Spring Bean的属性注入方式

<bean id="car" class="nwtxxb.di.Car">
  <constructor-arg index="0" type="java.lang.String" value="保时捷"></constructor-arg>
  <constructor-arg index="1" type="double" value="2000000"></constructor-arg>
</bean>

<bean id="car" class="nwtxxb.di.Car">
  <property name="name" value="捷豹"/>
  <property name="price" value="500000"/>
</bean>

<props>
  <prop key="company">nwtxxb</prop>
  <prop key="price">100000</prop>
</props>