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多執行緒插入資料庫

本素材只是為了方便學習,沒有任何盈利目的:素材來源https://mp.weixin.qq.com/s/P1dJWtcmGe_KYThDo_8Ltg,如有侵權請聯絡作者刪除

 

@Transactional(rollbackFor = Exception.class)
public int addFreshStudentsNew2(List<FreshStudentAndStudentModel> list, String schoolNo) {
    if (list == null || list.isEmpty()) {
        return 0;
    }
    List
<StudentEntity> studentEntityList = new LinkedList<>(); List<EnrollStudentEntity> enrollStudentEntityList = new LinkedList<>(); List<AllusersEntity> allusersEntityList = new LinkedList<>(); for (FreshStudentAndStudentModel freshStudentAndStudentModel : list) { EnrollStudentEntity enrollStudentEntity
= new EnrollStudentEntity(); StudentEntity studentEntity = new StudentEntity(); BeanUtils.copyProperties(freshStudentAndStudentModel, studentEntity); BeanUtils.copyProperties(freshStudentAndStudentModel, enrollStudentEntity); String operator = TenancyContext.UserID.get(); String studentId
= BaseUuidUtils.base58Uuid(); enrollStudentEntity.setId(BaseUuidUtils.base58Uuid()); enrollStudentEntity.setStudentId(studentId); enrollStudentEntity.setIdentityCardId(freshStudentAndStudentModel.getIdCard()); enrollStudentEntity.setOperator(operator); studentEntity.setId(studentId); studentEntity.setIdentityCardId(freshStudentAndStudentModel.getIdCard()); studentEntity.setOperator(operator); studentEntityList.add(studentEntity); enrollStudentEntityList.add(enrollStudentEntity); AllusersEntity allusersEntity = new AllusersEntity(); allusersEntity.setId(enrollStudentEntity.getId()); allusersEntity.setUserCode(enrollStudentEntity.getNemtCode()); allusersEntity.setUserName(enrollStudentEntity.getName()); allusersEntity.setSchoolNo(schoolNo); allusersEntity.setTelNum(enrollStudentEntity.getTelNum()); allusersEntity.setPassword(enrollStudentEntity.getNemtCode()); //密碼設定為考生號 allusersEntityList.add(allusersEntity); } int c = 100; int b = enrollStudentEntityList.size() / c; int d = enrollStudentEntityList.size() % c; int enResult = 0; int stuResult = 0; boolean allResult = false; for (int e = c; e <= c * b; e = e + c) { enResult = enrollStudentDao.insertAll(enrollStudentEntityList.subList(e - c, e)); stuResult = studentDao.insertAll(studentEntityList.subList(e - c, e)); allResult = allusersFacade.insertUserList(allusersEntityList.subList(e - c, e)); } if (d != 0) { enResult = enrollStudentDao.insertAll(enrollStudentEntityList.subList(c * b, enrollStudentEntityList.size())); stuResult = studentDao.insertAll(studentEntityList.subList(c * b, studentEntityList.size())); allResult = allusersFacade.insertUserList(allusersEntityList.subList(c * b, allusersEntityList.size())); } if (enResult > 0 && stuResult > 0 && allResult) { return 10; } return -10; }
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