• 传入数组

@PostMapping("/delUsers")
public JSONResult delUsers(@RequestParam List<String> userIds) {
    int i = userMapper.deleteBatchIds(userIds);
    return new JSONResult(i);
}

• 传入数组

@PostMapping("/downloadUser")
@ResponseBody
public void downloadUser(HttpServletResponse response, @RequestBody List<String> list) {
    reture null;
}

• 传入文件

@PostMapping(value = "/importUser")
@ApiOperation(value = "批量导入", notes = "批量导入")
public JSONResult importUser(@RequestParam(value = "file") MultipartFile multiFile){
    return null
}