参赛选手加入编号，增加导出功能

src/main/java/com/ai/da/common/security/filter/AuthenticationFilter.java

@@ -63,7 +63,7 @@ public class AuthenticationFilter extends OncePerRequestFilter {
                     //GlobalAwardController
                     "/api/global-award/uploads/pdf/init", "/api/global-award/uploads/pdf/chunk", "/api/global-award/uploads/pdf/complete", "/api/global-award/uploads/pdf/status",
                     "/api/global-award/uploads/video/init", "/api/global-award/uploads/video/chunk", "/api/global-award/uploads/video/complete", "/api/global-award/uploads/video/status",
-                    "/api/global-award/contestants/save", "/api/global-award/contestants/by-email", "/api/global-award/checkEmail", "/api/global-award/checkCode"
+                    "/api/global-award/contestants/save", "/api/global-award/contestants/by-email", "/api/global-award/checkEmail", "/api/global-award/checkCode","/api/global-award/contestants/export"
             );
 
     @Override

src/main/java/com/ai/da/controller/GlobalAwardController.java

@@ -163,6 +163,14 @@ public class GlobalAwardController {
         return Response.success(globalAwardService.checkCode(email, code));
     }
 
+    @GetMapping("/contestants/export")
+    @ApiOperation(value = "导出参赛者列表为Excel", notes = "导出所有参赛者信息为xlsx并触发下载")
+    public Response<Void> exportContestants() throws Exception {
+        // 将文件保存到服务端本地目录（uploadDir/exports），不返回文件内容给客户端
+        globalAwardService.saveContestantsToLocal();
+        return Response.success();
+    }
+
 }
 
 

src/main/java/com/ai/da/service/GlobalAwardService.java

@@ -20,6 +20,17 @@ public interface GlobalAwardService {
     CheckOTPVO checkCode(String email, String otp);
 
     void checkSecurityToken(String email, String securityToken);
+
+    /**
+     * 导出参赛者列表为 Excel（二进制）
+     * @return Excel 文件的字节数组
+     */
+    byte[] exportContestants() throws Exception;
+
+    /**
+     * 将参赛者列表导出并保存到服务端本地目录（使用服务配置的 uploadDir/exports）
+     */
+    void saveContestantsToLocal() throws Exception;
 }
 
 

src/main/java/com/ai/da/service/impl/GlobalAwardServiceImpl.java

@@ -22,6 +22,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.transaction.annotation.Transactional;
 
 import jakarta.annotation.Resource;
 
@@ -29,6 +30,20 @@ import java.io.IOException;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.*;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import jakarta.servlet.http.HttpServletResponse;
+
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.io.FileOutputStream;
+import java.time.format.DateTimeFormatter;
 
 @Service
 @Slf4j
@@ -128,6 +143,7 @@ public class GlobalAwardServiceImpl implements GlobalAwardService {
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public Map<String, Object> saveContestant(ContestantDTO request) {
         Map<String,Object> resp = new HashMap<>();
         if (request.getEmail() == null) {
@@ -142,7 +158,14 @@ public class GlobalAwardServiceImpl implements GlobalAwardService {
 
         LocalDateTime now = LocalDateTime.now();
         if (existing == null) {
+            // 生成唯一的参赛选手编号（从10000开始），使用数据库行锁保证并发安全与原子性
+            QueryWrapper<Contestant> numQw = new QueryWrapper<>();
+            numQw.isNotNull("contestant_number").orderByDesc("contestant_number").last("FOR UPDATE");
+            Contestant maxRow = contestantMapper.selectOne(numQw);
+            Integer nextContestantNumber = (maxRow == null || maxRow.getContestantNumber() == null) ? 10000 : maxRow.getContestantNumber() + 1;
+
             Contestant toInsert = Contestant.builder()
+                    .contestantNumber(nextContestantNumber)
                     .email(request.getEmail())
                     .firstName(request.getFirstName())
                     .lastName(request.getLastName())
@@ -160,6 +183,7 @@ public class GlobalAwardServiceImpl implements GlobalAwardService {
                     .build();
             contestantMapper.insert(toInsert);
             resp.put("success", true);
+            resp.put("contestant_number", nextContestantNumber);
             sendSiteMsg(toInsert.getId(), toInsert.getEmail());
             return resp;
         } else {
@@ -178,10 +202,109 @@ public class GlobalAwardServiceImpl implements GlobalAwardService {
             existing.setUpdatedAt(now);
             contestantMapper.updateById(existing);
             resp.put("success", true);
+            resp.put("contestant_number", existing.getContestantNumber());
             return resp;
         }
     }
 
