表格导出导入

1.导出

地址和查询条件：

window.open('mng/developer/export?authState=' + authState + '&devStyle=' + devStyle + '&keywords=' + keywords);

public void export(HttpServletRequest request, HttpServletResponse response, String authState, String devStyle, String keywords) throws IOException, ParseException {

//第一行标题

public static final String[] header= {"name","age"｝

//要导出的集合

List<User> users;

//存放数据的容器

String[][] body = new String[users.size()][header.length];

String name = "表名"；

//数据处理

for (int i = 0; i < devList.size(); i++) {
body[i][0] = users.get(i).getName();
body[i][1] = users.get(i).getAge();

}

POIExportUtils.exportExcel(header, body, name, request, response);

｝

public class POIExportUtils {

public static void exportExcel(String[] header,String[][] body,String fileName,
HttpServletRequest request,HttpServletResponse response) throws IOException{

//创建HSSFWorkbook对象
XSSFWorkbook wb = new XSSFWorkbook();
//创建HSSFSheet对象
XSSFSheet sheet = wb.createSheet("sheet0");

//设置字体:
XSSFFont font = wb.createFont();
XSSFFont font1 = wb.createFont();
//表头样式
XSSFCellStyle style =ExcelStyleUtils.getTableHeaderStyle(wb) ;
style.setFont(ExcelStyleUtils.getTableHeaderFont(font));

//表体样式
XSSFCellStyle style1 =ExcelStyleUtils.getTableBodyStyle(wb) ;
style1.setFont(ExcelStyleUtils.getTableBodyFont(font1));



for(int j = 1;j<body.length+1;j++){
XSSFRow bodyRow = sheet.createRow(j);
for(int k = 0;k<body[j-1].length;k++){
XSSFCell cell=bodyRow.createCell(k);
cell.setCellValue(body[j-1][k]);
cell.setCellStyle(style1);

}
}
//创建HSSFRow对象
XSSFRow headerRow = sheet.createRow(0);
headerRow.setHeightInPoints(20);
for(int i = 0;i<header.length;i++){
//创建HSSFCell对象
XSSFCell cell=headerRow.createCell(i);
//设置单元格的值
cell.setCellValue(header[i]);
cell.setCellStyle(style);

sheet.autoSizeColumn(i);
}


String name = StringUtil.processFileName(request,fileName);

response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-disposition", "attachment;filename="+name+".xlsx");

//输出Excel文件
OutputStream output = response.getOutputStream();
wb.write(output);
output.flush();
output.close();

}

}

 2.导入

/**
 *合作方信息导入
 *
 * @param request
 * @param file
 * @author: yaozhenhua  2019/4/1 20:01
 */
@PostMapping("user/import")
public Result importUser(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws Exception {
    UserVO currentUser = (UserVO) request.getSession().getAttribute(Constant.CURR_USER);
    Result result = userService.parseUserFile(file, currentUser.getId());
    return result;
}

public Result parseUserFile(MultipartFile file, long parentId) throws Exception {
    String fileName = file.getOriginalFilename();
    String[] splits = fileName.split("\\.");
    String fileType = splits[splits.length - 1];
    // 解析Excel文件
    List<Sheet> sheetList = parseUserService.readExcel(file.getInputStream(), fileType);
    if (EmptyUtils.isEmpty(sheetList)) {
        throw AobpException.notFoundException("合作方信息清单:" + file.getOriginalFilename() + "上传失败!");
    }
    for (Sheet sheet : sheetList) {
        if ("合作方信息".equals(sheet.getSheetName())) {
            return importUser(sheet, parentId);
        }
    }
    return Result.error();
}

