251--Client does not support authentication protocol requested by server的解決
阿新 • • 發佈:2019-01-11
轉載自:https://blog.csdn.net/XDMFC/article/details/80263215
好不容易安裝好mysql,但又出現了mysql客戶端版本太低的問題。根據參考的這篇部落格,完美的解決了該問題。
1、通過命令列進入解壓的mysql根目錄下mysql目錄下的bin資料夾。
如 F:\>cd mysql-5.7.23\bin
2、登陸資料庫
mysql -uroot -p
3、再輸入root的密碼:
Enter password: ****** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 18 Server version: 8.0.11 MySQL Community Server - GPL Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
4、更改加密方式:
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;
5、更改密碼:該例子中 123為新密碼
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123';
6、重新整理:
mysql> FLUSH PRIVILEGES;
這步完成後我已經成功解決了問題。如果報錯,可以看下面第7步,博主依然給出瞭解決方案
7、
// 如果報錯ERROR 1396 (HY000): Operation ALTER USER failed for 'root'@'%':
則是遠端訪問許可權不正確,先選擇資料庫,檢視一下再更改:
mysql> use mysql; Database changed mysql> select user,host from user; +------------------+-----------+ | user | host | +------------------+-----------+ | mysql.infoschema | localhost | | mysql.session | localhost | | mysql.sys | localhost | | root | localhost | +------------------+-----------+ 5 rows in set (0.00 sec)
最後,感謝參考的該博主。此次轉載只希望幫助更多的人,畢竟在犄角旮旯裡找到這個方案不容易。若有人想要轉載,請註明原博主,謝謝。真的非常感謝原博主。