Java 实现从互联网/url获取文件、转换为base64字符串、获取文件名、获取文件类型

import sun.misc.base64Encoder; // 注意别导错包了

public void invokeAddCuApplyRepairBill(RepairRequest repairRequest) {
    RepairOrder repairOrder = new RepairOrder();
    List imageList = new ArrayList<>();
    repairOrder.setCustomerId(repairRequest.getCustomerId());
    repairOrder.setAdress(repairRequest.getUserAddress());
    repairOrder.setCustomerMobile(repairRequest.getUserPhone());
    repairOrder.setContent(repairRequest.getRepairRemark());
    String[] repairImgs = repairRequest.getRepairImgs();
    byte[] data = null;
    base64Encoder encoder = new base64Encoder();
    for (String img: repairImgs) {
        RepairImage repairImage = new RepairImage();
        String urlPath = img;
        try {
            // 统一资源
            URL url = new URL(urlPath);
            // 连接类的父类，抽象类
            URLConnection urlConnection = url.openConnection();
            // http的连接类
            HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;
            //设置超时
            httpURLConnection.setConnectTimeout(1000 * 5);
            //设置请求方式，默认是GET
            httpURLConnection.setRequestMethod("GET");
            // 设置字符编码
            httpURLConnection.setRequestProperty("Charset", "UTF-8");
            // 打开到此 URL引用的资源的通信链接（如果尚未建立这样的连接）。
            httpURLConnection.connect();
            // 建立链接从请求中获取数据
            BufferedInputStream bin = new BufferedInputStream(httpURLConnection.getInputStream());
            // 读取文件字节数组
            data = new byte[bin.available()];
            bin.read(data);
            bin.close();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        // 对字节数组base64编码
        String base64Data = encoder.encode(data);
        repairImage.setbase64Data(base64Data);
        String fileName = urlPath.substring(urlPath.lastIndexOf("/")+1);
        repairImage.setFileName(fileName);
        String fileType = urlPath.substring(urlPath.lastIndexOf("."));
        repairImage.setFileType(fileType);
        imageList.add(repairImage);
    }
    repairOrder.setRepairImageList(imageList);
    weidieService.addCuApplyRepairBill(repairOrder);
}