SpringBoot使用POI进行Excel下载

 org.apache.poi
 poi
 3.17

 /**
 * 获取下载模版
 */
 public void salaryTemplate(HttpServletResponse response)throws Exception{
 HSSFWorkbook workbook = new HSSFWorkbook();
 exportExcel(workbook);
 response.setHeader("Content-type","application/vnd.ms-excel");
 
 // 解决导出文件名中文乱码
 response.setCharacterEncoding("UTF-8");
 response.setHeader("Content-Disposition","attachment;filename="+new String("工资模版".getBytes("UTF-8"),"ISO-8859-1")+".xls");
 workbook.write(response.getOutputStream());
 }
 
 //导入为模版
 private void exportExcel(HSSFWorkbook workbook) throws Exception {
 //创建创建sheet
 HSSFSheet sheet = workbook.createSheet("工资");
 
 //创建单元格样式
 CellStyle cellStyle = workbook.createCellStyle();
 cellStyle.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
 
 //设置首行标题标题
 HSSFRow headerRow = sheet.createRow(0);
 headerRow.createCell(0).setCellStyle(cellStyle);
 headerRow.createCell(0).setCellValue("工号");
 headerRow.createCell(1).setCellStyle(cellStyle);
 headerRow.createCell(1).setCellValue("姓名");
 headerRow.createCell(2).setCellStyle(cellStyle);
 headerRow.createCell(2).setCellValue("年龄");
 
 //创建三行数据
 HSSFRow row;
 for (int i = 0; i <4; i++) {
 row = sheet.createRow(i + 1);
 row.createCell(0).setCellStyle(cellStyle);
 row.createCell(0).setCellValue(i);
 row.createCell(1).setCellStyle(cellStyle);
 row.createCell(1).setCellValue("张三");
 row.createCell(2).setCellStyle(cellStyle);
 row.createCell(2).setCellValue(19);
 }
 }

@GetMapping("/salary/template")
 public void salaryTemplate(HttpServletResponse response)throws Exception{
 salaryService.salaryTemplate(response);
 }