实验一 Spring IOC 基本操作

实验一 Spring IOC 基本操作 实验任务一：创建项目，引入坐标

坐标代码

  
    
      junit
      junit
      4.11
      test
    
    
      org.springframework
      spring-context
      4.3.6.RELEASE
    
    
    org.springframework
    spring-beans
    4.3.6.RELEASE
  
    
      org.springframework
      spring-core
      4.3.6.RELEASE
    
    
      org.springframework
      spring-expression
      4.3.6.RELEASE
    
    
      commons-logging
      commons-logging
      1.2
    
  

实验任务二：配置Spring框架配置文件

applicationContext.xml

实验任务三：创建UserDao接口

package com.axx.ioc;

public interface UserDao {
    public void say();
}

实验任务四：创建UserDao接口实现类UserDaoImpl

package com.axx.ioc;

public class UserDaoImpl implements UserDao{
    @Override
    public void say() {
        System.out.println("userDao say hello World!");
    }
}

实验任务五：创建IOC测试类

package com.axx.ioc;

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

public class TestIoC {
    public static void main(String[] args) {
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        UserDao userDao = (UserDao)applicationContext.getBean("userDao");
        userDao.say();
    }

}

运行如图

实验任务六 ：创建UserService接口

package com.axx.io;

public interface UserService {
    public void say();
}

实验任务七：创建UserService接口实现类UserServicempl

package com.axx.io;

import com.axx.ioc.UserDao;

public class UserServiceImpl implements UserService {

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

    @Override

    public void say() {
        this.userDao.say();
        System.out.println("userService say hello World!");
    }
}

实验任务八：更改Spring配置文件

实验任务八：创建DI测试类

package com.axx.ioc;

import com.axx.io.UserService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestDI {
    public static void main(String[] args) {
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        UserService userService = (UserService)applicationContext.getBean("userService");
        userService.say();
    }
}

运行如图