+    @Override
+    public byte[] exportContestants() throws Exception {
+        List<Contestant> list = contestantMapper.selectList(new QueryWrapper<>());
+        try (XSSFWorkbook workbook = new XSSFWorkbook(); ByteArrayOutputStream out = new ByteArrayOutputStream()) {
+            Sheet sheet = workbook.createSheet("contestants");
+            int rowIdx = 0;
+            Row header = sheet.createRow(rowIdx++);
+            String[] headers = new String[] {
+                    "contestantNumber", "email", "firstName", "lastName", "gender", "occupation",
+                    "age", "countryRegionCity", "phoneNumber", "designTitle", "designDescription",
+                    "pdfPath", "videoPath", "createdAt", "updatedAt"
+            };
+            for (int i = 0; i < headers.length; i++) {
+                Cell c = header.createCell(i);
+                c.setCellValue(headers[i]);
+            }
+
+            for (Contestant cst : list) {
+                Row r = sheet.createRow(rowIdx++);
+                int ci = 0;
+                r.createCell(ci++).setCellValue(cst.getContestantNumber() == null ? "" : cst.getContestantNumber().toString());
+                r.createCell(ci++).setCellValue(cst.getEmail() == null ? "" : cst.getEmail());
+                r.createCell(ci++).setCellValue(cst.getFirstName() == null ? "" : cst.getFirstName());
+                r.createCell(ci++).setCellValue(cst.getLastName() == null ? "" : cst.getLastName());
+                r.createCell(ci++).setCellValue(cst.getGender() == null ? "" : cst.getGender());
+                r.createCell(ci++).setCellValue(cst.getOccupation() == null ? "" : cst.getOccupation());
+                r.createCell(ci++).setCellValue(cst.getAge() == null ? "" : cst.getAge().toString());
+                r.createCell(ci++).setCellValue(cst.getCountryRegionCity() == null ? "" : cst.getCountryRegionCity());
+                r.createCell(ci++).setCellValue(cst.getPhoneNumber() == null ? "" : cst.getPhoneNumber());
+                r.createCell(ci++).setCellValue(cst.getDesignTitle() == null ? "" : cst.getDesignTitle());
+                r.createCell(ci++).setCellValue(cst.getDesignDescription() == null ? "" : cst.getDesignDescription());
+                r.createCell(ci++).setCellValue(cst.getPdfPath() == null ? "" : cst.getPdfPath());
+                r.createCell(ci++).setCellValue(cst.getVideoPath() == null ? "" : cst.getVideoPath());
+                r.createCell(ci++).setCellValue(cst.getCreatedAt() == null ? "" : cst.getCreatedAt().toString());
+                r.createCell(ci++).setCellValue(cst.getUpdatedAt() == null ? "" : cst.getUpdatedAt().toString());
+            }
+
+            workbook.write(out);
+            out.flush();
+            return out.toByteArray();
+        } catch (IOException e) {
+            log.error("export contestants failed", e);
+            throw e;
+        }
+    }
+
+    @Override
+    public void saveContestantsToLocal() throws Exception {
+        List<Contestant> list = contestantMapper.selectList(new QueryWrapper<>());
+        DateTimeFormatter fmt = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
+        String ts = LocalDateTime.now().format(fmt);
+        Path exportDir = Paths.get(uploadDir == null ? "uploads" : uploadDir, "exports");
+        Files.createDirectories(exportDir);
+        Path outPath = exportDir.resolve("contestants_" + ts + ".xlsx");
+
+        try (XSSFWorkbook workbook = new XSSFWorkbook(); FileOutputStream fos = new FileOutputStream(outPath.toFile())) {
+            Sheet sheet = workbook.createSheet("contestants");
+            int rowIdx = 0;
+            Row header = sheet.createRow(rowIdx++);
+            String[] headers = new String[] {
+                    "contestantNumber", "email", "firstName", "lastName", "gender", "occupation",
+                    "age", "countryRegionCity", "phoneNumber", "designTitle", "designDescription",
+                    "pdfPath", "videoPath", "createdAt", "updatedAt"
+            };
+            for (int i = 0; i < headers.length; i++) {
+                Cell c = header.createCell(i);
+                c.setCellValue(headers[i]);
+            }
+
+            for (Contestant cst : list) {
+                Row r = sheet.createRow(rowIdx++);
+                int ci = 0;
+                r.createCell(ci++).setCellValue(cst.getContestantNumber() == null ? "" : cst.getContestantNumber().toString());
+                r.createCell(ci++).setCellValue(cst.getEmail() == null ? "" : cst.getEmail());
+                r.createCell(ci++).setCellValue(cst.getFirstName() == null ? "" : cst.getFirstName());
+                r.createCell(ci++).setCellValue(cst.getLastName() == null ? "" : cst.getLastName());
+                r.createCell(ci++).setCellValue(cst.getGender() == null ? "" : cst.getGender());
+                r.createCell(ci++).setCellValue(cst.getOccupation() == null ? "" : cst.getOccupation());
+                r.createCell(ci++).setCellValue(cst.getAge() == null ? "" : cst.getAge().toString());
+                r.createCell(ci++).setCellValue(cst.getCountryRegionCity() == null ? "" : cst.getCountryRegionCity());
+                r.createCell(ci++).setCellValue(cst.getPhoneNumber() == null ? "" : cst.getPhoneNumber());
+                r.createCell(ci++).setCellValue(cst.getDesignTitle() == null ? "" : cst.getDesignTitle());
+                r.createCell(ci++).setCellValue(cst.getDesignDescription() == null ? "" : cst.getDesignDescription());
+                r.createCell(ci++).setCellValue(cst.getPdfPath() == null ? "" : cst.getPdfPath());
+                r.createCell(ci++).setCellValue(cst.getVideoPath() == null ? "" : cst.getVideoPath());
+                r.createCell(ci++).setCellValue(cst.getCreatedAt() == null ? "" : cst.getCreatedAt().toString());
+                r.createCell(ci++).setCellValue(cst.getUpdatedAt() == null ? "" : cst.getUpdatedAt().toString());
+            }
+
+            workbook.write(fos);
+            fos.flush();
+            log.info("Exported contestants to local file: {}", outPath.toString());
+        } catch (IOException e) {
+            log.error("save contestants to local failed", e);
+            throw e;
+        }
+    }
+
     @Override
     public ContestantDTO getContestantByID(String id) {
         if (id == null) {

src/main/resources/mapper/primary/WorkspaceRelStyleMapper.xml

@@ -17,3 +17,4 @@
 
 </mapper>
 
+