java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long

MySQL更新到8.0.11之后连接数据库时会报出错误

Your login attempt was not successful, try again.
Reason: Could not get JDBC Connection; nested exception is java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long

解决方法:将mysql连接的版本改为8.0.11即可

<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <!--  <version>5.1.25</version>-->
            <version>8.0.11</version>
        </dependency>