统一消息系统

@RestController

public class MessageController {

@PostMapping("/send")

public String sendMessage(@RequestBody Map message) {

// 模拟消息发送逻辑

System.out.println("消息内容: " + message.get("content"));

return "消息已发送";

}

@GetMapping("/generate-doc")

public ResponseEntity generateDocument() {

// 使用Apache POI生成Word文档

try (Workbook workbook = new XSSFWorkbook()) {

Sheet sheet = workbook.createSheet("文档");

Row row = sheet.createRow(0);

Cell cell = row.createCell(0);

cell.setCellValue("这是一个生成的文档");

ByteArrayOutputStream out = new ByteArrayOutputStream();

workbook.write(out);

byte[] docBytes = out.toByteArray();

HttpHeaders headers = new HttpHeaders();

headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

headers.setContentDispositionFormData("attachment", "document.docx");

return new ResponseEntity<>(docBytes, headers, HttpStatus.OK);

} catch (Exception e) {

return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);

}

}

}