60/bin/java
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