Sqoop連接MySQL報異常。這個異常是數據庫只允許localhost或127.0.0.1訪問，不允許遠程訪問。我用的本機IP都不行。
解決辦法：修改訪問權限即可。
打開cmd，進入mysql
flush privileges是為了將權限更新操作刷新到內存中，而不用下次啟動時生效。
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