Retrofit多部分上传图片失败。

Question

我是一个有用的助手，可以为您翻译文本。

我正在尝试使用Retrofit库上传图片。这是我的上传方式：

请求代码：

@Multipart
@POST("/customerapp/{context}/{token}/passenger/passport/add/{passengerId}")
@Headers({
        "Accept: application/xml",
        "Accept-Encoding: gzip"
})
void UploadImage(
        @Path("context") String context,
        @Path("token") String token,
        @Path("passengerId") String passengerId,
        @Query("fileType") String fileType,
        @Query("imageCategory") int imageCategory,
        @Part("imageContent") TypedFile file,
        Callback<VJSuccessResponse> callback
);



public static final String BASE_URL = 
    "http://webservicetest.abc.com/extranetServices/1.1";

RequestInterceptor requestInterceptor = new RequestInterceptor() {
            @Override
            public void intercept(RequestFacade request) {
                Log.e("Retrofit Request Body", request.toString());
            }
        };

        RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint(BackendConstants.BASE_URL)
                .setClient(new OkClient(new OkHttpClient()))
                .setConverter(new SimpleXMLConverter())
                .setLogLevel(RestAdapter.LogLevel.FULL)
                .setRequestInterceptor(requestInterceptor)
                .build();

        REST_CLIENT = restAdapter.create(BackendAPI.class);

        REST_CLIENT.UploadImage(
                BackendConstants.CONTEXT,
                StateObject.sSPManager.getStoredPersonalDetails().getToken(),
                passengerId,
                new File(filePath),
                imageCategory,
                new TypedFile("image/jpeg", typeFile), new Callback<VJSuccessResponse>() {
                    @Override
                    public void success(VJSuccessResponse getCallResponse, Response response) {

                    }

                    @Override
                    public void failure(RetrofitError error) {


                        Log.d(TAG, error.toString());
                    }
                })

响应：

HTTP POST http://webservicetest.abc.com/extranetServices/1.1/customerapp/customerapp/cba75eb0d5d64e16b37cca477d68d836/passenger/passport/add/56672?fileType=jpg&imageCategory=1
Accept: application/xml
Accept-Encoding: gzip
Content-Type: multipart/form-data; boundary=fb1f78df-d674-4e54-9b41-32a386ca4222
Content-Length: 6038770
Content-Disposition: form-data; name="imageContent"; filename="userdp.jpg"
Content-Type: image/jpeg
Content-Length: 6038513

Content-Transfer-Encoding: binary
    ������JFIF����������������C������C�����,"��������������������������
    �����������}��!1AQa"q2���#B��R��$3br�
(That goes long String of garbage...)


<--- HTTP 200 http://webservicetest.abc.com/extranetServices/1.1/customerapp/customerapp/cba75eb0d5d64e16b37cca477d68d836/passenger/passport/add/56672?fileType=jpg&imageCategory=1 (109092ms)
Date: Thu, 05 Feb 2015 14:52:28 GMTServer: GlassFish Server Open Source Edition 3.1.2.2
X-Powered-By: Servlet/3.0 JSP/2.2 (GlassFish Server Open Source Edition 3.1.2.2 Java/Sun Microsystems Inc./1.6)
Content-Encoding: gzip
Content-Type: application/xml
Content-Length: 108
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
OkHttp-Selected-Protocol: http/1.1
OkHttp-Sent-Millis: 1423148584220
OkHttp-Received-Millis: 1423148693098
��������������������Q(K-*��ϳU2�3PRH�K�O��K�U
    qӵPR(.I�KI���K�U�L-V���)�
    J-.��+N��).MNN-.�+)*M�ч�l�������u��g������
<--- END HTTP (108-byte body)
retrofit.RetrofitError: org.xmlpull.v1.XmlPullParserException: Unexpected token (position:TEXT �������������������Q...@3:38 in java.io.InputStreamReader@26e1231a)

如果我通过客户端浏览器（例如Postman或DHC）发布，那么请求与上述相同，并且我会收到XML响应成功的消息。请参见我在Postman客户端的尝试截图。它是成功的。

- Omama

---

你的问题解决了吗？我也遇到了类似的问题。 - Kameswari

Answer 1

我也遇到了类似的问题，经过几个小时的尝试，最终成功实现了将图片上传到远程服务器的功能。
要上传图片，您需要正确创建API，并正确传递图片。在Retrofit客户端中，您需要按照以下方式设置图像：

String photoName = "20150219_222813.jpg";
File photo = new File(photoName );
TypedFile typedImage = new TypedFile("application/octet-stream", photo);

RetrofitClient.uploadImage(typedImage, new retrofit.Callback<Photo>() {

    @Override
    public void success(Photo photo, Response response) {
        Log.d("SUCCESS ", "SUCCESS RETURN " + response);
    }

    @Override
    public void failure(RetrofitError error) {

    }
});

API设置：

@Multipart
@POST("/")
void uploadImage(@Part("file") TypedFile file, Callback<Photo> callback);

远程服务器端的PHP代码用于处理图像：

$pic = 'uploaded_images/' . $imagename . '.jpg';
if (!move_uploaded_file($_FILES['file']['tmp_name'], $pic)) {
   echo "posted";
}

如果有帮助到任何人，请承认我。非常感谢。

- techhunter

---

你能否看一下我的尝试使用JSON数据发送图片的代码？ - JJD

在Android中，我的代码看起来和你的一样，但是当我上传1.5MB的图片时仍然会出现“超时”错误。你能帮我吗？ - R Besar

R Beasar，这是更多的服务器端问题。您需要在服务器PHP代码中增加图像大小。 - techhunter

Answer 2

对于Retrofit 2.0，这对我有用：

    @Multipart
    @Headers("Content-Type: application/json")
    @POST("api/accounts/{id}/portrait")
    Call<PortraitResponse> postPortrait(@Header("Authorization") String authorization, @Path("id") String id, @Part MultipartBody.Part file);


    public void postPortrait(Uri uri) {

        String auth = "Auth";
        String id = "someId";

        File file = new File(uri.getPath());

        // create RequestBody instance from file
        RequestBody requestFile = RequestBody.create(MediaType.parse("image/jpeg"), file);

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

        postPortraitCall = getAccountClient().postPortrait(auth, id, body);
        postPortraitCall.enqueue(new Callback<PortraitResponse>() {
            @Override
            public void onResponse(Call<PortraitResponse> call, Response<PortraitResponse> response) {
                if (response.isSuccessful()) {
                   // Success
                } else {
                   // Failed
                }
            }

            @Override
            public void onFailure(Call<PortraitResponse> call, Throwable t) {
               // Failed
            }
    });

}

- Tristan Richard