解決Navicat鏈接MySQL老是報錯1251的方法

今天下了個 MySQL8.0，發現Navicat鏈接不上，老是報錯1251；

緣由是MySQL8.0版本的加密方式和MySQL5.0的不同，鏈接會報錯。

試了不少種方法，終於找到一種能夠實現的：

　　更改加密方式

1.先經過命令行進入mysql的root帳戶：

1	PS C:\Windows\system32> mysql -uroot -p

再輸入root的密碼：

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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>

2.更改加密方式：

1 2	mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; Query OK, 0 rows affected (0.10 sec)

3.更改密碼：

1 2	mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; Query OK, 0 rows affected (0.35 sec)

4.刷新：

1 2	mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.28 sec)

// 若是報錯ERROR 1396 (HY000): Operation ALTER USER failed for 'root'@'%'：

則是遠程訪問權限不正確，先選擇數據庫，查看一下再更改：

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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)