spring--(4)级联属性赋值

两个类以下
//person

public class Person {
	private String name;
	private int age;
	private Car car;
}

//car类

public class Car {
	private String name;
	private String address;
	private double price;
}

以下是在person类中给car类中的属性设值，称之为级联属性赋值

<!-- 配置bean -->
	<bean id="car" class="com.test.spring.beans.Car">
		<property name="name" value="audi"></property>
		<property name="address" value="shanghai"></property>
		<!-- <property name="price" value="200"></property> -->
	</bean>
	
	<!-- 引用bean -->
	<bean id="person" class="com.test.spring.beans.Person">
		<property name="name" value="zhangsan"></property>
		<property name="age" value="30"></property>
		<!-- 使用property的ref属性创建bean之间的引用关系 -->
		<property name="car" ref="car"></property>
		<!-- 为级联属性赋值，首先必须引用级联属性的类 -->
		<property name="car.price" value="35"></property>
	</bean>