Spring is integrated with MyBatis, and the data source is c3p0. why do you need to introduce the jar package spring-jdbc? (such as the following code) - Codes Helper

the following error should be related to the injection of the data source! But why can it be solved by introducing spring-jdbc as a jar package?

spring-jdbcjar:():
: Exception encountered during context initialization - cancelling refresh attempt: 
org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name "sqlSessionFactory" defined in file 
[C:\Users\123\IdeaProjects\SpringDemo\target\seckill\WEB-INF\classes\spring\spring-dao.xml]:
 Error setting property values;
 nested exception is org.springframework.beans.PropertyBatchUpdateException; 
nested PropertyAccessExceptions (1) are:

PropertyAccessException 1: org.springframework.beans.MethodInvocationException:
 Property "dataSource" threw exception; 
nested exception is java.lang.NoClassDefFoundError: 
org/springframework/jdbc/datasource/TransactionAwareDataSourceProxy

the configuration of the data source in spring-dao.xml is attached as follows:

<!--2.-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <!---->
    <property name="driverClass" value="${driver}" />

    <!--  urluserpassword -->
    <property name="jdbcUrl" value="${url}" />
    <property name="user" value="${jdbc.username}" />
    <property name="password" value="${password}" />

    <!--c3p0-->
    <property name="maxPoolSize" value="30"/>
    <property name="minPoolSize" value="10"/>
    <!--commit-->
    <property name="autoCommitOnClose" value="false"/>

    <!---->
    <property name="checkoutTimeout" value="1000"/>
    <!---->
    <property name="acquireRetryAttempts" value="2"/>
</bean>



<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <!--sql:mapperxml-->
    <property name="mapperLocations" value="classpath:com/imooc/mappers/*.xml"/>
</bean>