有时候需要远程连接MySQL数据库，默认是不可以的，可以参考下面的方法，解决下。
1、登陆自己机器的MySQL数据库：mysql -uroot -p密码
设置root用户可以任意IP访问，代码如下（可选，这里%代表任意，也可以指定IP）:
MySQL>update user set host = '%' where user = 'root';
MySQL>select host, user from user;
2、MySQL>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
予任何主机访问数据的权限
3、MySQL>FLUSH PRIVILEGES;
修改生效
4、MySQL>EXIT
退出MySQL服务器
这样就可以在其它任何的主机上以root身份登录啦！
在其他机器上输入IP和端口（端口默认3306），亲测OK
C:\Users\XXXXX>mysql -uroot -proot -h192.168.0.3 -P3307
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 936
Server version: 5.5.28 MySQL Community Server (GPL)
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