Spring 引用注入setter

public class Bean2User {
	public void Test() {
		System.out.println("bean2 use obj ...");
	}
}

//setter注入
public class Bean2 {
	private String name;
	private Integer age;
	private Bean2User use;
	
	public void setUse(Bean2User use) {
		this.use = use;
	}
	// 提供要注入的属性对应的setter方法
	public void setName(String name) {
		this.name = name;
	}
	public void setAge(Integer age) {
		this.age = age;
	}
	public void show() {
		use.Test();
		System.out.println("bean2:" + name + "," + age);
	}
}

	<!-- setter注入 -->
	<!-- name:属性名 -->
	<!-- value:简单类型的值 -->
	<!-- ref:引用别的Bean ，beanId/beanName -->
	<bean id="bean2" class="com.hao947.bean.Bean2">
		<property name="name" value="hao947"/>
		<property name="age" value="947"/>
		<property name="use" ref="hao947"/>
	</bean>
	<!-- 为一个类注入引用类型对象，必须将该对象设置Spring的bean-->
	<!-- 声明bean2中使用的引用类型资源 -->
	<bean id="hao947" class="com.hao947.bean.Bean2User"> </bean>