连接mysql报错：errorCode 1251, state 08004,Client does not support authentication protocol requested

Posted 2023-03-10 zhangphil

idea spring项目启动后连接mysql报错：errorCode 1251, state 08004,Client does not support authentication protocol requested by server; consider upgrading MySQL client ...

报错内容摘要：

... errorCode 1251, state 08004

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

网上普遍给出的方案是这样的:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'
flush privileges;

但其实报错的根因是mysql的连接器依赖有些问题，消息提示已经指明，需要升级mysql，具体的说就是升级musql连接器而已，mysql连接器在pom.xml里面有定义，把里面这样写：

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>