@RestController

public class ScheduleController {

@GetMapping("/download")

public ResponseEntity downloadSchedule() {

String content = "课程名称,时间,地点\n"

+ "数学,08:00-09:30,101教室\n"

+ "英语,10:00-11:30,202教室";

HttpHeaders headers = new HttpHeaders();

headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

headers.setContentDispositionFormData("attachment", "schedule.csv");

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

}

}