数据库连接断开 Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure - 为了美好的明天的个人空间
报错信息如下: Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 97,130 milliseconds ago. The last packet sent successfully to the server was 24 milliseconds ago. ; SQL []; Communications link failure .... Caused by: com.mysql.jdbc.exceptions.jdbc4.Communic...阅读全文