Javaques：Clientdoesnotsupportauthenticationprotocolrequestedbyserver；Accessdenieduser‘roo

JDBC连接MySQL 8版本时eclipse出现

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


或者

Access denied for user&＃39;root&＃39;&＃64;&＃39;localhost&＃39; (using password: NO)


可能是由于navicat版本的问题造成连接失败。mysql8 之前的版本中加密规则是mysql_native_password,而在mysql8之后,加密规则是caching_sha2_password

解决&＃xff1a;
1.命令窗口输入mysql -u root -p 输入密码陷阱如mysql
2.命令窗口输入use mysql;
3.接着输入alter user ‘root’&＃64;‘localhost’ identified with mysql_native_password by ‘密码’;
4.接着输入输入flush privileges; 刷新权限&＃xff0c;使修改生效&＃xff0c;quit再去连接下就好了。