@Transactional(rollbackFor = {RuntimeException.class, Exception.class})
protected Result importUser(Sheet sheet, long parentId) {
    ExcelFlg excelFlg = this.getUserListIndex(sheet);
    List<com.agree.aobp.common.entity.User> userList = new ArrayList<>();
    List<UserEnterpriseDTO> enterpriseList = new ArrayList<>();
    int endRow = sheet.getLastRowNum();
    for (int i = 1; i <= endRow; i++) {
        //取值
        String userPhone = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getUserPhoneFlg()));
        String enterpriseName = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getEnterpriseNameFlg()));
        String enterpriseDesc = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getEnterpriseDescFlg()));
        String enterpriseLicenseNum = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getEnterpriseLicenseNumFlg()));
        String registerCapital = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getEnterpriseRegisterCapitalFlg()));
        String registerAddress = parseUserService.getCellValue(sheet.getRow(i).getCell(
                excelFlg.getEnterpriseRegisterAddressFlg()));
        //字段校验：数据库校验
        if (EmptyUtils.isEmpty(userPhone) || EmptyUtils.isEmpty(enterpriseName) || EmptyUtils.isEmpty(enterpriseDesc)
                || EmptyUtils.isEmpty(enterpriseLicenseNum) || EmptyUtils.isEmpty(registerCapital) || EmptyUtils.isEmpty(registerAddress)) {
            return Result.error("字段非空");
        }
        if (!Pattern.matches(Constant.REGEX_PHONE_NUM, userPhone)) {
            return Result.error("请输入正确的手机号码：" + userPhone + "！");
        }
        if (!this.checkPhoneNumber(userPhone)) {
            return Result.error("此手机号码:" + userPhone + "已被使用！");
        }
        if (!Pattern.matches(Constant.REGEX_ENTERPRISE_NAME, enterpriseName)) {
            return Result.error("公司名应为2到50位中文字符！");
        }
        if (!Pattern.matches(Constant.REGEX_ENTERPRISE_LICENSE_NUM, enterpriseLicenseNum)) {
            return Result.error("社会信用码应为18位数字和大写字母！");
        }
        if (!Pattern.matches(Constant.REGEX_REGISTER_CAPITAL, registerCapital)) {
            return Result.error("注册资金最大10位整数！");
        }
        if (registerAddress.length() > 100) {
            return Result.error("注册地址长度应小于100");
        }
        //构建数据
        com.agree.aobp.common.entity.User user = new com.agree.aobp.common.entity.User();
        String userId = UUID.randomUUID().toString().replaceAll("-", "");
        user.setUserId(userId);
        user.setUsername(userPhone);
        user.setUserPhone(userPhone);
        Long roleId = roleDao.selectIdByRoleName(Constant.ROLE_INDEPENDENT_MERCHANT);
        user.setRoleId(roleId);
        user.setParentId(parentId);
        UserEnterpriseDTO userEnterpriseDTO = new UserEnterpriseDTO();
        //userEnterprise.setUserId(userId);
        userEnterpriseDTO.setEnterpriseName(enterpriseName);
        userEnterpriseDTO.setEnterpriseDesc(enterpriseDesc);
        userEnterpriseDTO.setEnterpriseLicenseNum(enterpriseLicenseNum);
        userEnterpriseDTO.setRegisterCapital(new BigDecimal(registerCapital));
        userEnterpriseDTO.setRegisterAddress(registerAddress);
        userEnterpriseDTO.setIsWillLoan(Constant.WILL_LOAN_YES);
        userList.add(user);
        enterpriseList.add(userEnterpriseDTO);
    }
    for (int j = 0; j < userList.size(); j++) {
        for (int h = j + 1; h < userList.size(); h++) {
            if (userList.get(j).getUserPhone().equals(userList.get(h).getUserPhone())) {
                return Result.error("传入的手机号码：" + userList.get(j).getUserPhone() + " 重复！");
            }
        }
    }
    //入库
    for (int i = 0; i < userList.size(); i++) {
        this.insertUser(userList.get(i));
        enterpriseList.get(i).setUserId(userList.get(i).getId());
        this.insertUserEnterprise(enterpriseList.get(i));
    }
    return Result.ok("合作方信息导入成功");
}

