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Error提示
原因：
mysql8 之前的版本中加密規(guī)則是mysql_native_password婚惫，而在mysql8之后，加密規(guī)則是caching_sha2_password闽撤。那么我們需要把mysql用戶登錄密碼加密規(guī)則還原成mysql_native_password。
解決方法：
1).打開命令行小黑屏栓霜，進入MySQL的bin目錄瘟栖，然后輸入mysql -u root -p，輸入密碼蜡豹，如下所示：
C:\Users\v_xmmxhli>cd C:\Program Files\MySQL\MySQL Server 8.0\bin
C:\Program Files\MySQL\MySQL Server 8.0\bin>mysql -u root -p
Enter password: *****
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 23
Server version: 8.0.12 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>
2).然后輸入
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; #更新一下用戶的密碼
FLUSH PRIVILEGES; #刷新權(quán)限
窗口給出的反應(yīng)是：
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'Mysql';
Query OK, 0 rows affected (0.20 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.05 sec)
3).再次在Navicat里驗證一下麸粮，連接成功
Navicat重試連接
Note：注意中英文單引號不要輸錯了~
