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RooobinYeRooobinYe
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feat: implement Excel import functionality for student account creation
- Add Apache POI dependencies for Excel file processing - Update /review/import endpoint to support multipart file uploads - Implement Excel parsing to read student code and name from uploaded files - Add User entity creation with password encryption and salt generation - Configure User entity with auto-increment ID annotation - Generate passwords as studentCode + 6 random lowercase letters - Return account information with original passwords and student codes
1 parent 8c1198f commit 2d4dfa0

6 files changed

Lines changed: 188 additions & 6 deletions

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‎approval-pojo/src/main/java/fun/sast/entity/User.java‎

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package fun.sast.entity;
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import com.baomidou.mybatisplus.annotation.IdType;
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import com.baomidou.mybatisplus.annotation.TableId;
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import java.io.Serializable;
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import java.time.LocalDateTime;
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import lombok.AllArgsConstructor;
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private Integer depId;
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/** 用户id编号 */
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@TableId(type = IdType.AUTO)
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private Integer id;
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/** 用户姓名 */

‎approval-server/pom.xml‎

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<artifactId>spring-boot-starter-aop</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi-ooxml</artifactId>
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</dependency>
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</dependencies>
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<build>

‎approval-server/src/main/java/fun/sast/controller/reviewController/ReviewController.java‎

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import java.util.Map;
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import lombok.RequiredArgsConstructor;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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@RestController
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@RequiredArgsConstructor
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/**
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* 导入学生账号并导出账号 excel
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*
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* @param depId 学院 ID
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* @param depId 学院 ID (可选)
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* @param file Excel 文件 (可选)
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* @return List<Account> 账号列表
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*/
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@ResponseResult
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@PostMapping("/import")
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public List<AccountImportVO> importAccount(@RequestParam String depId) {
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return reviewService.importAccount(depId);
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public List<AccountImportVO> importAccount(
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@RequestParam(required = false) String depId,
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@RequestParam(value = "file", required = false) MultipartFile file) {
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return reviewService.importAccount(depId, file);
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}
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/**

‎approval-server/src/main/java/fun/sast/service/ReviewService.java‎

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import fun.sast.vo.CompetitionListVO;
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import fun.sast.vo.WorkReviewListVO;
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import java.util.List;
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import org.springframework.web.multipart.MultipartFile;
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public interface ReviewService {
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List<AccountImportVO> importAccount(String comId);
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List<AccountImportVO> importAccount(String depId, MultipartFile file);
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void uploadReview(String id, boolean accept, String opinion);
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‎approval-server/src/main/java/fun/sast/service/impl/ReviewServiceImpl.java‎

