java项目连接jdbc报错：com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server

java项目连接jdbc报错：com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server

原因：相关jar包版本太低

解决方法：下载最新版的mysql-connector-java即可