java.sql.SQLException: Connections could not be acquired from the underlying database!
今天學習連接池c3p0遇到這個錯誤 java.sql.SQLException: Connections could not be acquired from the underlying database! 剛開始還以爲是c3p0-config.xml 配置有問題 看了半天沒錯 之後又以爲是mysql版本的問題 於是去更改mysql的版本 發現還是這個錯誤 在仔細看看這個錯誤Connection
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