<script type="text/javascript">
 //批量上傳題庫
 function fileSubmit() {
 var questionFile = new FormData();
 var fileObj = document.getElementById("questionFile").files[0];
        // js 獲取文件對象，questionFile為文件選擇框的Id
 questionFile.append("file", fileObj);
 var teacherId=localStorage.getItem("teacherId");
 questionFile.append("teacherId",teacherId);
 var courseId=localStorage.getItem("courseId");
 questionFile.append("courseId",courseId);
 $.ajax({
  async: false,
  type:"post",
  url:"/questions/batchUpload",
  data:questionFile,
  processData : false, //必須false才會避開jQuery對 formdata 的默認處理
  contentType : false, //必須false才會自動加上正確的Content-Type
  success:function (data) {
  layer.msg("上傳成功");
  example.ajax.reload();
  }
 });
 }
 
</script>

@ApiOperation(value = "批量上傳題庫")
 @RequestMapping(value = "/batchUpload",method = RequestMethod.POST)
 public void batchUploadQuestions(HttpServletRequest request) throws Exception{
 Collection<Part> files = request.getParts();
 questionsService.batchUploadQuestions(files);
 }

//題庫的批量上傳
 @Override
 public void batchUploadQuestions(Collection<Part> files) throws Exception {
 Iterator<Part> it = files.iterator();
 Part file = it.next();
 Workbook workbook = null;
 if (file.getSubmittedFileName().endsWith("xlsx")) {
  workbook = new XSSFWorkbook(file.getInputStream());
 } else if (file.getSubmittedFileName().endsWith("xls")) {
  workbook = new HSSFWorkbook(file.getInputStream());
 }
 Cell cell = null;
 List<Questions> questionsList = new ArrayList<>();
 //判斷Excel中有幾張表，目前設定為一張表
 Sheet sheet = workbook.getSheetAt(0);//獲取sheet表
 for (int rowIndex = 2; rowIndex <= sheet.getLastRowNum(); rowIndex++) { //獲取到一行
  Row row = sheet.getRow(rowIndex);
  if (row == null) {
  continue;
  }
  Questions questions = new Questions();
  List<String> strList = new ArrayList<>();
  for (int i = 1; i < row.getLastCellNum(); i++) {
        //獲取到一列，第一列為序號不需要存入數(shù)據(jù)庫，所以從1開始讀
  cell = row.getCell(i);
  String value = "";
  switch (cell.getCellTypeEnum()) {
   case _NONE:
   break;
   case STRING:
   value = cell.getStringCellValue();
   break;
   case NUMERIC:
   Pattern points_ptrn = Pattern.compile("0.0+_*[^/s]+");
   if (DateUtil.isCellDateFormatted(cell)) {//日期
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    value = sdf.format(DateUtil.getJavaDate(cell.getNumericCellValue()));
   } else if ("@".equals(cell.getCellStyle().getDataFormatString())
    || "General".equals(cell.getCellStyle().getDataFormatString())
    || "0_".equals(cell.getCellStyle().getDataFormatString())) {
    //文本 or 常規(guī) or 整型數(shù)值
    DecimalFormat df = new DecimalFormat("0");
    value = df.format(cell.getNumericCellValue());
   } else if (points_ptrn.matcher(cell.getCellStyle().getDataFormatString()).matches()) {//正則匹配小數(shù)類型
    value = String.valueOf(cell.getNumericCellValue());//直接顯示
   }
   break;
   default:
   value = cell.toString();
  }
  if ((i == 2 || i == 3) && value.equals("")) {//此處設計不需要讀入的單元格
   strList.clear();
   break;
  }
  strList.add(value);
  }
  if (strList.size() == 9) {
         //對應數(shù)據(jù)庫屬性進行存儲
  questions.setChapter(strList.get(0));
  questions.setSection(strList.get(1));
  questions.setType(strList.get(2));
  questions.setQuestion(strList.get(3));
  questions.setAnswerA(strList.get(4));
  questions.setAnswerB(strList.get(5));
  questions.setAnswerC(strList.get(6));
  questions.setAnswerD(strList.get(7));
  questions.setAnswerTrue(strList.get(8));
  questionsList.add(questions);
  }
 }
 
    //將前臺存進的teacherId也當做文件進行讀取
 Part file1 = it.next();
 InputStream inputStream = file1.getInputStream();
 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
 String line = null;
 String teacherId = "";
 while ((line = bufferedReader.readLine()) != null) {
  teacherId = line;
 }
    
     //將前臺傳入的courseId當做文件讀取
 Part file2 = it.next();
 InputStream inputStream1 = file2.getInputStream();
 BufferedReader bufferedReader1 = new BufferedReader(new InputStreamReader(inputStream1));
 String line1 = null;
 String courseId = "";
 while ((line1 = bufferedReader1.readLine()) != null) {
  courseId = line1;
 }
 batchSaveQuestionList(teacherId, courseId, questionsList);
 }
 
 
   //SQL 語句拼接后傳入DAO層進行數(shù)據(jù)插入
 public void batchSaveQuestionList(String teacherId,String courseId,List<Questions> questionsList){
 String sql = "replace into questions(questionId,courseId,teacherId,chapter,section,type,question,answerA,answerB,answerC,answerD,answerTrue) values";
 for(int i = 0;i<questionsList.size();i++){
  String questionId = String.valueOf(System.currentTimeMillis())+i;
  if(i==0){
  sql+="('"+questionId+"','"+courseId+"','"+teacherId+"','"+questionsList.get(i).getChapter()+"','"+questionsList.get(i).getSection()
   + "','"+questionsList.get(i).getType()+"','"+questionsList.get(i).getQuestion()+ "','"+ questionsList.get(i).getAnswerA()
   +"','"+questionsList.get(i).getAnswerB()+"','"+questionsList.get(i).getAnswerC()+"','"+questionsList.get(i).getAnswerD()
   +"','"+questionsList.get(i).getAnswerTrue()+"')";
  }else{
  sql+=",('"+questionId+"','"+courseId+"','"+teacherId+"','"+questionsList.get(i).getChapter()+"','"+questionsList.get(i).getSection()
   + "','"+questionsList.get(i).getType()+"','"+questionsList.get(i).getQuestion()+ "','"+ questionsList.get(i).getAnswerA()
   +"','"+questionsList.get(i).getAnswerB()+"','"+questionsList.get(i).getAnswerC()+"','"+questionsList.get(i).getAnswerD()
   +"','"+questionsList.get(i).getAnswerTrue()+"')";
  }
 }
 questionsDao.batchSaveQuestionList(sql);
 }

@Insert("${sql}")
void batchSaveQuestionList(@Param("sql") String sql);