1 pom。xml
org.apache.poi
poi-ooxml
3.14-beta1
org.apache.poi
poi-ooxml-schemas
3.14-beta1
org.apache.poi
poi
3.14-beta1
org.apache.httpcomponents
httpclient
4.5.2
2 ExcelBean
public class ExcelBean implements java.io.Serializable{ private String headTextName; //列头（标题）名 private String propertyName; //对应字段名 private Integer cols; //合并单元格数 private XSSFCellStyle cellStyle; public ExcelBean(){ } public ExcelBean(String headTextName, String propertyName){ this.headTextName = headTextName; this.propertyName = propertyName; } public ExcelBean(String headTextName, String propertyName, Integer cols) { super(); this.headTextName = headTextName; this.propertyName = propertyName; this.cols = cols; } /* 省略了get和set方法 */}
3 excleutils
public class ExcelUtil { private final static String excel2003L =".xls"; //2003- 版本的excel private final static String excel2007U =".xlsx"; //2007+ 版本的excel /** * Excel导入 */ public static List
> getBankListByExcel(InputStream in, String fileName) throws Exception{ List
> list = null; //创建Excel工作薄 Workbook work = getWorkbook(in,fileName); if(null == work){ throw new Exception("创建Excel工作薄为空！"); } Sheet sheet = null; Row row = null; Cell cell = null; list = new ArrayList
>(); //遍历Excel中所有的sheet for (int i = 0; i < work.getNumberOfSheets(); i++) { sheet = work.getSheetAt(i); if(sheet==null){ continue;} //遍历当前sheet中的所有行 //包涵头部，所以要小于等于最后一列数,这里也可以在初始值加上头部行数，以便跳过头部 for (int j = sheet.getFirstRowNum(); j <= sheet.getLastRowNum(); j++) { //读取一行 row = sheet.getRow(j); //去掉空行和表头 if(row==null||row.getFirstCellNum()==j){ continue;} //遍历所有的列 List li = new ArrayList(); for (int y = row.getFirstCellNum(); y < row.getLastCellNum(); y++) { cell = row.getCell(y); li.add(getCellValue(cell)); } list.add(li); } } return list; } /** * 描述：根据文件后缀，自适应上传文件的版本 */ public static Workbook getWorkbook(InputStream inStr,String fileName) throws Exception{ Workbook wb = null; String fileType = fileName.substring(fileName.lastIndexOf(".")); if(excel2003L.equals(fileType)){ wb = new HSSFWorkbook(inStr); //2003- }else if(excel2007U.equals(fileType)){ wb = new XSSFWorkbook(inStr); //2007+ }else{ throw new Exception("解析的文件格式有误！"); } return wb; } /** * 描述：对表格中数值进行格式化 */ public static Object getCellValue(Cell cell){ Object value = null; DecimalFormat df = new DecimalFormat("0"); //格式化字符类型的数字 SimpleDateFormat sdf = new SimpleDateFormat("yyy-MM-dd"); //日期格式化 DecimalFormat df2 = new DecimalFormat("0.00"); //格式化数字 switch (cell.getCellType()) { case Cell.CELL_TYPE_STRING: value = cell.getRichStringCellValue().getString(); break; case Cell.CELL_TYPE_NUMERIC: if("General".equals(cell.getCellStyle().getDataFormatString())){ value = df.format(cell.getNumericCellValue()); }else if("m/d/yy".equals(cell.getCellStyle().getDataFormatString())){ value = sdf.format(cell.getDateCellValue()); }else{ value = df2.format(cell.getNumericCellValue()); } break; case Cell.CELL_TYPE_BOOLEAN: value = cell.getBooleanCellValue(); break; case Cell.CELL_TYPE_BLANK: value = ""; break; default: break; } return value; } /** * 导入Excel表结束 * 导出Excel表开始 * @param sheetName 工作簿名称 * @param clazz 数据源model类型 * @param objs excel标题列以及对应model字段名 * @param map 标题列行数以及cell字体样式 */ public static XSSFWorkbook createExcelFile(Class clazz, List objs, Map
> map, String sheetName) throws IllegalArgumentException,IllegalAccessException,InvocationTargetException,ClassNotFoundException, IntrospectionException, ParseException { // 创建新的Excel工作簿 XSSFWorkbook workbook = new XSSFWorkbook(); // 在Excel工作簿中建一工作表，其名为缺省值, 也可以指定Sheet名称 XSSFSheet sheet = workbook.createSheet(sheetName); // 以下为excel的字体样式以及excel的标题与内容的创建，下面会具体分析; createFont(workbook); //字体样式 createTableHeader(sheet, map); //创建标题（头） createTableRows(sheet, map, objs, clazz); //创建内容 return workbook; } private static XSSFCellStyle fontStyle; private static XSSFCellStyle fontStyle2; public static void createFont(XSSFWorkbook workbook) { // 表头 fontStyle = workbook.createCellStyle(); XSSFFont font1 = workbook.createFont(); font1.