android - 使用 Retrofit 2 上传视频

Question

我想使用 Retrofit 2 上传视频文件，请帮我做这件事。

这是我的端点:

upload.php:

<?php
$uploaddir = '../uploads/';
$uploadfile = $_FILES['userfile']['name'];
$response = array();
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploaddir.$uploadfile)) 
{
    $response["result"] = "1";
    echo json_encode($response);
} else 
{
    $response["result"] = "-1";
    echo json_encode($response);
}
?>

---

我尝试在网络上遵循一个示例(将其与从库中选择的文件结合起来)，但它甚至没有编译(我用注释标记了错误行):

主 Activity :

public class MainActivity extends Activity 
{
    private static int RESULT_LOAD_VIDEO = 1;
    String decodableString;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Button btn_load = (Button) findViewById(R.id.buttonLoadVideo);
        btn_load.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
               loadVideoFromGallery(btn_load);
            }
        });
    }
    /*
     * PICK THE VIDEO AND EXTRACT ITS ADDRESS
     */
    public void loadVideoFromGallery(View view) 
    {
        Intent galleryIntent = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(galleryIntent, RESULT_LOAD_VIDEO);
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    {
        super.onActivityResult(requestCode, resultCode, data);
        try {
            // When a video is picked
            if (requestCode == RESULT_LOAD_VIDEO && resultCode == RESULT_OK
                    && null != data) 
            {
                // Get the video from data
                Uri selectedVideo = data.getData();
                String[] filePathColumn = { MediaStore.Video.Media.DATA };
                Cursor cursor = getContentResolver().query(selectedVideo,
                        filePathColumn, null, null, null);
                cursor.moveToFirst();
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                decodableString = cursor.getString(columnIndex);
                Log.i("mok",decodableString);
                cursor.close();
                upload(decodableString);
            } else 
            {
                Toast.makeText(this, "You haven't picked any video",
                        Toast.LENGTH_LONG).show();
            }
        } catch (Exception e) 
        {
            e.printStackTrace();
            Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG)
                        .show();
            }
        }

    /*
     * UPLOAD THE SELECTED VIDEO TO THE SRVER
     */

    public void upload(String decodableString)
    {
        final String BASE_URL = "http://192.168.1.7/";
        Retrofit retrofit = new Builder()
        .baseUrl(BASE_URL)
        .addConverterFactory(GsonConverterFactory.create())
        .build();

        UploadApiService service = retrofit.create(UploadApiService.class);
        MediaType MEDIA_TYPE = MediaType.parse("video/mp4");
        File file = new File("/storage/emulated/0/Pictures/MyApp/test.png");
        RequestBody requestBody = RequestBody.create(MEDIA_TYPE, file);
        Call<com.squareup.okhttp.ResponseBody> call = service.uploadVideo("desc", requestBody);
        call.enqueue(new Callback<ResponseBody>(){ //error even before compile***
            @Override
            public void onResponse(Response<ResponseBody> response, Retrofit retrofit) 
            {
                // TODO Auto-generated method stub
                if (response.isSuccess())
                {
                    Log.i("mok","S");
                    ResponseBody rb = response.body();
                    Log.i("mok",rb.getUsername());
                }
                else
                {
                    Log.i("mok","F");
                    com.squareup.okhttp.ResponseBody rb = response.errorBody();
                }
            }
            @Override
            public void onFailure(Throwable t) 
            {
                t.printStackTrace();
                Log.i("mok",t.getCause()+"");
                Log.i("mok","T");
                finish();
            }
        });
    }
}

UploadApiService:

public interface UploadApiService 
{
    @Multipart
    @POST("api/upload.php")
    Call<ResponseBody> uploadVideo(@Part("description") String description, @Part("video") RequestBody video);
}

我想我必须使用一种 Stream 来跟踪进度，但不幸的是我不知道更多。

Answer 1

确保您导入的内容是正确的。例如，Callback 应该是 retrofit.Callback;，而不是 import com.squareup.okhttp.Callback;。根据您的评论，听起来真正的问题是与本地定义的 ResponseBody 的类型冲突。