Loading classcom.mysql.jdbc.Driver'. This is deprecated. The new driver class iscom.mysql.cj.jdbc.Driver’. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.（已解决）

mysql5及之前的版本使用的是旧版驱动"com.mysql.jdbc.Driver"，

mysql6以及之后的版本需要更新到新版驱动，对应的Driver是"com.mysql.cj.jdbc.Driver"

<environments default="development"><environment id="development"><transactionManager type="JDBC"/><dataSource type="POOLED"><property name="driver" value="com.mysql.cj.jdbc.Driver"/><property name="url" value="jdbc:mysql://localhost:3306/mybatis?useSSL=true&amp;useUnicode=true&amp;characterEncoding=utf-8&amp;serverTimezone=GMT%2B8&amp;allowPublicKeyRetrieval=true"/><property name="username" value="root"/><property name="password" value="123456"/></dataSource></environment></environments>

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