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import fun.sast.vo.CompetitionListVO;
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import fun.sast.vo.WorkReviewListVO;
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import fun.sast.vo.WorkReviewVO;
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import java.io.IOException;
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import java.security.SecureRandom;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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import lombok.RequiredArgsConstructor;
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import org.apache.poi.ss.usermodel.*;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import org.springframework.util.DigestUtils;
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@Service
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@RequiredArgsConstructor
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private static final int PAGE_SIZE = 10;
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@Override
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public List<AccountImportVO> importAccount(String comId) {
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return null;
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public List<AccountImportVO> importAccount(String depId, MultipartFile file) {
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List<AccountImportVO> accounts = new ArrayList<>();
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if (file != null && !file.isEmpty()) {
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try {
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List<StudentInfo> students = parseExcelFile(file);
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accounts = createUsersAndGenerateAccounts(students, depId);
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} catch (IOException e) {
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throw new BaseException(ErrorEnum.IMPORT_ERROR);
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}
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}
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return accounts;
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}
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private static class StudentInfo {
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String code;
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String name;
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StudentInfo(String code, String name) {
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this.code = code;
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this.name = name;
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}
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}
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private List<StudentInfo> parseExcelFile(MultipartFile file) throws IOException {
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List<StudentInfo> students = new ArrayList<>();
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Workbook workbook = null;
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try {
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String fileName = file.getOriginalFilename();
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if (fileName != null && fileName.endsWith(".xlsx")) {
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workbook = new XSSFWorkbook(file.getInputStream());
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} else if (fileName != null && fileName.endsWith(".xls")) {
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workbook = new HSSFWorkbook(file.getInputStream());
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} else {
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throw new BaseException(ErrorEnum.INVALID_FILE_TYPE_ERROR);
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}
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Sheet sheet = workbook.getSheetAt(0);
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for (int i = 1; i <= sheet.getLastRowNum(); i++) {
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Row row = sheet.getRow(i);
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if (row != null) {
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Cell codeCell = row.getCell(0);
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Cell nameCell = row.getCell(1);
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if (codeCell != null && nameCell != null) {
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String studentCode = getCellValueAsString(codeCell);
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String studentName = getCellValueAsString(nameCell);
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if (studentCode != null && !studentCode.trim().isEmpty() &&
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studentName != null && !studentName.trim().isEmpty()) {
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students.add(new StudentInfo(studentCode.trim(), studentName.trim()));
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}
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}
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}
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}
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} finally {
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if (workbook != null) {
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workbook.close();
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}
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}
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return students;
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}
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private String getCellValueAsString(Cell cell) {
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if (cell == null) {
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return null;
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}
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switch (cell.getCellType()) {
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case STRING:
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return cell.getStringCellValue();
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case NUMERIC:
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if (DateUtil.isCellDateFormatted(cell)) {
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return cell.getDateCellValue().toString();
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} else {
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return String.valueOf((long) cell.getNumericCellValue());
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}
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case BOOLEAN:
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return String.valueOf(cell.getBooleanCellValue());
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case FORMULA:
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return cell.getCellFormula();
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default:
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return null;
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}
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}
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private List<AccountImportVO> createUsersAndGenerateAccounts(List<StudentInfo> students, String depId) {
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List<AccountImportVO> accounts = new ArrayList<>();
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User currentUser = UserInterceptor.userHolder.get();
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Long operatorId = currentUser != null ? currentUser.getId().longValue() : 0L;
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Integer departmentId = depId != null ? Integer.parseInt(depId) : null;
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for (StudentInfo student : students) {
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String randomSuffix = generateRandomPassword();
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String password = student.code + randomSuffix;
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String salt = generateSalt();
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String encryptedPassword = encryptPassword(password, salt);
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User user = new User();
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user.setDepId(departmentId);
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user.setName(student.name);
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user.setCode(student.code);
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user.setPassword(encryptedPassword);
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user.setSalt(salt);
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user.setRole(UserRoleEnum.STUDENT.getRole());
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user.setMajor("");
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user.setContact("");
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user.setCreateTime(LocalDateTime.now());
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user.setUpdateTime(LocalDateTime.now());
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user.setCreateUser(operatorId);
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user.setUpdateUser(operatorId);
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userMapper.insert(user);
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accounts.add(new AccountImportVO(password, student.code));
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}
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return accounts;
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}
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private String generateSalt() {
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return generateRandomString(16);
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}
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private String encryptPassword(String password, String salt) {
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return DigestUtils.md5DigestAsHex((password + salt).getBytes());
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}
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private String generateRandomPassword() {
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return generateRandomString(6);
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}
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private String generateRandomString(int length) {
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String chars = "abcdefghijklmnopqrstuvwxyz";
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SecureRandom random = new SecureRandom();
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StringBuilder result = new StringBuilder();
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for (int i = 0; i < length; i++) {
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result.append(chars.charAt(random.nextInt(chars.length())));
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}
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return result.toString();
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}
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@Override

‎pom.xml‎

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<bucket4j.version>8.10.1</bucket4j.version>
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<aspectj.version>1.9.24</aspectj.version>
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<qcloud.version>5.6.227</qcloud.version>
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<poi.version>5.2.5</poi.version>
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</properties>
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<version>${qcloud.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi</artifactId>
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<version>${poi.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.poi</groupId>
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<artifactId>poi-ooxml</artifactId>
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<version>${poi.version}</version>
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</dependency>
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</dependencies>
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</dependencyManagement>
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