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD); font1.setFontName("黑体"); font1.setFontHeightInPoints((short) 14);// 设置字体大小 fontStyle.setFont(font1); fontStyle.setBorderBottom(XSSFCellStyle.BORDER_THIN); // 下边框 fontStyle.setBorderLeft(XSSFCellStyle.BORDER_THIN);// 左边框 fontStyle.setBorderTop(XSSFCellStyle.BORDER_THIN);// 上边框 fontStyle.setBorderRight(XSSFCellStyle.BORDER_THIN);// 右边框 fontStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER); // 居中 // 内容 fontStyle2=workbook.createCellStyle(); XSSFFont font2 = workbook.createFont(); font2.setFontName("宋体"); font2.setFontHeightInPoints((short) 10);// 设置字体大小 fontStyle2.setFont(font2); fontStyle2.setBorderBottom(XSSFCellStyle.BORDER_THIN); // 下边框 fontStyle2.setBorderLeft(XSSFCellStyle.BORDER_THIN);// 左边框 fontStyle2.setBorderTop(XSSFCellStyle.BORDER_THIN);// 上边框 fontStyle2.setBorderRight(XSSFCellStyle.BORDER_THIN);// 右边框 fontStyle2.setAlignment(XSSFCellStyle.ALIGN_CENTER); // 居中 } /** * 根据ExcelMapping 生成列头（多行列头） * * @param sheet 工作簿 * @param map 每行每个单元格对应的列头信息 */ public static final void createTableHeader(XSSFSheet sheet, Map
> map) { int startIndex=0;//cell起始位置 int endIndex=0;//cell终止位置 for (Map.Entry
> entry : map.entrySet()) { XSSFRow row = sheet.createRow(entry.getKey()); List
excels = entry.getValue(); for (int x = 0; x < excels.size(); x++) { //合并单元格 if(excels.get(x).getCols()>1){ if(x==0){ endIndex+=excels.get(x).getCols()-1; CellRangeAddress range=new CellRangeAddress(0,0,startIndex,endIndex); sheet.addMergedRegion(range); startIndex+=excels.get(x).getCols(); }else{ endIndex+=excels.get(x).getCols(); CellRangeAddress range=new CellRangeAddress(0,0,startIndex,endIndex); sheet.addMergedRegion(range); startIndex+=excels.get(x).getCols(); } XSSFCell cell = row.createCell(startIndex-excels.get(x).getCols()); cell.setCellValue(excels.get(x).getHeadTextName());// 设置内容 if (excels.get(x).getCellStyle() != null) { cell.setCellStyle(excels.get(x).getCellStyle());// 设置格式 } cell.setCellStyle(fontStyle); }else{ XSSFCell cell = row.createCell(x); cell.setCellValue(excels.get(x).getHeadTextName());// 设置内容 if (excels.get(x).getCellStyle() != null) { cell.setCellStyle(excels.get(x).getCellStyle());// 设置格式 } cell.setCellStyle(fontStyle); } } } } public static void createTableRows(XSSFSheet sheet, Map
> map, List objs, Class clazz) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException, IntrospectionException, ClassNotFoundException, ParseException { int rowindex = map.size(); int maxKey = 0; List
ems = new ArrayList<>(); for (Map.Entry
> entry : map.entrySet()) { if (entry.getKey() > maxKey) { maxKey = entry.getKey(); } } ems = map.get(maxKey); List
widths = new ArrayList
(ems.size()); for (Object obj : objs) { XSSFRow row = sheet.createRow(rowindex); for (int i = 0; i < ems.size(); i++) { ExcelBean em = (ExcelBean) ems.get(i); // 获得get方法 PropertyDescriptor pd = new PropertyDescriptor(em.getPropertyName(), clazz); Method getMethod = pd.getReadMethod(); Object rtn = getMethod.invoke(obj); String value = ""; // 如果是日期类型进行转换 if (rtn != null) { if (rtn instanceof Date) { value = DateUtils.formatDate((Date)rtn,"yyyy-MM-dd"); } else if(rtn instanceof BigDecimal){ NumberFormat nf = new DecimalFormat("#,##0.00"); value=nf.format((BigDecimal)rtn).toString(); } else if((rtn instanceof Integer) && (Integer.valueOf(rtn.toString())<0 )){ value="--"; }else { value = rtn.toString(); } } XSSFCell cell = row.createCell(i); cell.setCellValue(value); cell.setCellType(XSSFCell.CELL_TYPE_STRING); cell.setCellStyle(fontStyle2); // 获得最大列宽 int width = value.getBytes().length * 300; // 还未设置，设置当前 if (widths.size() <= i) { widths.add(width); continue; } // 比原来大，更新数据 if (width > widths.get(i)) { widths.set(i, width); } } rowindex++; } // 设置列宽 for (int index = 0; index < widths.size(); index++) { Integer width = widths.get(index); width = width < 2500 ? 2500 : width + 300; width = width > 10000 ? 10000 + 300 : width + 300; sheet.setColumnWidth(index, width); } }}
4 导入接口:
