com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
发生这个错误的原因是数据库服务已经关闭,也可能是第三方的数据库不允许直接访问。
java中的常见异常
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转载自1397452815.iteye.com/blog/2187400
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