mysql Client does not support authentication protocol requested by server; consider upgrading MySQL

1 先在cmd下，用下面的命令登錄MySQL

mysql -u root -p

2 在進行下面的修改操作（二者選其一運行就好）

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '你的密碼';
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密碼';

 3 查看修改結果

SELECT plugin FROM mysql.user WHERE User = 'root';