模板轉載地址:https://www.cnblogs.com/zhangyangtao/p/9802948.html
直接上代碼(我是基於ssm寫的demo,導入文件目前只能讀取.xls后綴的excel文件)
1 <!--導入的核心依賴--> 2 <dependency> 3 <groupId>net.sourceforge.jexcelapi</groupId> 4 <artifactId>jxl</artifactId> 5 <version>2.6.12</version> 6 </dependency>
1 //這是下載模板的方法 2 @RequestMapping("/downloadExcel.do") 3 @ResponseBody 4 public void downloadExcel(HttpServletResponse res, HttpServletRequest req) throws Exception { 5 //文件的名稱 6 String fileName = "excelTemplate.xls"; 7 ServletOutputStream out; 8 res.setContentType("multipart/form-data"); 9 res.setCharacterEncoding("UTF-8"); 10 res.setContentType("text/html"); 11 //文件的路徑 resource/template/1.xlsx 12 String filePath = getClass().getResource("/template/" + fileName).getPath(); 13 System.out.println(filePath); 14 String userAgent = req.getHeader("User-Agent"); 15 if (userAgent.contains("MSIE") || userAgent.contains("Trident")) { 16 fileName = java.net.URLEncoder.encode(fileName, "UTF-8"); 17 }else { 18 // 非IE瀏覽器的處理: 19 fileName = new String((fileName).getBytes("UTF-8"), "ISO-8859-1"); 20 } 21 filePath = URLDecoder.decode(filePath, "UTF-8"); 22 res.setHeader("Content-Disposition", "attachment;fileName=" + fileName); 23 FileInputStream inputStream = new FileInputStream(filePath); 24 out = res.getOutputStream(); 25 int b = 0; 26 byte[] buffer = new byte[1024]; 27 while ((b = inputStream.read(buffer)) != -1) { 28 // 4.寫到輸出流(out)中 29 out.write(buffer, 0, b); 30 } 31 inputStream.close(); 32 out.flush(); 33 out.close(); 34 // if (out != null) { 35 // out.flush(); 36 // out.close(); 37 // 38 // } 39 40 } 41
導入excel文件讀取數據的方法
1 @RequestMapping("/importExcel.do") 2 public void import2(String xlsPath) throws IOException, BiffException { 3 4 // 導入已存在的Excel文件,獲得只讀的工作薄對象 5 FileInputStream fis = new FileInputStream(xlsPath); 6 Workbook wk = Workbook.getWorkbook(fis); 7 // 獲取第一張Sheet表 8 Sheet sheet = wk.getSheet(0); 9 // 獲取總行數 10 int rowNum = sheet.getRows(); 11 System.out.println("插入總行數:" + (rowNum-2)); 12 // 從數據行開始迭代每一行 13 for (int i = 2; i < rowNum; i++) { 14 // 先判斷插入的數據是否和數據庫的數據重復 15 System.out.println(sheet.getCell(0, i).getContents()); 16 if (userService.findUser(sheet.getCell(0, i).getContents()) > 0) { 17 continue; 18 } 19 User u = new User(); 20 // getCell(column,row),表示取得指定列指定行的單元格(Cell) 21 // getContents()獲取單元格的內容,返回字符串數據。適用於字符型數據的單元格 22 // 使用實體類封裝單元格數據 23 u.setName(sheet.getCell(0, i).getContents()); 24 u.setAge(sheet.getCell(1, i).getContents()); 25 u.setNickName(sheet.getCell(2, i).getContents()); 26 userService.saveUser(u); 27 System.out.println("成功插入:" + sheet.getCell(0, i).getContents()); 28 29 /* 30 * // 判斷單元格的類型,單元格主要類型LABEL、NUMBER、DATE if (sheet.getCell(2, i).getType == 31 * CellType.NUMBER) { 32 * 33 * // 轉化為數值型單元格 NumberCell numCell = (NumberCell) sheet.getCell(2, i); // 34 * NumberCell的getValue()方法取得單元格的數值型數據 info.setRscore(numCell.getValue()); 35 * 36 * } if (sheet.getCell(3, i).getType == CellType.NUMBER) { NumberCell numCell = 37 * (NumberCell) sheet.getCell(3, i); info.setRscore(numCell.getValue); } 38 * 39 * if (sheet.getCell(4, i).getType == CellType.DATE) { DateCell dateCell = 40 * (DateCell) sheet.getCell(4, i); // DateCell的getDate()方法取得單元格的日期型數據 41 * info.setDate(dateCell.getDate()); } 42 */ 43 } 44 fis.close(); 45 wk.close(); 46 }