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参赛选手加入编号，增加导出功能

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This commit is contained in:
litianxiang
2026-02-04 13:41:09 +08:00
parent 1286e84488
commit 1decd8e258
5 changed files with 144 additions and 1 deletions
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11
src/main/java/com/ai/da/service/GlobalAwardService.java
View File

@@ -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;
}

123
src/main/java/com/ai/da/service/impl/GlobalAwardServiceImpl.java
View File

@@ -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) {