com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:CommunicationslinkfailureLast...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago. 求解决办法~! 515994060@qq.com
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