Could not create connection to database server

在做springMVC+Mybatis项目时，出现了Could not create connection to database server的错误，现已解决，提供思路如下：

• 检查MySQL版本和JDBC(mysql-connector-java-…)是否一致。打开MySQL Command Line Client 输入SELECT version() FROM dual看MySQL的版本号,若不一致去下载该版本号的JDBC(示例图如????)

若仍提示该错误，则看第二步????

• 在配置文件mybatis-config.xml找到你连接数据库的url的value,然后在mybatis后加?serverTimezone=UTC(如图????)

另外解决：Loading class com.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. 的办法–同样在mybatis-config.xml中，改为如????(加入’cj’)