com.mysql.jdbc.CommunicationsException
MESSAGE: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.net.SocketException
MESSAGE: Software caused connection abort: socket write error
解决方式:编辑/etc/my.cnf(windows下为my.ini),将超时时间设置为10年,在[mysqld]后面加入:
wait_timeout=315360000