spring配置两个db链接报错，求救啊

想在aplicationContext.xml里配置两个db链接，启动Tomcat的时候就报错了
错误如下：
严重: Context initialization failed
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unexpected failure during bean definition parsing
Offending resource: class path resource [applicationContext.xml]
Bean 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Multiple 'property' definitions for property 'dataSource'
Offending resource: class path resource [applicationContext.xml]
Bean 'sqlSessionFactory'
-> Property 'dataSource'
at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:70)

aplicationContext.xml配置是：

<!-- DataSource1  --> 
  <bean id="dataSource1" class="org.apache.tomcat.dbcp.dbcp2.BasicDataSource" destroy-method="close">
    <property name="url" value="jdbc:mysql://localhost:3306/facerecognitiondb"></property>
    <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    <property name="username" value="ccg"></property>
    <property name="password" value="111111"></property>
</bean>  

<!-- DataSource2  --> 
  <bean id="dataSource2" class="org.apache.tomcat.dbcp.dbcp2.BasicDataSource" destroy-method="close">
    <property name="url" value="jdbc:mysql://localhost:3306/faceserverdb"></property>
    <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    <property name="username" value="ccg"></property>
    <property name="password" value="111111"></property>
</bean>  

<!--sqlSessionFactory -->







<!-- transactionManager -->
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">



<!-- enable transaction annotation support -->

class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
abstract="true">



PROPAGATION_REQUIRED

你是不是没有给sqlsessionFactory指定数据源啊？