使用spring自动注入方式实现工厂模式提高程序可扩展性

package com.example.common.factory;

import com.bozhong.nursestaff.service.MessageReminderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.util.Map;

/**
 * 消息提醒工厂
 **/
@Component
public class MessageReminderFactory {

    public static final String TODO_REMINDER_SERVICE = "todoReminderService";

    @Autowired
    private Map<String, MessageReminderService> serviceMap;
    public MessageReminderService getService(String service){
        return serviceMap.get(service);
    }

}

package com.example.service;

import com.bozhong.nursestaff.dto.basics.response.MessageReminderRespDTO;
import java.util.List;

/**
 * 消息提醒Service
 **/
public interface MessageReminderService {

    List<MessageReminderRespDTO> getReminderList();

}

package com.example.service.impl;

import com.bozhong.nursestaff.dto.basics.response.MessageReminderRespDTO;
import com.example.service.MessageReminderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.*;

/**
 * 待办提醒
 **/
@Service("todoReminderService")
public class TodoReminderServiceImpl implements MessageReminderService {

    @Override
    public List<MessageReminderRespDTO> getReminderList() {
        List<MessageReminderRespDTO> list = new ArrayList<>();
        // 业务逻辑略.....
        return list;
    }
}

@Autowired
private MessageReminderFactory messageReminderFactory;

MessageReminderService todoReminderService = messageReminderFactory.getService(MessageReminderFactory.TODO_REMINDER_SERVICE);
todoReminderService.getReminderList();

// 后续扩展其他消息提醒service

MessageReminderService otherReminderService = messageReminderFactory.getService(MessageReminderFactory.OTHER_REMINDER_SERVICE);
otherReminderService.getReminderList();