Question

我正在尝试使用改装2.0上传图片。

我关注了此guide，并使用了 uploadFile 功能。我从链接中下载了 FileUtilis.java ，就像获取文件格式Uri的代码一样。

private void uploadFile(Uri fileUri) {  
// create upload service client
FileUploadService service =
        ServiceGenerator.createService(FileUploadService.class);

// https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/afilechooser/utils/FileUtils.java
// use the FileUtils to get the actual file by uri
File file = FileUtils.getFile(this, fileUri);

// create RequestBody instance from file
RequestBody requestFile =
        RequestBody.create(MediaType.parse("multipart/form-data"), file);

// MultipartBody.Part is used to send also the actual file name
MultipartBody.Part body =
        MultipartBody.Part.createFormData("picture", file.getName(), requestFile);

// add another part within the multipart request
String descriptionString = "hello, this is description speaking";
RequestBody description =
        RequestBody.create(
                MediaType.parse("multipart/form-data"), descriptionString);

// finally, execute the request
Call<ResponseBody> call = service.upload(description, body);
call.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call,
                           Response<ResponseBody> response) {
        Log.v("Upload", "success");
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        Log.e("Upload error:", t.getMessage());
    }
});

}

当我执行程序时，该功能转到回调onResponse ，我可以从我的服务器读取正文的响应，但我上传的图像是空白的！

功能 uploadFile 传递的 fileUri 是来自相机/图库的图片，因此我有一个按钮imageProfile，当我按下按钮时，我启动了intent像这样

imageProfile.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent getIntent = new Intent(Intent.ACTION_GET_CONTENT);
            getIntent.setType("image/*");

            Intent pickIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            pickIntent.setType("image/*");

            Intent chooserIntent = Intent.createChooser(getIntent, getResources().getString(R.string.select_image_str));
            chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[]{pickIntent});

            startActivityForResult(chooserIntent, PICK_IMAGE);

        }
    });

在 onActivityResult 中，我把我的Uri置于变量 uriImageProfile 之内

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == PICK_IMAGE && resultCode == Activity.RESULT_OK) {
        if (data == null) {
            //Display an error
            return;
        }
        try {
            uriImageProfile = data.getData();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

    }
}

uploadFile方法在我的代码中被调用，并且类似但不是原始的。我有一个类 UserControllerApi ，其中我有与我的服务器的API相关联的所有方法，所以在创建之后我调用了mehod uploadPictureProfile

UserControllerApi userControllerApi = new UserControllerApi();
userControllerApi.uploadPictureProfile(idUser, uriImageProfile, this);

由于

问题上传空白图片使用Retrofit 2

0 个答案: