由于mysql5.7改变了默认的强制更新密码策略，提示：错误号码1862

Your password has expired. To log in you must change it using a client that supports expired passwords.

 

正确的姿势应该是：依次执行下列语句

1. 更新密码

SET PASSWORD = PASSWORD('newpassword');

 

2. 设置密码永不过期(可选)

ALTER USER 'root'@'localhost' PASSWORD EXPIRE;

 

3. 刷新

flush privileges;

 

完成上面三个操作后，退出。用新密码重新连接即可。