踩坑前奏

连接MariarDB

没驱动

Driver class 'org.mariadb.jdbc.Driver' could not be found, make sure the 'MariaDB' driver (jar file) is installed.
org.mariadb.jdbc.Driver
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正式开始

查看数据库版本

 ## 下载连接 参考文章 没1个版本号一样的，随便选1个，应该没问题 

Connection failed. Verify all connection parameters and confirm that the appropriate driver is installed.
Could not connect to HostAddress{host='192.168.1.18', port=3306, type='master'}. Host '10.0.0.2' is not allowed to connect to this MariaDB server
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改表法www.pianshen.com/article/196…还有授权法

Connection failed. Verify all connection parameters and confirm that the appropriate driver is installed.
Could not connect to HostAddress{host='192.168.*.*', port=3306, type='master'}. Host '10.0.*.*' is not allowed to connect to this MariaDB server
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重启数据库

禁用再启用一下，相当于重启 

yaolunhui

MariaDB创建远程用户访问，并设置只允许访问一个数据库.

-- 创建用户 create user 'user'@'%'  identified by 'mm123456';

--示例1，允许所有从任意地址登录的用户： create user 'ActionNet'@'%' identified by 'zxc123';

--示例2，允许从192.168.199.100登录的用户： create user 'ActionNet'@'192.168.199.100' identified by 'zxc123'; grant all privileges on road.* to 'user'@'%';

-- 示例：授予任意地址登录ActionNet用户所有数据库所有权限 GRANT ALL ON *.* TO 'ActionNet'@'%';

flush privileges;

总算连上了 

总结

java连数据库的jar包是对应数据库研发方提供的，所以应到对应数据库官网下载

来源 https://juejin.cn/post/7043427931414069285

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