bean装配--auto

1，Dao

package com.songyan.autoZhuangpei;

public interface UserDao {
    public void say();

}

package com.songyan.autoZhuangpei;

import org.springframework.stereotype.Repository;


public class UserDaoImpl implements UserDao {
    
public  void say() {
    System.out.println("dao say   ");

}
}

 

2，Service

package com.songyan.autoZhuangpei;

public interface UserService {
    public void say();
}

package com.songyan.autoZhuangpei;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;


public class UserServiceImpl implements UserService {

    private UserDao userDao;
    
    public UserDao getUserDao() {
        return userDao;
    }

    public void setUserDao(UserDao userDao) {
        this.userDao = userDao;
    }

    public  void say() {
        userDao.say();
        System.out.println("service   say");
    
    }
}

 

3，Servlet

package com.songyan.autoZhuangpei;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;


public class UserController {

    
    private UserService userService;
    public UserService getUserService() {
        return userService;
    }
    public void setUserService(UserService userService) {
        this.userService = userService;
    }
    public void say(){
        userService.say();
        System.out.println("controller say");
    }
    

}

 

4，配置

<?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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
    <bean id="userDao" class="com.songyan.autoZhuangpei.UserDaoImpl" autowire="byName"/>
    <bean id="userService" class="com.songyan.autoZhuangpei.UserServiceImpl"  autowire="byName"/>
    <bean id="userContraller" class="com.songyan.autoZhuangpei.UserController" autowire="byName"/>
    
</beans>

 

5，Test

package com.songyan.autoZhuangpei;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestZhujie {
    public static void main(String[] args) {
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("com/songyan/autoZhuangpei/beans6.xml");
        UserController userController=(UserController)applicationContext.getBean("userContraller");
        userController.say();
        
    }

}

6，结果