Idea運行Spring項目報錯 「Web server failed to start. Port 8080 was already in use.」（二）

【日期】：2020/4/7 【問題】：續上次修改端口後（Idea運行Spring項目報錯 「Web server failed to start. Port 8080 was already in use.」（一）），重啓後，又發現新的錯誤 APPLICATION FAILED TO START 　 Description: 　 Web server failed to start. Port 8

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