解决Connections could not be acquired from the underlying database!的问题
2016-08-07 21:08
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Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!
做Spring+Mybatis的项目，报错
jdbc.properies:
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/seckill
username=root
password=root
spring-dao.xml:
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driver}"/>
<property name="jdbcUrl" value="${url}"/>
<property name="user" value="${username}"/>
<property name="password" value="${password}"/>
如果不用jdbc配置文件直接写就可以。
最后发现是username的问题，好像改个名就可以，比如：usernamex=root
<property name="user" value="${usernamex}"/>
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