用户管理基本操作create user zhangsan identified by 'zhangsan'; SELECT current_user(); ←

添加 MySQL YUM 源$wget 'https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm' $sudo rpm -Uvh mysql57-commu

下载安装 配置golang环境 安装go yum install golang 配置GOPATH 安装git2 sudo yum remove git sudo yum install epel-release sudo yum

public void init() throws SQLException { if (inited) { return; } //