springcloud启动报错：create connection SQLException, url: jdbc:mysql://localhost:3306/db2019?useUnicode=t

项目场景：

springcloud阿里巴巴支付模块项目构建

问题描述

启动spring cloud时数据源报错：

com.alibaba.druid.pool.DruidDataSource   : create connection SQLException, url: jdbc:mysql://localhost:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false, errorCode 1251, state 08004com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client

解决方案：

更改mysql-connect版本，改为8.0.23，application.yml
文件中spring datasource mysql驱动更改为com.mysql.cj.jdbc.Driver，如下图