2019-10-22 spring boot文件批量下载

@Controller
@RequestMapping(value = "/download")
public class FileAction {

    /**
     * 下载
     *
     * @param response
     */

    @RequestMapping(value = "/imgdownload", method = RequestMethod.GET)
    public void imgDownload(HttpServletResponse response) {
        List<String> paths = new ArrayList<>();
        String file1 = "C:\\Users\\84695\\Desktop\\GDS\\ECMWF_HR\\RAIN24\\19061408.036";
        String file2 = "C:\\Users\\84695\\Desktop\\GDS\\ECMWF_HR\\RAIN24\\19061408.024";
        paths.add(file1);
        paths.add(file2);
        List<String> names = new ArrayList<>();
        String filess = "19061408.036";
        String files = "19061408.024";
        names.add(filess);
        names.add(files);
        //存放--服务器上zip文件的目录
        String directory = "D:\\repository\\test";
        File directoryFile = new File(directory);
        if (!directoryFile.isDirectory() && !directoryFile.exists()) {
            directoryFile.mkdirs();
        }

        //设置最终输出zip文件的目录+文件名
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy年MM月dd日HH时mm分ss秒");
        String zipFileName = formatter.format(new Date()) + ".zip";
        String strZipPath = directory + "\\" + zipFileName;
        ZipOutputStream zipStream = null;
        FileInputStream zipSource = null;
        BufferedInputStream bufferStream = null;
        File zipFile = new File(strZipPath);
        try {
            //构造最终压缩包的输出流
            zipStream = new ZipOutputStream(new FileOutputStream(zipFile));
            for (int i = 0; i < paths.size(); i++) {
                //解码获取真实路径与文件名
                String realFileName = java.net.URLDecoder.decode(names.get(i), "UTF-8");
                String realFilePath = java.net.URLDecoder.decode(paths.get(i), "UTF-8");
                File file = new File(realFilePath);
                //TODO:未对文件不存在时进行操作，后期优化。
                if (file.exists()) {
                    zipSource = new FileInputStream(file);//将需要压缩的文件格式化为输入流
/**
 * 压缩条目不是具体独立的文件，而是压缩包文件列表中的列表项，称为条目，就像索引一样这里的name就是文件名,
 * 文件名和之前的重复就会导致文件被覆盖

 */
                    ZipEntry zipEntry = new ZipEntry(realFileName);//在压缩目录中文件的名字
                    zipStream.putNextEntry(zipEntry);//定位该压缩条目位置，开始写入文件到压缩包中
                    bufferStream = new BufferedInputStream(zipSource, 1024 * 10);
                    int read = 0;
                    byte[] buf = new byte[1024 * 10];
                    while ((read = bufferStream.read(buf, 0, 1024 * 10)) != -1) {
                        zipStream.write(buf, 0, read);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
//关闭流
            try {
                if (null != bufferStream) {
                    bufferStream.close();
                }
                if (null != zipStream) {

                    zipStream.close();
                }
                if (null != zipSource) {
                    zipSource.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        //判断系统压缩文件是否存在：true-把该压缩文件通过流输出给客户端后删除该压缩文件 false-未处理
        if (zipFile.exists()) {
            downImg(response, zipFileName, strZipPath);
            zipFile.delete();
        }
    }

    public void downImg(HttpServletResponse response, String filename, String path) {

        if (filename != null) {
            FileInputStream is = null;
            BufferedInputStream bs = null;
            OutputStream os = null;
            try {
                File file = new File(path);
                if (file.exists()) {
                    //设置Headers
                    response.setHeader("Content-Type", "application/octet-stream");
                    //设置下载的文件的名称-该方式已解决中文乱码问题
                    response.setHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes("gb2312"), "ISO8859-1"));
                    is = new FileInputStream(file);
                    bs = new BufferedInputStream(is);
                    os = response.getOutputStream();
                    byte[] buffer = new byte[1024];
                    int len = 0;
                    while ((len = bs.read(buffer)) != -1) {
                        os.write(buffer, 0, len);
                    }
                } else {
                    response.sendRedirect("/imgUpload/imgList?error=" + "下载的文件资源不存在");
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            } finally {
                try {
                    if (is != null) {
                        is.close();
                    }
                    if (bs != null) {
                        bs.close();
                    }
                    if (os != null) {
                        os.flush();
                        os.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

原博客地址（很强！！！）