相似的，创建 maven 工程，配置pom.xml 文件，具体可以参考上一篇博文：
然后我们在 src/main/java 下创建一个新的package : cn.itcast.xmlanno, 并在当前包下创建 BookDao.java, OrdersDao.java:
BookDao.java:
package cn.itcast.xmlanno;public class BookDao { public void book(){
System.out.println("book......");
}
}OrdersDao.java:
package cn.itcast.xmlanno;public class OrdersDao { public void buy(){
System.out.println("ordersdao......");
}
}在 resources 下创建 applicationContext.xml，同时写入注解和配置文件方式 ：
<?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" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- bean definitions here --> <context:component-scan base-package="cn.itcast"></context:component-scan> <bean id="bookDao" class="cn.itcast.xmlanno.BookDao"></bean> <bean id="bookService" class="cn.itcast.xmlanno.BookService"></bean> <bean id="ordersDao" class="cn.itcast.xmlanno.OrdersDao"></bean></beans>
在 cn.itcast.xmlanno 下创建 BookService.java, 通过注解方式得到BookDao 和 OrdersDao 对象：
package cn.itcast.xmlanno;import javax.annotation.Resource;public class BookService { //得到BookDao 和 OrdersDao 对象
@Resource(name = "bookDao") private BookDao bookDao; @Resource(name = "ordersDao") private OrdersDao ordersDao; public void add(){
System.out.println("add........");
bookDao.book();
ordersDao.buy();
}
}我们创建一个测试类 TestUser.java，来进行测试：
package cn.itcast.xmlanno;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestUser { @Test
public void TestBook(){
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
BookService bookService = (BookService) context.getBean("bookService");
bookService.add();
}
}运行测试文件，输出下列结果：
原文出处：https://www.cnblogs.com/weixuqin/p/9501631.html