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package com.itheima.annotation; 
public interface UserDao { 
	public void save();
}

package com.itheima.annotation;
import org.springframework,stereotype.Repository; @Repository("userDao")
public class UserDaoImpl implements userDao(
	public void save(){
		System.out.println("userdao...save...")；

"package"com.itheima:annotation;
public interface UserService (
	public void save();

package com.itheima.annotation;
import javax.annotation.Resource;
import org.springframework.stereotype Service;
@Service ("userService") 
public class UserServicelmpl implements UserService{ 					@Resource(name-"userpag")
	private UserDao userDao; 
	public void save() {
	this.userDao.save();
	System.out.print("userservice...save...");
	}
}

package com.itheima.annotation;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller; @Contzoller("userController") 
public class UserController {
	@Resource(name="usezService") 
	private Userservice userService; 
	public void save(){
		this.userService.save();
		System.out.println("userController...save...");
	｝
}

<！一分别定义 3 个 Bean 实例质>