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1.問題描述
啟動hibernate測試案例時報錯如下：
2.解決方案：
2.1 第一次解決：MySQL驅動版本太高。使用的hibernate版本為5.1.5.Final，MySQL驅動版本為6.0.6。將MySQL驅動版本替換為5.1.42即可
2.2 第二次解決：未啟動MySQL服務。以管理員身份啟動cmd，運行net start mysql即可（mysql為服務名，有些MySQL版本默認服務名加版本號；eg.mysql57）
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