Connections could not be acquired from the underlying database! 特殊情況
今天將項目發佈到服務器運行時出現Connections could not be acquired from the underlying database，項目在本地測試沒有問題 ，就去看了下查看tomcat 日誌 發現mysql的用戶名不是項目中使用的，歷經周折終於找到問題所在 配置數據源時用來存儲mysql用戶名的鍵user與系統某個配置可能衝突 修改爲其他鍵名 這樣錯誤就解決了
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- 1. java.sql.SQLException: Connections could not be acquired from the underlying database!
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