连接MySql出现Client does not support authentication protocol requested by server错误

解决办法：

以管理员身份运行dos，并切换到MySql安装目录的bin目录，如图所示：
输入命令mysql -u root -h 127.0.0.1 -p登录到MySql（有密码的话继续输入密码并回车），如图所示：
输入命令use mysql;切换到mysql数据库，如图所示：
输入命令ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';，如图所示：

注意其中的 'root'@'%'中的%代表root用户对应的host值为%（%代表可以使用IP或localhost连接到MySql）、其中的123456代表MySql的登录密码
输入命令flush privileges刷新权限数据表，如图所示：
输入命令quit退出MySql登录，如图所示：

到此，连接出错的问题即可解决。

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连接MySql出现Client does not support authentication protocol requested by server错误

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