远程文件服务器多资源压缩下载多url资源压缩下载

@ApiOperation("导出资料多个zip下载")
    @RequestMapping(value = "/infoexportfiles", method = {RequestMethod.GET, RequestMethod.POST})
    public void infoexportfiles(HttpServletResponse res,@ApiParam(value = "任务id")@RequestParam(value = "ids") String ids) {
        log.info(" export url fiels and ids:" + ids);
        try {
            List infoList = getInfoList(ids);
            if (infoList.size() > 0) {
                String fileName = URLEncoder.encode("resource.zip","UTF-8");
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                ZipOutputStream zos = new ZipOutputStream(bos);
                UrlFilesToZip s = new UrlFilesToZip();
                for (JSONObject info : infoList) {
                    String path = info.getString("path");
                    if(StringUtils.isNotEmpty(path)){
                        String filename = info.getString("filename");
                        //请求地址
                        String oneFile = gateway+"/api/download?path="+path+"&fileName="+filename;
                        //下载文件名称
                        filename = filename.substring(0,filename.indexOf(".")) +"_"+System.currentTimeMillis()+ filename.substring(filename.indexOf("."));
                        zos.putNextEntry(new ZipEntry(filename));
                        byte[] bytes = s.getImageFromURL(oneFile);
                        zos.write(bytes, 0, bytes.length);
                        zos.closeEntry();
                    }
                }
                zos.close();
                res.setContentType("application/force-download");// 设置强制下载不打开
                res.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 设置文件名
                OutputStream os = res.getOutputStream();
                os.write(bos.toByteArray());
                os.close();
            }
        }catch(Exception e) {
            e.printStackTrace();
        }
    }

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * Created by 2019/11/28.
 * 打包下载远程url文件
 */
public class UrlFilesToZip {
    private static final Logger logger = LoggerFactory.getLogger(UrlFilesToZip.class);

    //根据文件链接把文件下载下来并且转成字节码
    public byte[] getImageFromURL(String urlPath) {
        byte[] data = null;
        InputStream is = null;
        HttpURLConnection conn = null;
        try {
            URL url = new URL(urlPath);
            conn = (HttpURLConnection) url.openConnection();
            conn.setDoInput(true);
            // conn.setDoOutput(true);
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(6000);
            is = conn.getInputStream();
            if (conn.getResponseCode() == 200) {
                data = readInputStream(is);
            } else {
                data = null;
            }
        } catch (MalformedURLException e) {
            logger.error("MalformedURLException", e);
        } catch (IOException e) {
            logger.error("IOException", e);
        } finally {
            try {
                if (is != null) {
                    is.close();
                }
            } catch (IOException e) {
                logger.error("IOException", e);
            }
            conn.disconnect();
        }
        return data;
    }


    public byte[] readInputStream(InputStream is) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int length = -1;
        try {
            while ((length = is.read(buffer)) != -1) {
                baos.write(buffer, 0, length);
            }
            baos.flush();
        } catch (IOException e) {
            logger.error("IOException", e);
        }
        byte[] data = baos.toByteArray();
        try {
            is.close();
            baos.close();
        } catch (IOException e) {
            logger.error("IOException", e);
        }
        return data;
    }
}