spring项目创建

1.idea欢迎页面的java->勾选maven

2.pom.xml文件添加spring核心依赖spring-context

<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.2.0.RELEASE</version> </dependency> </dependencies>

3.创建xml配置文件，使用<bean>管理bean

<bean id="" class=""><bean>

id可自定义类名 class后面接全限定名

4.获取bean

public static void main(String[] args) { //1.初始化(bean工厂)ioc容器 ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml"); //2.调用工厂提供的getBean方法 AccountDaoImpl accountDao=(AccountDaoImpl) context.getBean("accountDao"); accountDao.addAccount(); AccountServiceImpl accountService=(AccountServiceImpl) context.getBean("accountService"); accountService.addAccount(); }