mysql8.0.11登陆mycat1.6.5报密码错误，但是用户密码配置无问题

将mycat部署完成之后，处于正常运行的状态下，使用mysql8.0.11客户端版本登陆mycat，经过多次登陆访问，都是无法访问，提示密码错误（Access denied for user 'user', because password is error）。 mysql -uuser -puser -h127.0.0.1 -P3306 mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 1045 (HY000): Access denied for user 'user', because password is error mysql --version mysql Ver 8.0.11 for linux-glibc2.12 on x86_64 (MySQL Community Server - GPL)

后将mysql更换为5.7.20，能够正常访问mycat1.6.5版本 mysql -uuser -puser -h127.0.0.1 -P3306 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1015 Server version: 5.6.29-mycat-1.6.5-release-20180122220033 MyCat Server (OpenCloundDB)

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mysql> exit mysql --version mysql Ver 14.14 Distrib 5.7.20, for linux-glibc2.12 (x86_64) using EditLine wrapper 初步验证是由于MYSQL在8.0.4的版本中，将数据库用户的默认认证机制变更为“caching_sha2_password”