Spring @Autowired 用法

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1：在set 上或者对象上添加注解如：

package com.bb.com;import org.springframework.beans.factory.annotation.Autowired;public class A { B b; @Autowired C c; public A (){ System.out.println("加载AAA"); }public B getB() {return b;}@Autowiredpublic void setB(B b) {this.b = b;}public C getC() {return c;}public void setC(C c) {this.c = c;}}

注意导包：import org.springframework.beans.factory.annotation.Autowired;

2：在xml中配置

<?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:context="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd"><bean id="b" class="com.bb.com.B"/><bean id="c" class="com.bb.com.C"/> <bean id="abc" class="com.bb.com.A">  <property name="cc" ref="c"/> </bean> <bean   class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/></beans>

3：目录结构：（下图）

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