@RequestMapping("/import")public String impotr(HttpServletRequest request, Model model) throws Exception { int adminId = 1; //获取上传的文件 MultipartHttpServletRequest multipart = (MultipartHttpServletRequest) request; MultipartFile file = multipart.getFile("upfile"); String month = request.getParameter("month"); InputStream in = file.getInputStream(); //数据导入 salaryService.importExcelInfo(in,file,month,adminId); in.close(); return "redirect:/salary/index.html";}
5 service，mapper
public void importExcelInfo(InputStream in, MultipartFile file, String salaryDate,Integer adminId) throws Exception{ List
> listob = ExcelUtil.getBankListByExcel(in,file.getOriginalFilename()); List
salaryList = new ArrayList
(); //遍历listob数据，把数据放到List中 for (int i = 0; i < listob.size(); i++) { List
ob = listob.get(i); Salarymanage salarymanage = new Salarymanage(); //设置编号 salarymanage.setSerial(SerialUtil.salarySerial()); //通过遍历实现把每一列封装成一个model中，再把所有的model用List集合装载 salarymanage.setAdminId(adminId); salarymanage.setCompany(String.valueOf(ob.get(1))); salarymanage.setNumber(String.valueOf(ob.get(2))); salarymanage.setName(String.valueOf(ob.get(3))); salarymanage.setSex(String.valueOf(ob.get(4))); salarymanage.setCardName(String.valueOf(ob.get(5))); salarymanage.setBankCard(String.valueOf(ob.get(6))); salarymanage.setBank(String.valueOf(ob.get(7))); //object类型转Double类型 salarymanage.setMoney(Double.parseDouble(ob.get(8).toString())); salarymanage.setRemark(String.valueOf(ob.get(9))); salarymanage.setSalaryDate(salaryDate); salaryList.add(salarymanage); } //批量插入 salarymanageDao.insertInfoBatch(salaryList);}
insert into salarymanage (admin_id, serial,company, number, name,sex, card_name, bank_card, bank, money, remark,salary_date) values
(#{item.adminId}, #{item.serial}, #{item.company},#{item.number}, #{item.name}, #{item.sex}, #{item.cardName},#{item.bankCard}, #{item.bank}, #{item.money}, #{item.remark}, #{item.salaryDate})
6 导出控制层
@RequestMapping("/export")public @ResponseBody void export(HttpServletRequest request, HttpServletResponse response) throwsClassNotFoundException, IntrospectionException, IllegalAccessException, ParseException, InvocationTargetException { String salaryDate = request.getParameter("salaryDate"); if(salaryDate!=""){ response.reset(); //清除buffer缓存 Map
map=new HashMap
(); // 指定下载的文件名，浏览器都会使用本地编码，即GBK，浏览器收到这个文件名后，用ISO-8859-1来解码，然后用GBK来显示 // 所以我们用GBK解码，ISO-8859-1来编码，在浏览器那边会反过来执行。 response.setHeader("Content-Disposition", "attachment;filename=" + new String(salaryDate.getBytes("GBK"),"ISO-8859-1")); response.setContentType("application/vnd.ms-excel;charset=UTF-8"); response.setHeader("Pragma", "no-cache"); response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 0); XSSFWorkbook workbook=null; //导出Excel对象 workbook = salaryService.exportExcelInfo(salaryDate); OutputStream output; try { output = response.getOutputStream(); BufferedOutputStream bufferedOutPut = new BufferedOutputStream(output); bufferedOutPut.flush(); workbook.write(bufferedOutPut); bufferedOutPut.close(); } catch (IOException e) { e.printStackTrace(); } }}
7 service
public XSSFWorkbook exportExcelInfo(String salaryDate) throws InvocationTargetException, ClassNotFoundException, IntrospectionException, ParseException, IllegalAccessException { //根据条件查询数据，把数据装载到一个list中 List
list = salarymanageDao.selectApartInfo(salaryDate); for(int i=0;i
excel=new ArrayList<>(); Map
> map=new LinkedHashMap<>(); XSSFWorkbook xssfWorkbook=null; //设置标题栏 excel.add(new ExcelBean("序号","id",0)); excel.add(new ExcelBean("厂名","company",0)); excel.add(new ExcelBean("工号","number",0)); excel.add(new ExcelBean("姓名","name",0)); excel.add(new ExcelBean("性别","sex",0)); excel.add(new ExcelBean("开户名","cardName",0)); excel.add(new ExcelBean("银行卡号","bankCard",0)); excel.add(new ExcelBean("开户行","bank",0)); excel.add(new ExcelBean("金额","money",0)); excel.add(new ExcelBean("备注","remark",0)); map.put(0, excel); String sheetName = salaryDate + "月份收入"; //调用ExcelUtil的方法 xssfWorkbook = ExcelUtil.createExcelFile(Salarymanage.class, list, map, sheetName); return xssfWorkbook;}