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// 后端接口：生成PPT文件

@PostMapping("/generatePPT")

public ResponseEntity generatePPT(@RequestBody PresentationData data) throws IOException {

XSSFWorkbook workbook = new XSSFWorkbook();

XSSFSheet sheet = workbook.createSheet("Presentation");

Row row = sheet.createRow(0);

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Cell cell = row.createCell(0);

cell.setCellValue(data.getTitle());

ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

workbook.write(outputStream);

byte[] bytes = outputStream.toByteArray();

return ResponseEntity.ok()

.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=presentation.pptx")

.contentType(MediaType.APPLICATION_OCTET_STREAM)

.body(bytes);

}

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