java匯出json資料到excel中
阿新 • • 發佈：2019-06-27
可以用前端js導，也可以使用後端的POI匯出
前端匯出
base64(s) { return window.btoa(unescape(encodeURIComponent(s))) }, exportExcel() { // 前端匯出excel console.log(this.showList) let str = '<tr><td>代理名稱</td><td>allianceid</td><td>attachmentFileId</td>' for (let i = 0; i < this.showList.length; i++) { str += '<tr>' for (let item in this.showList[i]) { // 增加\t為了不讓表格顯示科學計數法或者其他格式 str += `<td>${this.showList[i][item] + '\t'}</td>` } str += '</tr>' } let worksheet = 'Sheet1' let uri = 'data:application/vnd.ms-excel;base64,' // 下載的表格模板資料 let template = `<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"> <head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet> <x:Name>${worksheet}</x:Name> <x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet> </x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--> </head><body><table>${str}</table></body></html>` // 下載模板 window.location.href = uri + this.base64(template) },//showList是table資料
後端POI匯出excel
public static ResponseEntity<byte[]> export(List<Position> pos) throws IOException {
//建立一個 excel 文件
HSSFWorkbook workbook = new HSSFWorkbook();
//建立 excel 屬性配置
workbook.createInformationProperties();
//獲取並且配置文件屬性
DocumentSummaryInformation information = workbook.getDocumentSummaryInformation();
information.setCategory("職位表");
information.setManager("管理員");
information.setCompany("liy");
//建立表單
HSSFSheet sheet = workbook.createSheet();
HSSFRow row = sheet.createRow(0);
HSSFCell c0 = row.createCell(0);
HSSFCell c1 = row.createCell(1);
HSSFCell c2 = row.createCell(2);
HSSFCell c3 = row.createCell(3);
c0.setCellValue("編號");
c1.setCellValue("職位名稱");
c2.setCellValue("建立日期");
c3.setCellValue("是否可用");
HSSFCellStyle cellStyle = workbook.createCellStyle();
cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("m/d/yy"));
for (int i = 0; i < pos.size(); i++) {
Position position = pos.get(i);
HSSFRow r = sheet.createRow(i + 1);
HSSFCell cl0 = r.createCell(0);
HSSFCell cl1 = r.createCell(1);
HSSFCell cl2 = r.createCell(2);
HSSFCell cl3 = r.createCell(3);
cl0.setCellValue(position.getId());
cl1.setCellValue(position.getName());
cl2.setCellValue(position.getCreatedate());
cl2.setCellStyle(cellStyle);
cl3.setCellValue(position.getEnabled()?"是":"否");
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
workbook.write(baos);
HttpHeaders headers = new HttpHeaders();
headers.setContentDispositionFormData("attachment",new String("職位表.xls".getBytes("UTF-8"),"iso-8859-1"));
return new ResponseEntity<byte[]>(baos.toByteArray(),headers, HttpStatus.CREATED);
}