随机试卷

qirong

2023-06-20 983a2d36e9d3ca4ff2da89bbaca687fc55e92610

 src/main/java/com/mindskip/xzs/service/impl/ExamPaperServiceImpl.java

@@ -3,6 +3,7 @@
import com.mindskip.xzs.domain.*;
import com.mindskip.xzs.domain.TextContent;
import com.mindskip.xzs.domain.enums.ExamPaperTypeEnum;
import com.mindskip.xzs.domain.enums.QuestionTypeEnum;
import com.mindskip.xzs.domain.exam.ExamPaperQuestionItemObject;
import com.mindskip.xzs.domain.exam.ExamPaperTitleItemObject;
import com.mindskip.xzs.domain.other.KeyValue;
@@ -31,9 +32,7 @@
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;

@@ -48,9 +47,10 @@
    private final SubjectService subjectService;
    private final ExamPaperDepartmentService examPaperDepartmentService;
    private final ExamPaperSubjectService examPaperSubjectService;
    private final QuestionSubjectService questionSubjectService;

    @Autowired
    public ExamPaperServiceImpl(ExamPaperMapper examPaperMapper, QuestionMapper questionMapper, TextContentService textContentService, QuestionService questionService, SubjectService subjectService, ExamPaperDepartmentService examPaperDepartmentService, ExamPaperSubjectService examPaperSubjectService) {
    public ExamPaperServiceImpl(ExamPaperMapper examPaperMapper, QuestionMapper questionMapper, TextContentService textContentService, QuestionService questionService, SubjectService subjectService, ExamPaperDepartmentService examPaperDepartmentService, ExamPaperSubjectService examPaperSubjectService, QuestionSubjectService questionSubjectService) {
        super(examPaperMapper);
        this.examPaperMapper = examPaperMapper;
        this.questionMapper = questionMapper;
@@ -59,6 +59,7 @@
        this.subjectService = subjectService;
        this.examPaperDepartmentService = examPaperDepartmentService;
        this.examPaperSubjectService = examPaperSubjectService;
        this.questionSubjectService = questionSubjectService;
    }


@@ -86,6 +87,59 @@
    public ExamPaper savePaperFromVM(ExamPaperEditRequestVM examPaperEditRequestVM, User user) {
        ActionEnum actionEnum = (examPaperEditRequestVM.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
        Date now = new Date();
        if (examPaperEditRequestVM.getSubjectSource() != null) {
//            Map<Integer, Integer> questionList = questionService.getAll().stream().collect(Collectors.toMap(Question::getId, Question::getScore));
            Map<Integer, Integer> subjectSource = examPaperEditRequestVM.getSubjectSource();
            //总数量
            Integer sum = subjectSource.values().stream().mapToInt(Integer::intValue).sum();
            Map<Integer, Integer> map = new HashMap<>();
            Integer avg = 0;
            for (Integer key : subjectSource.keySet()) {    // key：数量
                //该标签对应的分数   多选：3 判断：3 单选：4
                Integer source = examPaperEditRequestVM.getAggregateSource() * subjectSource.get(key) / sum;
                // 多选和判断数量
                Integer multipleNumber = key * 3 / 10;
                //多选和判断分数
                Integer multipleSource = source * 3 / 10;
                List<Integer> questions = questionSubjectService.getQuestion(key)
                        .stream().map(QuestionSubject::getQuestionId).collect(Collectors.toList());
                List<Question> list = questionService.selectByIds(questions);

                Map<Integer, Integer> multiple = new HashMap<>();
                //多选
                Map<Integer, Integer> multipleMap = list.stream()
                        .filter(e -> e.getQuestionType().equals(QuestionTypeEnum.MultipleChoice.getCode()))
                        .collect(Collectors.toMap(Question::getId, Question::getScore));
                selectRandomScores(multiple, multipleMap, multipleNumber, multipleSource);

                //判断
                Map<Integer, Integer> judgmentMap = list.stream()
                        .filter(e -> e.getQuestionType().equals(QuestionTypeEnum.TrueFalse.getCode()))
                        .collect(Collectors.toMap(Question::getId, Question::getScore));
                selectRandomScores(multiple, judgmentMap, multipleNumber, multipleSource);

