java通过图片URL下载图片

public InputStream getInputStream(String imgUrl) {
        InputStream inputStream = null;
        try{
            HttpURLConnection httpURLConnection = (HttpURLConnection) new URL(imgUrl).openConnection();
            httpURLConnection.setRequestMethod("GET");
            httpURLConnection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36");
            httpURLConnection.setRequestProperty("Accept-Encoding", "gzip");
            httpURLConnection.setRequestProperty("Referer","no-referrer");
            httpURLConnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
            httpURLConnection.setConnectTimeout(15000);
            httpURLConnection.setReadTimeout(20000);
            inputStream = httpURLConnection.getInputStream();
        }catch (IOException e){
            e.printStackTrace();
        }
        return inputStream;
    }

public boolean downloadImg(InputStream inputStream,String path){
        boolean flag = true;
        File file = new File(path);
        if (file.exists()){
            return flag;
        }
        File fileParent = file.getParentFile();
        if (!fileParent.exists()){
            fileParent.mkdirs();//创建路径
        }
        try {
            FileUtils.copyToFile(inputStream,file);
        }catch (Exception e) {
            e.printStackTrace();
            flag = false;
        }
        return flag;
    }

<dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.6</version>
</dependency>