navicat连接mysql报错1251解决方案

今天下了个 MySQL8.0，发现Navicat连接不上，总是报错1251；

原因是MySQL8.0版本的加密方式和MySQL5.0的不一样，连接会报错。

试了很多种方法，终于找到一种可以实现的：

　　更改加密方式

1.先通过命令行进入mysql的root账户：

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

再输入root的密码：

      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：

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

3.更改密码：654321

      mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '654321';
      Query OK, 0 rows affected (0.35 sec)
  
 

4.刷新：

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

// 如果报错ERROR 1396 (HY000): Operation ALTER USER failed for 'root'@'%'：

则是远程访问权限不正确，先选择数据库，查看一下再更改：

      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)
  
 

Navicat 连接MySQL的密码就是上面更改的新密码（如654321），也是MySQL的登录密码

本文为转载别人转载的文章O(∩_∩)O哈哈~所以没找到原文链接，抱歉，此教程亲测有效，

文章来源: blog.csdn.net，作者：轻狂书生FS，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/LookForDream_/article/details/86490863