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数据库-异常:com.mysql.jdbc.exceptions.jdbc4.communicatio

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2016-06-06 09:33:131549browse

数据库javamysql异常

异常:com.mysql.jdbc.exceptions.jdbc4.communicationException:communication link failure

last packet sent to the server was 0 ms ago
at sun.refect.nativecon.........等等
我用的是mysql数据库，Java文件可以编译，但是一运行就出现错误

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