feat(device): 添加设备二维码导出功能

- 新增设备二维码导出接口，支持单个或多个设备二维码的导出
-优化二维码生成逻辑，增加边框和文本的处理

nflg-mobilebroken-admin/src/main/java/com/nflg/mobilebroken/admin/controller/DeviceController.java

@@ -20,6 +20,7 @@ import com.nflg.mobilebroken.common.pojo.ApiResult;
 import com.nflg.mobilebroken.common.pojo.PageData;
 import com.nflg.mobilebroken.common.pojo.dto.DeviceAddImportDTO;
 import com.nflg.mobilebroken.common.pojo.dto.DeviceUpdateImportDTO;
+import com.nflg.mobilebroken.common.pojo.request.IdPostRequest;
 import com.nflg.mobilebroken.common.pojo.vo.DeviceQRCodeVO;
 import com.nflg.mobilebroken.common.util.*;
 import com.nflg.mobilebroken.repository.entity.*;
@@ -29,6 +30,7 @@ import com.nflg.mobilebroken.starter.service.FileUploadService;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -41,14 +43,19 @@ import javax.validation.Valid;
 import javax.validation.constraints.NotEmpty;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.net.URLEncoder;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 import java.util.*;
 import java.util.stream.Collectors;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
 
 /**
  * 设备管理
@@ -687,11 +694,11 @@ public class DeviceController extends ControllerBase {
 
     /**
      * 获取设备二维码
-     * @param ids 设备id列表
+     * @param request 请求参数
      */
     @PostMapping("getQRCode")
-    public ApiResult<List<DeviceQRCodeVO>> getQRCode(@Valid @RequestBody @NotEmpty List<Integer> ids){
+    public ApiResult<List<DeviceQRCodeVO>> getQRCode(@Valid @RequestBody IdPostRequest request){
-        List<Device> devices=deviceService.listByIds(ids);
+        List<Device> devices=deviceService.listByIds(request.getIds());
         List<DeviceQRCodeVO> vos=new ArrayList<>();
         devices.forEach(device -> {
             try {
@@ -706,4 +713,49 @@ public class DeviceController extends ControllerBase {
         });
         return ApiResult.success(vos);
     }
+
+    /**
+     * 导出设备二维码图片
+     * @param request 请求参数
+     */
+    @PostMapping("exportImages")
+    public ResponseEntity<byte[]> exportImages(@Valid @RequestBody IdPostRequest request){
+        List<Device> devices=deviceService.listByIds(request.getIds());
+        if (CollUtil.isNotEmpty(devices)){
+            try {
+                if (devices.size()==1){
+                    byte[] bytes=deviceQRCodeService.generate(devices.get(0).getDeviceNo());
+                    HttpHeaders headers = new HttpHeaders();
+                    headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename="+ devices.get(0).getDeviceNo()+".jpg");
+                    return ResponseEntity.ok()
+                            .headers(headers)
+                            .contentType(MediaType.IMAGE_JPEG)
+                            .body(bytes);
+                }else {
+                    Path tempZipFile = Files.createTempFile("files", ".zip");
+                    try (FileOutputStream fos = new FileOutputStream(tempZipFile.toFile());
+                         ZipOutputStream zos = new ZipOutputStream(fos)) {
+                        for (Device device : devices) {
+                            ZipEntry zipEntry = new ZipEntry(device.getDeviceNo()+".jpg");
+                            zos.putNextEntry(zipEntry);
+                            byte[] bytes=deviceQRCodeService.generate(device.getDeviceNo());
+                            zos.write(bytes, 0, bytes.length);
+                            zos.closeEntry();
+                        }
+                    }
+                    byte[] zipContent = Files.readAllBytes(tempZipFile);
+                    Files.deleteIfExists(tempZipFile);
+                    HttpHeaders headers = new HttpHeaders();
+                    headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename="+ DateTimeUtil.format(LocalDateTime.now(),"yyyyMMddHHmmss")+".zip");
+                    return ResponseEntity.ok()
+                            .headers(headers)
+                            .contentType(MediaType.APPLICATION_OCTET_STREAM)
+                            .body(zipContent);
+                }
+            }catch (Exception e) {
+                VUtils.trueThrowBusinessError(true).throwMessage("生成二维码出错");
+            }
+        }
+        return ResponseEntity.ok().build();
+    }
 }

nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/pojo/request/IdPostRequest.java

@@ -0,0 +1,16 @@
+package com.nflg.mobilebroken.common.pojo.request;
+
+import lombok.Data;
+
+import javax.validation.constraints.NotEmpty;
+import java.util.List;
+
+@Data
+public class IdPostRequest {
+
+    /**
+     * id集合
+     */
+    @NotEmpty
+    private List<Integer> ids;
+}

nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/util/QRCodeUtil.java

@@ -55,8 +55,9 @@ public class QRCodeUtil {
      */
     private static BufferedImage addBorderAndText(BufferedImage qrImage, String text) {
         int borderSize = 1;
-        int newWidth = qrImage.getWidth();
+        int extend=10;
-        int newHeight = qrImage.getHeight() + 10;
+        int newWidth = qrImage.getWidth() + extend;
+        int newHeight = qrImage.getHeight() + extend;
         // 创建新画布（扩大尺寸以容纳边框）
         BufferedImage newImage = new BufferedImage(
                 newWidth,
@@ -68,7 +69,7 @@ public class QRCodeUtil {
         g.setColor(Color.WHITE);
         g.fillRect(0, 0, newWidth, newHeight);
         // 绘制原始二维码（居中）
-        g.drawImage(qrImage, borderSize, borderSize, null);
+        g.drawImage(qrImage, borderSize + extend / 2, borderSize, null);
         // 绘制边框
         g.setColor(Color.BLACK);
         g.setStroke(new BasicStroke(borderSize));