controller层
```java
/*
* 下载图片-->创建文件夹
* @param params
* @return
* @throws Exception
/
@PostMapping("/handerImageDownload")
public AjaxResult handerImageDownload(@RequestParam Map params,HttpServletResponse response) {
try {
Date date = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
String dateString = formatter.format(date);
String airlineName = params.get("airlineName");
String fileUrl = "D:/DJI_"+dateString+airlineName;
listFiles("sne","D:\DJI_"+dateString+airlineName+"\");
String fileName = "D:\offline.zip";
OutputStream fos2 = response.getOutputStream();