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开发环境配置

安装Java 8

现在运行以下命令来安装 OpenJDK 8 包

sh
sudo apt install openjdk-8-jdk

MySQL允许远程连接

修改mysql配置文件

sh
sudo vi /etc/my.cnf # 要用sudo
  1. 在 [mysqld] 小节下添加一行:skip-grant-tables=1
  2. 重启 mysqld 服务:systemctl restart mysqld
  3. 使用 root 用户登录到 mysql:mysql -u root

本地服务器访问mysql

sh
mysql -u root -password

常用操作

sql
show databases;

use mysql;

show tables;

select host,user from user;

设置允许远程连接(改表法)

sql
update user set host = '%' where user = 'root';    //这个命令执行错误时可略过 
flush privileges;
select host, user from user;
quit;

设置允许远程连接(授权法)

sql
GRANT ALL PRIVILEGES ON *.* TO 'user'@'%'IDENTIFIED BY 'userpwd' WITH GRANT OPTION;
FLUSH RIVILEGES;
sql
GRANT ALL PRIVILEGES ON *.* TO 'user'@'192.168.32.220'IDENTIFIED BY 'userpwd' WITH GRANT OPTION;
FLUSH RIVILEGES;

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