<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="productDao" name="dao" class="dao.impl.ProductDaoImpl"></bean>
<bean id="productService" name="service" class="service.impl.ProductServiceImpl">
<!-- 给对象进行赋值-->
<property name="productDao" ref="productDao"></property>
</bean>
</beans>
TestSpring02 .java
package test;
import dao.ProductDao;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import service.ProductService;
/**
* zt
* 2020/9/27
* 11:08
*/
public class TestSpring02 {
@Test
public void test(){
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
// <bean id="productDao" name="dao" class="dao.impl.ProductDaoImpl"></bean>
//根据id拿对象
ProductDao productDao = (ProductDao)ac.getBean("productDao");
System.out.println("productDao"+productDao);
productDao.insert();
//根据name拿对象
ProductDao productDao2 = (ProductDao)ac.getBean("dao");
System.out.println("productDao2"+productDao2);
productDao2.insert();
//根据class拿到
ProductDao productDao3 = (ProductDao)ac.getBean(ProductDao.class);
System.out.println("productDao3"+productDao3);
productDao3.insert();
}
@Test
public void testService(){
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
ProductService productService = (ProductService)ac.getBean(ProductService.class);
System.out.println(productService);
productService.insert();
}
}