spring注解开发---beans注入

<!--导入p,c命名空间 context注解 -->
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:c="http://www.springframework.org/schema/c"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       https://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">
    <context:annotation-config/> <!--必须使用这个标签,才能使用注解-->

    <bean name="cat" class="zhe.xin.pojo.Cat"/>
    <bean name="dog" class="zhe.xin.pojo.Dog"/>
    <bean name="person" class="zhe.xin.pojo.Person">
        <property name="dog" ref="dog"/>
        <property name="cat" ref="cat"/>
        <property name="name" value="小哲"/>
    </bean>

 <bean name="cat" class="zhe.xin.pojo.Cat"/>
 <bean name="dog" class="zhe.xin.pojo.Dog"/>
 <bean name="person" class="zhe.xin.pojo.Person"/>

public class Person {
    @Autowired
    Dog dog;
    @Autowired
    Cat cat;
    String name;
//...get
}

1 <bean name="person" class="zhe.xin.pojo.Person" autowire="byName"/>

    <bean name="dog1" class="zhe.xin.pojo.Dog"/>

    @Qualifier("dog2")
    @Autowired
    Dog dog;