环境：mysql: 8.0+ ；macos； 64位；
报错主要信息：
/Users/edisonhuang/CodingSpace/VScodeProjects/WebProjects/HTMLTest/web_final/node_modules/mysql/lib/protocol/Parser.js:437
throw err; // Rethrow non-MySQL errors
解决方法：
// 进入mysql 输入密码例如：123456
mysql -u root -p
// 1.执行语句 alter user 'root'@'localhost' identified with mysql_native_password by 密码;
mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.43 sec)
// 2.再执行语句 flush privileges;
mysql> flush privileges;
Query OK, 0 rows affected (0.05 sec)
//3.成功后 退出
mysql> quit
Bye
nodejs环境重启下即可 npm run dev
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