springboot+hutool批量生成二維碼壓縮導出功能

<!--        生成二維碼依賴-->
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.4.1</version>
        </dependency>

<!--        工具包-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.7.14</version>
        </dependency>

      QrConfig config = new QrConfig(300, 300);
// 設置邊距，既二維碼和背景之間的邊距
        config.setMargin(3);
// 設置前景色，既二維碼顏色（青色）
        config.setForeColor(Color.CYAN);
// 設置背景色（灰色）
        config.setBackColor(Color.GRAY);
// 生成二維碼到文件，也可以到流
        QrCodeUtil.generate("12345678", config, FileUtil.file("E:/image/12345678.jpg"));

<!--        office文件處理依賴-->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>5.0.0</version>
        </dependency>

 /**
     * 將文件打包成zip並下載
     */
    @PostMapping(value = "xiazai",consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    @ApiOperation("導出壓縮包")
    public void download(HttpServletResponse response) throws IOException {
        response.setHeader("content-type", "application/octet-stream");
        response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
        response.setContentType("application/octet-stream");
        response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=download.zip");
        CompressUtil.createArchiver(CharsetUtil.CHARSET_UTF_8, ArchiveStreamFactory.ZIP,response.getOutputStream())
                .add(FileUtil.file("E:/image"));
//        ZipUtils.pngZip(response.getOutputStream(), qrImages);

    }

/**
 * 圖片內容與名字
 */
@Data
public class QrImage {
    private byte[] bytes;

    private String name;
}

 /**
     * 將生成的二維碼字節流壓縮導出
     * @param outputStream
     * @param qrImages
     */
    public static void pngZip(OutputStream outputStream,List<QrImage> qrImages) {
        //Zip輸出流
        ZipOutputStream zipOutputStream = null;
        try {
            zipOutputStream = new ZipOutputStream(outputStream);
            for (QrImage file : qrImages) {
                ZipEntry zipEntry = new ZipEntry(file.getName()+".png");
                zipOutputStream.putNextEntry(zipEntry);
                //寫數據
                zipOutputStream.write(file.getBytes(), 0, file.getBytes().length);
                zipOutputStream.flush();
            }
            zipOutputStream.flush();
            zipOutputStream.close();

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 關閉流
            try {
                if (zipOutputStream != null) {
                    zipOutputStream.close();
                }
                if (outputStream != null) {
                    outputStream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

  /**
     * 將文件打包成zip並下載
     */
    @PostMapping(value = "xiazai",consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    @ApiImplicitParam(name = "excelFile",value = "excel導入",required = true,dataType="MultipartFile",allowMultiple = true,paramType = "query")
    @ApiOperation("導出壓縮包")
    public void download(@RequestParam("excelFile") MultipartFile file, HttpServletResponse response) throws IOException {
        //讀取excel
        ExcelReader reader = ExcelUtil.getReader(file.getInputStream());
        List<List<Object>> lists = reader.read();
        //刪除標題
        lists.remove(0);
        //批量生成二維碼
        List<QrImage> qrImages = create(lists);
        response.setHeader("content-type", "application/octet-stream");
        response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
        response.setContentType("application/octet-stream");
        response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=download.zip");
//        CompressUtil.createArchiver(CharsetUtil.CHARSET_UTF_8, ArchiveStreamFactory.ZIP,response.getOutputStream())
//                .add(FileUtil.file("E:/image"));
        ZipUtils.pngZip(response.getOutputStream(), qrImages);

    }

    public List<QrImage> create(List<List<Object>> list) throws FileNotFoundException {
        QrConfig config = new QrConfig(300, 300);
// 設置邊距，既二維碼和背景之間的邊距
        config.setMargin(3);
// 設置前景色，既二維碼顏色（青色）
        config.setForeColor(Color.CYAN);
// 設置背景色（灰色）
        config.setBackColor(Color.GRAY);
        byte[] bytes=null;
        List<QrImage> qrImages = new ArrayList<>();
        QrImage qrImage;
// 生成二維碼到文件，也可以到流
        for (List<Object> objects : list) {
            //將首列作為二維碼內容
            qrImage = new QrImage();
            //將首列作為二維碼內容
            bytes = QrCodeUtil.generatePng(objects.get(0).toString(),
                    config.setImg("E:/image/logo.png"));
            qrImage.setBytes(bytes);
            qrImage.setName(objects.get(0).toString());
            qrImages.add(qrImage);
        }

        return qrImages;
    }