JDBC c3p0 配置异常：java.sql.SQLException: Connections could not be acquired from the underlying database
一、问题描述 在c3p0配置过程中，遇到如下异常： java.sql.SQLException: Connections could not be acquired from the underlying database 此异常为c3p0配置异常，c3p0.xml文件配置没有配置对！ 初始配置如下： <!-- 指定连接数据源的基本属性 -->
<property name="user">ro
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