新框架的简单demo上线一晚上后，简单数据源出现了这么一个问题：com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:Nooperationsallowedafterconnectionclosed.atsun.reflect.NativeConstructorAccessorImpl.newInstance0(N......
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MySQLNonTransientConnectionException: No operations allowed after connection closed.
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