java http下载到本地文件

@Api(tags = "文件")
@RestController
@RequestMapping("/file")
public class FileUpload {

    @GetMapping("/downloadFile")
    public void updateUploadStatus() throws IOException {
        String fileName = "index.html";//文件名带格式
        String filePath = "C:\\Users\\Administrator\\Desktop\\test\\";
        String utlFilepath = "https://bxwell.oss-cn-beijing.aliyuncs.com/userInfo/54b35024-1f90-4916-990d-cf29bea53d6c/index.html";
        URL url = new URL(utlFilepath);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod(con.getRequestMethod());
        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        con.setRequestProperty("User-Agent", "Mozilla/4.76");
        con.setRequestProperty("connection", "keep-alive");
        con.setDoOutput(true);
        BufferedInputStream out = new BufferedInputStream(con.getInputStream());
        File file = new File(filePath+fileName);
        file.createNewFile();
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath+fileName));
        try {
            int bytes = 0;
            byte[] bufferOut = new byte[1024];
            while ((bytes = out.read(bufferOut)) != -1) {
                bos.write(bufferOut, 0, bytes);
            }
        } catch (Exception e) {
            throw e;
        } finally {
            out.close();
            bos.close();
        }
    }
}