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mysql연결

강사님 mysql 연결 도중 Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/spring/root-context.xml]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate 에러가 나옵니다. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring" xsi:schemaLocation="http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd"> 혹시 코드에 문제가 있는지 알 수 있을까요?? 프레임워크는 3.9 입니다.