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导出托盘标签图片ZIP

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10001392 2026-05-29 17:34:55 +08:00
parent 25a88cbeb7
commit ac8e64884d
1 changed files with 21 additions and 28 deletions
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49
nflg-wms-admin/src/main/java/com/nflg/wms/admin/controller/StructuralPackageOrderController.java
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@ -700,43 +700,36 @@ public class StructuralPackageOrderController extends BaseController {
} }
/** /**
* 导出托盘标签图片（多个托盘合并为一张长图） * 导出托盘标签图片ZIP（多个托盘分别生成图片并打包成ZIP）
* @param id 订单id * @param id 订单id
*/ */
@GetMapping(value = "exportTrayImage", produces = MediaType.IMAGE_PNG_VALUE) @PostMapping(value = "exportTrayImageZip", produces = "application/zip")
public ResponseEntity<byte[]> exportTrayImage(@Valid @RequestParam @NotNull Long id) throws Exception { public ResponseEntity<byte[]> exportTrayImageZip(@Valid @RequestParam @NotNull Long id) throws Exception {
// 根据订单ID获取所有托盘 // 根据订单ID获取所有托盘
List<WmsStructuralPackageOrderTray> trays = structuralPackageOrderTrayService.getList(id); List<WmsStructuralPackageOrderTray> trays = structuralPackageOrderTrayService.getList(id);
VUtil.trueThrowBusinessError(CollectionUtil.isEmpty(trays)).throwMessage("数据不存在"); VUtil.trueThrowBusinessError(CollectionUtil.isEmpty(trays)).throwMessage("数据不存在");
// 为每个托盘生成HTML内容，并拼接成一个完整的HTML ByteArrayOutputStream baos = new ByteArrayOutputStream();
StringBuilder mergedHtml = new StringBuilder(); try (ZipOutputStream zos = new ZipOutputStream(baos)) {
mergedHtml.append("<!DOCTYPE html><html><head><meta charset='UTF-8'/></head><body style='margin:0;padding:0;'>"); for (WmsStructuralPackageOrderTray tray : trays) {
DeliverStructuralPackageOrderExtendVO trayVO = structuralPackageOrderTrayService.getInfo(tray.getId());
for (WmsStructuralPackageOrderTray tray : trays) { VUtil.trueThrowBusinessError(Objects.isNull(trayVO)).throwMessage("数据不存在");
DeliverStructuralPackageOrderExtendVO trayVO = structuralPackageOrderTrayService.getInfo(tray.getId()); trayVO.setQrCode(QRCodeUtil.generateQRCodeBase64(trayVO.getTrayNo(), 200, 200));
VUtil.trueThrowBusinessError(Objects.isNull(trayVO)).throwMessage("数据不存在"); Map<String, Object> variables = new HashMap<>();
trayVO.setQrCode(QRCodeUtil.generateQRCodeBase64(trayVO.getTrayNo(), 200, 200)); variables.put("info", trayVO);
Map<String, Object> variables = new HashMap<>(); String html = ThymeleafUtil.generator("/template/qrcode/", "tray-label", ".html", variables);
variables.put("info", trayVO); ZipEntry entry = new ZipEntry(trayVO.getTrayNo() + ".png");
String html = ThymeleafUtil.generator("/template/qrcode/", "tray-label", ".html", variables); zos.putNextEntry(entry);
// 提取body内容并追加 byte[] imageBytes = HtmlToImageUtil.convertToPng(html, 600);
int bodyStart = html.indexOf("<body"); zos.write(imageBytes, 0, imageBytes.length);
int bodyEndStart = html.indexOf(">", bodyStart) + 1; zos.closeEntry();
int bodyEnd = html.lastIndexOf("</body>");
if (bodyStart != -1 && bodyEnd != -1) {
mergedHtml.append(html.substring(bodyEndStart, bodyEnd));
} }
} }
byte[] zipBytes = baos.toByteArray();
mergedHtml.append("</body></html>");
// 将合并后的HTML转换为图片
byte[] imageBytes = HtmlToImageUtil.convertToPng(mergedHtml.toString(), 600);
HttpHeaders headers = new HttpHeaders(); HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.IMAGE_PNG); headers.setContentType(MediaType.valueOf("application/zip"));
headers.setContentLength(imageBytes.length); headers.setContentLength(zipBytes.length);
return new ResponseEntity<>(imageBytes, headers, HttpStatus.OK); return new ResponseEntity<>(zipBytes, headers, HttpStatus.OK);
} }
/** /**