Android 如何将 pdf 文件写入 byteArrayBody 以将其发送到服务器

Question

我使用以下代码 fragment 进行图像发送。以及发送DOC、mp4文件等应该怎么做。

         MultipartEntityBuilder multipartEntity;

        String URL = "My server url";

        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
         Bitmap   bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
            bitmap.compress(CompressFormat.JPEG, 75, byteArrayOutputStream); 
            byte[] byteData = byteArrayOutputStream.toByteArray();

            //String strData = Base64.encodeToString(data, Base64.DEFAULT); // I have no idea why Im doing this
            ByteArrayBody byteArrayBody = new ByteArrayBody(byteData, "image"); // second parameter is the name of the image (//TODO HOW DO I MAKE IT USE THE IMAGE FILENAME?)

            // send the package
            multipartEntity = MultipartEntityBuilder.create();
            multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
            multipartEntity.addPart("image", byteArrayBody);


            webclient.getResponceFromWebService(URL, multipartEntity);

Answer 1

虽然只有两行代码就可以实现你想要做的事情，但你提到的上面的代码对于图像来说是完美的

    File f = new File("YOUR FILE PATH GOES HERE");
    byte[] data = FileUtils.readFileToByteArray(f);

这是你的代码在文件路径的任何地方调整上面提到的这两行代码

    MultipartEntityBuilder multipartEntity;

    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
            R.drawable.amd);
    bitmap.compress(CompressFormat.JPEG, 75, byteArrayOutputStream);
    byte[] byteData = byteArrayOutputStream.toByteArray();


    ByteArrayBody byteArrayBody = new ByteArrayBody(byteData, "image");

    // send the package
    multipartEntity = MultipartEntityBuilder.create();
    multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
    multipartEntity.addPart("image", byteArrayBody);