Spring Bean装配之Autowired注解说明-2

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1.使用
这里写图片描述

这里写图片描述

2.数组及Map的自动注入：

package com.wuyonghu.autowired;public interface BeanInterface {}

package com.wuyonghu.autowired;import org.springframework.stereotype.Component;@Componentpublic class BeanImpl1  implements BeanInterface{}

package com.wuyonghu.autowired;import org.springframework.stereotype.Component;@Componentpublic class BeanImpl2  implements BeanInterface{}

package com.wuyonghu.autowired;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;@Componentpublic class BeanInvoker {    @Autowired    private List<BeanInterface> list;    public void say(){        if(null!=list){            for (BeanInterface bean : list) {                System.out.println(bean.getClass().getName());            }        }else{            System.out.println("自动注入失败");        }    }}

<?xml version="1.0" encoding="UTF-8"?><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:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xsi:schemaLocation="http://www.springframework.org/schema/beans                          http://www.springframework.org/schema/beans/spring-beans-3.1.xsd                          http://www.springframework.org/schema/context                          http://www.springframework.org/schema/context/spring-context-3.1.xsd                          http://www.springframework.org/schema/mvc                          http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">    <context:component-scan base-package="com.wuyonghu" /></beans>

测试代码：

@Test    public void testHello7() {        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");        BeanInvoker resources = (BeanInvoker) context.getBean("beanInvoker");        resources.say();    }

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