前台代码:
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< button class="btn btn-sm btn-success" type="submit" id="detailEp" onclick="return exportCheck(true);" forbid="yes"> < i class="icon-arrow-right bigger-110"></ i > 导出 </ button > < br >< script > $(function() { var timer = ""; }); //点击导出按钮时禁用导出按钮 $("#myForm").submit(function() { $("button[type=submit]",this).attr("disabled","disabled"); //提交导出后定时去查看有没有导出成功 timer = setInterval(refrashPg,1000); }) //导出成功后会放开导出按钮的禁用 function refrashPg() { if (getCk() =="1") { clearInterval(timer); $("#detailEp").removeAttr("disabled"); } delCk(); } //js获取到cookie function getCk() { debugger var ck = document.cookie.split(";"); var ckname = ""; for (var i = 0;i<ck.length;i++) { var arr = ck[i].split("="); if (arr[0] =="updtstatus") { ckname = arr[1]; break; } } return ckname; } //js删除掉cookie function delCk() { var exp = new Date(); var name = "updtstatus"; exp.setTime(exp.getTime()-1000); var cval = getCk(); document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString(); } } |
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</ script > |
后台导出代码就是普通的Java POI代码:
1 public void buildExcelDocument(Map<String, Object> obj,String fileName,String type, 2 HttpServletRequest request, HttpServletResponse response) 3 throws Exception { 4 HSSFWorkbook workbook = new HSSFWorkbook(); 5 if ("1".equals(type)) { 6 List<Map<String, Object>> contentList = (List<Map<String, Object>>) obj.get("content"); 7 HSSFSheet sheet = workbook.createSheet("sheet1");//创建Excel的版本是2003-2007(xls) 如果需要2010的话,用 XSSFSheet 8 Map<String,String> titleList = (Map<String, String>) obj.get("title"); 9 //表头的key 对应内容listMap中的map的key 10 List<String> mkey = new ArrayList<String>(); 11 //表头的value 表头 12 List<String> mvalue = new ArrayList<String>(); 13 Iterator<Entry<String, String>> it = titleList.entrySet().iterator(); 14 while(it.hasNext()){ 15 @SuppressWarnings("rawtypes") 16 java.util.Map.Entry entry = (java.util.Map.Entry)it.next(); 17 mkey.add((String) entry.getKey()); 18 mvalue.add((String) entry.getValue()); 19 } 20 sheet.setDefaultColumnWidth((short) 12); 21 HSSFCell cell = null; 22 for (int i = 0;i<mvalue.size();i++) { 23 cell = getCell(sheet, 0, i); 24 setText(cell, mvalue.get(i)); 25 } 26 27 for (short i = 0; i < contentList.size(); i++) { 28 HSSFRow sheetRow = sheet.createRow(i+1); 29 Map<String, Object> entity = contentList.get(i); 30 for (int j = 0;j< mkey.size();j++) { 31 if (entity.get(mkey.get(j)) instanceof String) { 32 sheetRow.createCell(j).setCellValue((String)entity.get(mkey.get(j))); 33 } else if (entity.get(mkey.get(j)) instanceof Double) { 34 sheetRow.createCell(j).setCellValue((Double)entity.get(mkey.get(j))); 35 } else if (entity.get(mkey.get(j)) instanceof Date){ 36 String date = (entity.get(mkey.get(j))).toString(); 37 sheetRow.createCell(j).setCellValue(date.substring(0, 10)); 38 } else if (entity.get(mkey.get(j)) instanceof BigDecimal){ 39 sheetRow.createCell(j).setCellValue((entity.get(mkey.get(j))).toString()); 40 } 41 } 42 } 43 } 44 } else if ("2".equals(type)) { 45 List<String[]> contentList = (List<String[]>) obj.get("content"); 46 HSSFSheet sheet = workbook.createSheet("sheet1"); 47 String[] titleList = (String[]) obj.get("title"); 48 HSSFCell cell = null; 49 for (int i = 0;i<titleList.length;i++) { 50 cell = getCell(sheet, 0, i); 51 setText(cell, titleList[i]); 52 } 53 for (short i = 0; i < contentList.size(); i++) { 54 HSSFRow sheetRow = sheet.createRow(i+1); 55 String[] detail = contentList.get(i); 56 for (int j = 0;j< detail.length;j++) { 57 sheetRow.createCell(j).setCellValue((String)contentList.get(i)[j]); 58 } 59 } 60 } 61 62 //设置下载时客户端Excel的名称 63 String filename = fileName + ".xls"; 64 //处理中文文件名 65 filename = Chineseutil.encodeFilename(filename, request); 66 response.setContentType("application/Vnd.ms-excel;charset=UTF-8"); 67 response.setHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes("gb2312"), "iso8859-1")); 68 OutputStream ouputStream = response.getOutputStream(); 69 workbook.write(ouputStream); 70 71 //导出数据后将信息存入cookie 72 Cookie status = new Cookie("updtstatus", "1"); 73 status.setMaxAge(3600);//设置cookie存活时间1个小时 74 response.addCookie(status); 75 76 ouputStream.flush(); 77 ouputStream.close(); 78 }