src/main/java/com/pt/service/DownloadService.java

package com.pt.service;

import com.pt.repository.DownloadRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class DownloadService {

    @Autowired
    private DownloadRepository downloadRepository;

    public DownloadService(DownloadRepository downloadRepository) {
        this.downloadRepository = downloadRepository;
    }

    /*
        TODO: 添加下载需要的服务;
     */
}