Spring引入外部Bean实现内部注入-----Spring框架

ゞ浴缸里的玫瑰 2024-03-23 18:03 83阅读 0赞

>     <?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="OrderDao" class="com.powernode.spring6.dao.OrderDao"/>
>         <bean id="OrderService" class="com.powernode.spring6.service.OrderService">
>             
>             <property name="orderDao" ref="OrderDao"/>
>         </bean>
>     </beans>
> 
>     <?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="OrderDao" class="com.powernode.spring6.dao.OrderDao"/>
>         <bean id="OrderService" class="com.powernode.spring6.service.OrderService">
>             
>             <property name="orderDao" ref="OrderDao"/>
>         </bean>
>     </beans>

>     import com.powernode.spring6.service.OrderService;
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     public class SpringDITest
>     {
>         @Test
>         public void TestSetDI()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml");
>             OrderService OrderService = applicationContext.getBean("OrderService", OrderService.class);
>             OrderService.generate();
>         }
>     }
> 
> import com.powernode.spring6.service.OrderService; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class SpringDITest \{ @Test public void TestSetDI() \{ ApplicationContext applicationContext = new ClassPathXmlApplicationContext("set-di.xml"); OrderService OrderService = applicationContext.getBean("OrderService", OrderService.class); OrderService.generate(); \} \}

>     package com.powernode.spring6.service;
>     
>     import com.powernode.spring6.dao.OrderDao;
>     
>     public class OrderService
>     {
>         private OrderDao orderDao;
>     
>         public void setOrderDao(OrderDao orderDao)
>         {
>             this.orderDao = orderDao;
>         }
>     
>         //生成订单的业务方法
>         public void generate()
>         {
>             orderDao.insert();
>         }
>     }
> 
>     package com.powernode.spring6.service;
>     
>     import com.powernode.spring6.dao.OrderDao;
>     
>     public class OrderService
>     {
>         private OrderDao orderDao;
>     
>         public void setOrderDao(OrderDao orderDao)
>         {
>             this.orderDao = orderDao;
>         }
>     
>         //生成订单的业务方法
>         public void generate()
>         {
>             orderDao.insert();
>         }
>     }

>     package com.powernode.spring6.dao;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     public class OrderDao
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderDao.class);
>         public void insert()
>         {
>             logger.info("订单生成中");
>         }
>     }
> 
>     package com.powernode.spring6.dao;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     
>     public class OrderDao
>     {
>         private static final Logger logger = LoggerFactory.getLogger(OrderDao.class);
>         public void insert()
>         {
>             logger.info("订单生成中");
>         }
>     }