application.xml

<!--掃描包—->
        <context:compent-scan package="com.bdqn.exam"></context:compent-scan>
<!--事務的工廠-->
<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManagert"
    id="transactionManagert"
>
       
 <property name="dataSource" ref="dataSource"></property>

</bean>
<!--打開事務註解-->  
<tx:annotation-driven/>

<!--  打開mvc註解-->
<mvc:annotation-driven/>

<--jdbc數據源的配置工廠-->
<bean>
    <property name="driverClass" value="com.mysql.jdbc.driver">
    <property name="user" value="root">
    <property name="password" value="123">
    <property name="jdbcUrl" value="jdbc:mysql:///exam?characterEncoding=utf-8">
</bean>
<!--mybatis工廠-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlsessionFactory"> 
    <property name="dataSource" value="dataSource"></property>
</bean>
<!--幫助類工廠-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">
    <property name="basepackage" value="com.bdqn.exam.dao">
</bean>

Spring application.xml配置和web.xml配置