/**
 * @param sheet
 * @Description: 字段排序
 * @return: void
 * @author: yaozhenhua  2019/1/6 10:22
 */
private ExcelFlg getUserListIndex(Sheet sheet) {
    Row row = sheet.getRow(0);
    int endCellNum = row.getLastCellNum();
    ExcelFlg excelFlg = new ExcelFlg();
    for (int i = 0; i < endCellNum; i++) {
        if (Constant.USER_PHONE.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setUserPhoneFlg(i);
            continue;
        } else if (Constant.ENTERPRISE_NAME.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setEnterpriseNameFlg(i);
            continue;
        } else if (Constant.ENTERPRISE_DESC.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setEnterpriseDescFlg(i);
            continue;
        } else if (Constant.ENTERPRISE_REGISTER_ADDRESS.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setEnterpriseRegisterAddressFlg(i);
            continue;
        } else if (Constant.ENTERPRISE_REGISTER_CAPITAL.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setEnterpriseRegisterCapitalFlg(i);
            continue;
        } else if (Constant.ENTERPRISE_LICENSE_NUM.equals(parseUserService.getCellValue(row.getCell(i)))) {
            excelFlg.setEnterpriseLicenseNumFlg(i);
            continue;
        }
    }
    return excelFlg;
}

/**
 * @ClassName: ParseUserServiceImpl
 * @Description: 读取xls, xlsx文件实现
 * @author: yaozhenhua
 * @date: 2019/1/6 0:45
 */
@Service
public class ParseUserServiceImpl implements ParseUserService {
    @Override
    public List<Sheet> readExcel(InputStream inputStream, String type) throws AobpException, IOException {
        Workbook wb = null;
        try {
            switch (type) {
                case Constant.EXCEL_XLS:
                    wb = new HSSFWorkbook(inputStream);
                    break;
                case Constant.EXCEL_XLSX:
                    wb = new XSSFWorkbook(inputStream);
                    break;
                default:
                    throw AobpException.paramsInvalidException("上传文件不正确");
            }
            List<Sheet> sheetList = parseSheet(wb);
            return sheetList;
        } catch (IOException e) {
            throw e;
        } finally {
            IOUtils.closeQuietly(inputStream);
        }
    }

    public List<Sheet> parseSheet(Workbook wb) {
        List<Sheet> sheetList = new ArrayList<Sheet>();
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {
            sheetList.add(wb.getSheetAt(i));
        }
        return sheetList;
    }

    @Override
    public String getCellValue(Cell cell) {
        String value = "";
        if (!EmptyUtils.isEmpty(cell)) {
            switch (cell.getCellTypeEnum()) {
                case STRING:
                    value = cell.getRichStringCellValue().getString();
                    break;
                case NUMERIC:
                    if (HSSFDateUtil.isCellDateFormatted(cell)) {
                        Date date = cell.getDateCellValue();
                        value = DateFormatUtils.format(date, "yyyy-MM-dd");
                    } else {
                        long dd = (long) cell.getNumericCellValue();
                        value = dd + "";
                    }
                    break;
                case BLANK:
                    value = "";
                    break;
                case FORMULA:
                    value = String.valueOf(cell.getCellFormula());
                    break;
                case BOOLEAN:
                    value = String.valueOf(cell.getBooleanCellValue());
                    break;
                case ERROR:
                    value = String.valueOf(cell.getErrorCellValue());
                    break;
                default:
                    throw new IllegalStateException("Unexpected cell type (" + cell.getCellTypeEnum() + ")");
            }
        }
        return value.trim();
    }

}
附录：

String USER_PHONE = "手机号码";
String ENTERPRISE_NAME = "公司名";
String ENTERPRISE_DESC = "公司描述";
String ENTERPRISE_REGISTER_ADDRESS = "注册地址";
String ENTERPRISE_REGISTER_CAPITAL = "注册资金";
String ENTERPRISE_LICENSE_NUM = "社会信用码";