Spring基本知识——入门3

public class Master {
private String name;
private Dog dog;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Dog getDog() {
return dog;
}
public void setDog(Dog dog) {
this.dog = dog;
}
}

public class Dog {

private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}

<!-- 配置一个master对象 当配置为byName时，需要容器配置一个id为dog的bean（Master类中属性为dog），
当配置为byType时，需要容器配置一个id名称随便，只要class是Dog的对象即可的bean
当配置为byType时，存在n个Dog类的bean时，符合byName的bean会被注入
-->
<bean id="master" class="com.hsp.autowire.Master" autowire="byName">
<property name="name">
<value>顺平</value>
</property>
<!-- <property name="dog" ref="dog11"></property> -->
</bean>
<!-- 配置dog对象 -->
<bean id="dog2"  class="com.hsp.autowire.Dog" >
<property name="name" value="小黄"/>
<property name="age" value="3"/>
</bean>
<bean id="dog"  class="com.hsp.autowire.Dog" >
<property name="name" value="小白"/>
<property name="age" value="4"/>
</bean>

Master us = (Master)app.getBean("master");
System.out.println("feng:    "+us.getName()+"    "+us.getDog().getName());