自动装配

水深无声 2023-06-08 03:11 18阅读 0赞

bean7：配置文件修改后

<?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">
    	<context:annotation-config/>
    	
    	<bean id="userDao" class="com.student.annotation.UserDaoImpl"></bean>
    	<bean id="userService" class="com.student.annotation.UserServiceImpl" autowire="byName"></bean>
    	<bean id="userController" class="com.student.annotation.UserController " autowire="byName"></bean>
    </beans>

UserService加上set方法后：

package com.student.annotation;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Service;
    
    @Service("userService")
    public class UserServiceImpl implements UserService {
    	@Resource(name="userDao")
    	private UserDao userDao;
    	@Override
    	public void say() {
    		this.userDao.say();
    		System.out.println("userService 加载完成！！！");
    	}
    	public UserDao getUserDao() {
    		return userDao;
    	}
    	public void setUserDao(UserDao userDao) {
    		this.userDao = userDao;
    	}
    	
    
    }

Uservice也加上set方法：

package com.student.annotation;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Controller;
    
    @Controller("userController")
    public class UserController {
    	@Resource(name="userService")
    	private UserService userService;
    	public void say()
    	{
    		this.userService.say();
    		System.out.println("UserController加载完成");
    	}
    	public UserService getUserService() {
    		return userService;
    	}
    	public void setUserService(UserService userService) {
    		this.userService = userService;
    	}
    
    }

运行结果：

十月 15, 2019 7:52:02 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
    信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@2b71fc7e: startup date [Tue Oct 15 19:52:02 CST 2019]; root of context hierarchy
    十月 15, 2019 7:52:02 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    信息: Loading XML bean definitions from class path resource [com/student/annotation/bean7.xml]
    userDao已经加载加载完成！！
    userService 加载完成！！！
    UserController加载完成