IDEA連接數據庫失敗@localhost failed. [08001] Could not create connection to database server. Attempte

##關於IDEA連接mysql數據庫失敗 Connection to [email protected] failed. [08001] Could not create connection to database server. Attempted reconnect 3 times. Giving up. 我的這個錯誤的原因是URL後面缺少後綴 這個錯誤我的解決方法是在URL後面增加後綴：

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