Export local files (templates)

	/**
	 * 导出模板
	 */
	@GetMapping("export/template")
	@ApiOperationSupport(order = 16)
	@ApiOperation(value = "导出模板")
	public void exportTemplate(HttpServletResponse response) {
		List<JointExcel> list = new ArrayList<>();
		ClassPathResource classPathResource = new ClassPathResource("templates/Joint-import.xlsx");
		try {
			response.setContentType("application/vnd.ms-excel");
			String fileName = URLEncoder.encode("法兰节点模板", "UTF-8");
			response.setHeader("Content-disposition", "attachment;filename="+fileName+".xlsx");
			InputStream is = classPathResource.getInputStream();
			ExcelWriter excelWriter = EasyExcel.write(response.getOutputStream()).withTemplate(is).build();
			WriteSheet writeSheet = EasyExcel.writerSheet(0).head(JointExcel.class).build();
			excelWriter.write(list, writeSheet);
			excelWriter.finish();
		}catch (IOException e){
			e.printStackTrace();
		}
	}