@GetMapping("/exportExcel")
public <T> ResponseEntity <InputStreamResource> exportData(@RequestBody List<T> data) {
    String fileName = data.getClass().getSimpleName();

    ByteArrayInputStream out = excelUtilsService.writeToExcel(data);
    HttpHeaders headers = new HttpHeaders();
    headers.add("Content-Disposition", "attachment; filename=" + fileName + ".xlsx");
    return ResponseEntity.ok().headers(headers).body(new InputStreamResource(out));
}

我得到这个错误：
illegalargumentexception无法为非类型化集合参数类型生成变量名。