Java LocalSessionFactoryBean.hibernateProperties.hibernate.c3p0.timeout和HibernateTransactionManager.defaultTimeout之间的差异

在我们的项目代码中，我们通过xml初始化slave DB Spring HibernateTransactionManager，如下所示：

<bean id="slaveSessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">com.swiggy.delivery.deliveryboy.model.dao.CustomMySql5Dialect</prop>
                <prop key="hibernate.show_sql">${hibernate.slave.showSql}</prop>
                <prop key="hibernate.format_sql">${hibernate.slave.formatSql}</prop>
                <prop key="hibernate.connection.url">${hibernate.slave.connection.url}</prop>
                <prop key="hibernate.connection.driver_class">com.mysql.jdbc.ReplicationDriver</prop>
                <prop key="hibernate.connection.username">${hibernate.slave.connection.username}</prop>
                <prop key="hibernate.connection.password">${hibernate.slave.connection.password}</prop>
                <prop key="hibernate.c3p0.min_size">${hibernate.slave.c3p0.min_size}</prop>
                <prop key="hibernate.c3p0.max_size">${hibernate.slave.c3p0.max_size}</prop>
                <prop key="hibernate.c3p0.timeout">300</prop>
                <prop key="hibernate.c3p0.max_statements">0</prop>
                <prop key="hibernate.c3p0.idle_test_period">3000</prop>
                <prop key="hibernate.c3p0.max_idle_time_excess_connections">60</prop>
            </props>
        </property>
</bean>

<bean id="slaveTransactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="slaveSessionFactory" />
        <property name="defaultTimeout" value="10" />
</bean>

com.swiggy.delivery.deliveryboy.model.dao.CustomMySQL5方言
${hibernate.slave.showSql}
${hibernate.slave.formatSql}
${hibernate.slave.connection.url}
com.mysql.jdbc.ReplicationDriver
${hibernate.slave.connection.username}
${hibernate.slave.connection.password}
${hibernate.slave.c3p0.min_size}
${hibernate.slave.c3p0.max_size}
300
0
3000
60

这里，我想了解对于DB读取超时，事务期间将使用哪个值，300 ms的

hibernate.c3p0.timeout

值或10 ms的

defaultTimeout

值

为此，我尝试查看Spring和Hibernate文档，但无法得到关于defaultTImeout是否会覆盖Hibernate.c3p0.timeout的明确答案

我的直觉是选择的超时值是300毫秒，但无法确认