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- package net.lab1024.smartadmin.util;
- import cn.afterturn.easypoi.excel.ExcelExportUtil;
- import cn.afterturn.easypoi.excel.ExcelImportUtil;
- import cn.afterturn.easypoi.excel.entity.ExportParams;
- import cn.afterturn.easypoi.excel.entity.ImportParams;
- import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
- import org.apache.commons.lang3.StringUtils;
- import org.apache.poi.ss.usermodel.Workbook;
- import org.springframework.web.multipart.MultipartFile;
- import javax.servlet.http.HttpServletResponse;
- import java.io.File;
- import java.io.IOException;
- import java.net.URLEncoder;
- import java.util.List;
- import java.util.Map;
- import java.util.NoSuchElementException;
- /**
- * @author: zhuoda
- * @create: 2020-03-30 14:27 PM from win10
- */
- public class SmartEasyPoiExcelUtil {
- public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass,
- String fileName, boolean isCreateHeader, HttpServletResponse response) throws IOException {
- ExportParams exportParams = new ExportParams(title, sheetName);
- exportParams.setCreateHeadRows(isCreateHeader);
- defaultExport(list, pojoClass, fileName, response, exportParams);
- }
- public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName,
- HttpServletResponse response) throws IOException {
- defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));
- }
- public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws IOException {
- defaultExport(list, fileName, response);
- }
- private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName,
- HttpServletResponse response, ExportParams exportParams) throws IOException {
- Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);
- if (workbook != null) ;
- downLoadExcel(fileName, response, workbook);
- }
- private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) throws IOException {
- response.setHeader("content-Type", "application/vnd.ms-excel");
- response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
- response.setCharacterEncoding("UTF-8");
- workbook.write(response.getOutputStream());
- }
- private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws IOException {
- Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
- if (workbook != null) ;
- downLoadExcel(fileName, response, workbook);
- }
- public static <T> List<T> importExcel(String filePath, Integer titleRows, Integer headerRows, Class<T> pojoClass) {
- if (StringUtils.isBlank(filePath)) {
- return null;
- }
- ImportParams params = new ImportParams();
- params.setTitleRows(titleRows);
- params.setHeadRows(headerRows);
- List<T> list = null;
- try {
- list = ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
- } catch (NoSuchElementException e) {
- //throw new NormalException("模板不能为空");
- } catch (Exception e) {
- e.printStackTrace();
- //throw new NormalException(e.getMessage());
- }
- return list;
- }
- public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass) {
- if (file == null) {
- return null;
- }
- ImportParams params = new ImportParams();
- params.setTitleRows(titleRows);
- params.setHeadRows(headerRows);
- List<T> list = null;
- try {
- list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);
- } catch (NoSuchElementException e) {
- // throw new NormalException("excel文件不能为空");
- } catch (Exception e) {
- //throw new NormalException(e.getMessage());
- System.out.println(e.getMessage());
- }
- return list;
- }
- }
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