Practical skills of easyexcel

download , Upload excel

/**  Template download ( With poi Of ） */
ClassPathResource resource = new ClassPathResource("template/ Enterprise information template .xlsx");
String path = resource.getURL().getPath();
path = URLDecoder.decode(path, "UTF-8");
File file = new File(path);
Workbook workbook = new XSSFWorkbook(file);
response.setCharacterEncoding("UTF-8");
response.setContentType("application/octet-stream;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
workbook.write(response.getOutputStream());
/**  Derived data  */
@GetMapping("download")
public void download(HttpServletResponse response) throws IOException {
    
    response.setContentType("application/vnd.ms-excel");
    response.setCharacterEncoding("utf-8");
 response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
    EasyExcel.write(response.getOutputStream(), xx.class).sheet(" Templates ").doWrite(List);
}

/** excel Upload of files  */
@PostMapping("upload")
@ResponseBody
public String upload(MultipartFile file) throws IOException {
    
    EasyExcel.read(file.getInputStream(), DemoData.class, new DemoDataListener()).sheet().doRead();
    return "success";
}

Reading data

InputStream inputStream = multipartFile.getInputStream();
      List<ExcelImportTktEntInfoVo> list = EasyExcel.read(inputStream).head(ExcelImportTktEntInfoVo.class).sheet().doReadSync();

annotation

@ColumnWidth(30)
public class ExcelExportTktInfoVo {
    
    @ExcelIgnore
    private String esopEnterpriseId;
    @ExcelProperty(" Local market ")
    private String busiRegCityName;
    }