完成初始化的mysql数据库，没有及时登录修改密码导致默认密码过期，登录后提示：”Your password has expired.To log in you must change it using a client that supports expired passwords”

解决方法

1.停止服务并禁用授权登录

/etc/init.d/mysqld stop  ##关闭mysqld进程
vim /etc/my.cnf
[mysqld]
skip-grant-tables
:wq! #保存退出

2.进入mysql，查看root用户的详细信息

mysql -u root -p
> use mysql
> select * from mysql.user where user='root' \G
---
*************************** 1. row ***************************
                  Host: localhost
                  User: root
           Select_priv: Y
           Insert_priv: Y
           Update_priv: Y
           Delete_priv: Y
           Create_priv: Y
             Drop_priv: Y
           Reload_priv: Y
         Shutdown_priv: Y
          Process_priv: Y
             File_priv: Y
            Grant_priv: Y
       References_priv: Y
            Index_priv: Y
            Alter_priv: Y
          Show_db_priv: Y
            Super_priv: Y
 Create_tmp_table_priv: Y
      Lock_tables_priv: Y
          Execute_priv: Y
       Repl_slave_priv: Y
      Repl_client_priv: Y
      Create_view_priv: Y
        Show_view_priv: Y
   Create_routine_priv: Y
    Alter_routine_priv: Y
      Create_user_priv: Y
            Event_priv: Y
          Trigger_priv: Y
Create_tablespace_priv: Y
              ssl_type:
            ssl_cipher:
           x509_issuer:
          x509_subject:
         max_questions: 0
           max_updates: 0
       max_connections: 0
  max_user_connections: 0
                plugin: mysql_native_password
 authentication_string: *AC241830FFDDC8943AB31CBD47D758E79F7953EA
---！！！---
      password_expired: N
---！！！---
 password_last_changed: 2015-11-11 16:52:49
     password_lifetime: NULL
        account_locked: N
1 row in set (0.00 sec)

3、把password_expired 改成不过期

> update user set password_expired='N' where user='root';
> flush privileges;
> quit

4.把 /etc/my.cnf 的 skip-grant-tables 这行注释掉

5.重启服务

/etc/init.d/mysqld restart

参考文章

https://blog.csdn.net/weixin_45777669/article/details/115672825

https://www.cnblogs.com/apolloren/p/9980046.html