                //单选数量
                Integer radioNumber = key - (2 * multipleNumber);
                //单选分数
                Integer radioSource = source - (2 * multipleSource);
                //单选
                Map<Integer, Integer> radioMap = list.stream()
                        .filter(e -> e.getQuestionType().equals(QuestionTypeEnum.SingleChoice.getCode()))
                        .collect(Collectors.toMap(Question::getId, Question::getScore));
                selectRandomScores(multiple, radioMap, radioNumber, radioSource);
                ExamPaperTitleItemObject examPaperTitleItemObject = new ExamPaperTitleItemObject();
                examPaperTitleItemObject.setName("测试001");
                Integer order = 0;
                List<ExamPaperQuestionItemObject> examPaperQuestionItemObjectList = new ArrayList<>();
                for (Integer k : multiple.keySet()) {
                    ExamPaperQuestionItemObject examPaperQuestionItemObject = new ExamPaperQuestionItemObject();
                    examPaperQuestionItemObject.setId(k);
                    examPaperQuestionItemObject.setItemOrder(order++);
                    examPaperQuestionItemObjectList.add(examPaperQuestionItemObject);
                }
                examPaperTitleItemObject.setQuestionItems(examPaperQuestionItemObjectList);
            }
        }
        List<ExamPaperTitleItemVM> titleItemsVM = examPaperEditRequestVM.getTitleItems();
        List<ExamPaperTitleItemObject> frameTextContentList = frameTextContentFromVM(titleItemsVM);
        String frameTextContentStr = JsonUtil.toJsonStr(frameTextContentList);
@@ -114,8 +168,8 @@
            examPaperDepartmentService.removeByExamPaperId(examPaper.getId());
            examPaperSubjectService.removeByExamPaperId(examPaper.getId());
        }
        addExamPaperDepartment(examPaperEditRequestVM,examPaper);
        addExamPaperSubject(examPaperEditRequestVM,examPaper);
        addExamPaperDepartment(examPaperEditRequestVM, examPaper);
        addExamPaperSubject(examPaperEditRequestVM, examPaper);
        return examPaper;
    }

@@ -219,8 +273,8 @@
        }).collect(Collectors.toList());
    }

    private void addExamPaperDepartment(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper){
        List<ExamPaperDepartment> list = Arrays.asList(examPaperEditRequestVM.getDepartmentIds()).stream().map(e->{
    private void addExamPaperDepartment(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper) {
        List<ExamPaperDepartment> list = Arrays.asList(examPaperEditRequestVM.getDepartmentIds()).stream().map(e -> {
            ExamPaperDepartment examPaperDepartment = new ExamPaperDepartment();
            examPaperDepartment.setExamPaperId(examPaper.getId());
            examPaperDepartment.setDepartmentId(e);
@@ -230,8 +284,8 @@
        examPaperDepartmentService.saves(list);
    }

    private void addExamPaperSubject(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper){
        List<ExamPaperSubject> subjectList = Arrays.asList(examPaperEditRequestVM.getSubjectId()).stream().map(e->{
    private void addExamPaperSubject(ExamPaperEditRequestVM examPaperEditRequestVM, ExamPaper examPaper) {
        List<ExamPaperSubject> subjectList = Arrays.asList(examPaperEditRequestVM.getSubjectId()).stream().map(e -> {
            ExamPaperSubject examPaperSubject = new ExamPaperSubject();
            examPaperSubject.setSubjectId(e);
            examPaperSubject.setExamPaperId(examPaper.getId());
@@ -240,4 +294,40 @@
        }).collect(Collectors.toList());
        examPaperSubjectService.saves(subjectList);
    }

    public static void selectRandomScores(Map<Integer, Integer> result, Map<Integer, Integer> scoresMap, int quantity, int totalScore) {
//        Map<Integer, Integer> selectedScoresMap = new HashMap<>();

        if (quantity <= 0 || totalScore <= 0 || scoresMap.isEmpty()) {
            return; // 返回空Map
        }

        List<Integer> keys = new ArrayList<>(scoresMap.keySet());
        List<Integer> values = new ArrayList<>(scoresMap.values());

        Random random = new Random();
        int remainingQuantity = quantity;
        int remainingScore = totalScore;

        for (int i = 0; i < quantity - 1; i++) {
            int index = random.nextInt(values.size());
            int score = values.get(index);

            if (score <= remainingScore) {
                result.put(keys.get(index), score);
                remainingQuantity--;
                remainingScore -= score;
                values.remove(index);
                keys.remove(index);
            }
        }

        if (!values.isEmpty()) {
            int index = random.nextInt(values.size());
            int score = values.get(index);
            result.put(keys.get(index), remainingScore); // 最后一个分数为剩余的分数
        }

    }

}