Flutter-使用具有dio包的Multipart / form-data上传图像，然后发送到.net REST API

Question

我已经使用下面的代码使用.net REST API在multipart / form-data中上传图像。在邮递员中使用时，我可以成功上传图像，但在抖动中，我不会得到异常输出。

 file = await ImagePicker.pickImage(source: ImageSource.camera);

    String fileName = file.path.split('/').last;

    var stream = new http.ByteStream(DelegatingStream.typed(file.openRead()));

    var length = await file.length();



    var uri = Uri.parse(phpEndPoint);



    var request = new http.MultipartRequest("POST", uri);

    var multipartFile = new http.MultipartFile('Uploading', stream, length,

        filename: basename(file.path));

    //contentType: new MediaType('image', 'png'));



    request.files.add(multipartFile);

    var response = await request.send().timeout(const Duration(seconds: 100));

    print(response.statusCode);

    response.stream.transform(utf8.decoder).listen((value) {

      print(value);

    });```



Actual Output:

{

“响应”：{

"Success": "False",

"message": "Image parsing failed"

}

}

Excepted Output:

{

“响应”：{

"Success": "true",

"message": "Image Uploading success"

}

}