批量导入

//批量导入
@Transactional(rollbackFor = BusinessException.class)
public void doImport(MultipartFile file) throws BusinessException {
    List<Document> documentList = new ArrayList<Document>();
    SimpleDateFormat dateFormater = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    Date bgnDate = new Date();
    System.out.println("开始导入时间:" + dateFormater.format(bgnDate));
    try {
        List<Document> list = excelTransFromList(file);
        for (int i = 0; i < list.size(); i++) {
            Document document = list.get(i);

            //查询所属医院
            if (document.getCode() != null && !"".equals(document.getCode())) {
                if ("无".equals(document.getCode())) {
                    document.setCode("0");
                }
            } else {
                document.setCode("0");
            }
            document.setGmtCreate(new Date());
            documentList.add(document);
        }
        try {
            iDocumentMapper.insertBatch(documentList);
        } catch (Exception e) {
            throw new BusinessException(BusinessException.CODE_SAVE_ERROR, BusinessException.MSG_SAVE_ERROR);
        }
    } catch (BusinessException e) {
        throw new BusinessException(e.getErrCode(), e.getErrMsg());
    }
}

/**
 * @throws BusinessException
 * @Title: excelTransFromList
 * @Description: 模板转换成对象list
 * @param: MultipartFile
 * @return: List<Book>
 */
public List<Document> excelTransFromList(MultipartFile file) throws BusinessException {
    InputStream in;
    try {
        in = file.getInputStream();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        throw new BusinessException(BusinessException.CODE_EXCEL_VESION_ERROR, BusinessException.MSG_EXCEL_VESION_ERROR);
    }
    //获取sheetName名字
    String sheetName = "专业文献导入";
    // excel的表头与文字对应，获取excel表头
    LinkedHashMap<String, String> map = new LinkedHashMap<>();
    map.put("标题", "title");
    map.put("作者", "author");
    map.put("刊名", "journalName");
    map.put("年", "year");
    map.put("卷", "file");
    map.put("期", "period");
    map.put("页码", "pageNum");
    map.put("摘要", "summary");
    map.put("关键字", "keyword");
    map.put("作者单位", "authorUnit");
    map.put("全文附件", "fileUrl");
    map.put("专题类型", "specialId");
    map.put("组织机构编码", "code");
    map.put("组织机构名称", "orgName");
    map.put("语言", "language");
    map.put("创建人", "createrId");
    //获取组合excle表头数组，防止重复用的
    String[] uniqueFields = new String[]{"标题", "作者", "刊名", "年", "卷",
            "期", "页码", "摘要", "关键字", "作者单位", "全文附件", "专题类型", "组织机构编码", "组织机构名称", "语言", "创建人"};
    //excel转化成的list集合
    //调用excle共用类，转化成list
    List<Document> list = ExcelUtil.excelToList(in, sheetName, Document.class, map, uniqueFields, "document");
    return list;
}