java - 图像文件无法使用改造 2 后方法发送到服务器

Question

嗨， friend 们，请帮助我，我是改造的新手，我正在尝试使用改造中的 post 方法，通过将其转换为 base64 格式来发送图像文件，但它没有上传，请 friend 们帮助我，这是我的代码

改造代码

    Retrofit registerretrofit = new Retrofit.Builder().baseUrl(Constant.url).client(Constant.okClient()).addConverterFactory(GsonConverterFactory.create()).build();
            Api registerapi = registerretrofit.create(Api.class);
            String urlbitmap=Constant.getStringImage(profilebitmap);
            Call<LoginResponse> registerresponse = registerapi.getregisterdetails(namestring, emailstring, passwordstring, phonestring, citystring, landnumstring, housenumstring, adrsstring1, adrssrtring2,urlbitmap, "Android", "DeviceToken", lat, lngitude);
            registerresponse.enqueue(new Callback<LoginResponse>() {
                @Override
                public void onResponse(Call<LoginResponse> call, Response<LoginResponse> response) {
//                    Constant.l(Constant.getStringImage(profilebitmap));
                    try {
                        Constant.l(String.valueOf(response));
                    } catch (Exception e) {
                        Constant.l(e.toString());
                    }
                    /*Constant.l(String.valueOf(response));
                    if (response.body().getStatus().equals("success")) {
                        Session.createlogin(getApplicationContext(), response.body().getUserid(), response.body().getName(), response.body().getEmail());
                        Intent loginintent = new Intent(getApplicationContext(), Login.class);
                        loginintent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(loginintent);
                    } else if (response.body().getStatus().equals("failure")) {
                        Constant.s(username, "Email Already Exists");
                    }*/

                }

                @Override
                public void onFailure(Call<LoginResponse> call, Throwable t) {
                    Constant.l(t.toString());
                }
            });
        }

接口(interface).java

@FormUrlEncoded
    @POST("keemajson.php?action=register")
    Call<LoginResponse> getregisterdetails(@Query("uname") String uname, @Query("email") String email, @Query("password") String password, @Query("phone") String phone, @Query("city") String city, @Query("landline") String landline, @Query("building_num") String building_num, @Query("address1") String address1, @Query("address2") String address2, @Field("image") String image, @Query("device_name") String device_name, @Query("device_token") String device_token, @Query("lat") String lat, @Query("lng") String lng);

Base64方法

ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
        byte[] imagebytes = baos.toByteArray();
        String uploadencodedImage = Base64.encodeToString(imagebytes, Base64.DEFAULT);

我得到的回复是

Response{protocol=http/1.0, code=500, message=Internal Server Error, url=http://54.202.3.127/keema/keemajson.php?action=register&uname=test2&email=tester2@gmail.com&password=123456&phone=1234567890&city=KKD&landline=0884237688&building_num=12-2-18&address1=Address1&address2=Address2&device_name=Android&device_token=DeviceToken&lat=16.9952685&lng=82.2450855}

我使用过的多部分代码

Retrofit registerretrofit = new Retrofit.Builder().baseUrl("http://54.202.3.127/keema/").client(Constant.okClient()).addConverterFactory(GsonConverterFactory.create()).build();
            Api registerapi = registerretrofit.create(Api.class);
            File profilefile = new File("/storage/emulated/0/Pictures/Screenshots/Screenshot_2017-02-22-14-10-53.png");
            RequestBody reqfile = RequestBody.create(MediaType.parse("image/*"), profilefile);
            RequestBody actionrb = RequestBody.create(MediaType.parse("text/plain"), "register");
            MultipartBody.Part body = MultipartBody.Part.createFormData("image", profilefile.getName(), reqfile);
            RequestBody namerb = RequestBody.create(MediaType.parse("text/plain"), namestring);
            RequestBody emailrb = RequestBody.create(MediaType.parse("text/plain"), emailstring);
            RequestBody passwordrb = RequestBody.create(MediaType.parse("text/plain"), passwordstring);
            RequestBody phonerb = RequestBody.create(MediaType.parse("text/plain"), phonestring);
            RequestBody cityrb = RequestBody.create(MediaType.parse("text/plain"), citystring);
            RequestBody adrssrb = RequestBody.create(MediaType.parse("text/plain"), adrsstring1);
            RequestBody adrssrrb = RequestBody.create(MediaType.parse("text/plain"), adrssrtring2);
            RequestBody landnumrb = RequestBody.create(MediaType.parse("text/plain"), landnumstring);
            RequestBody housenumrb = RequestBody.create(MediaType.parse("text/plain"), housenumstring);
            RequestBody devicenamerb = RequestBody.create(MediaType.parse("text/plain"), "Android");
            RequestBody devicetokenrb = RequestBody.create(MediaType.parse("text/plain"), "Devicetoken");
            RequestBody latrb = RequestBody.create(MediaType.parse("text/plain"), lat);
            RequestBody lngrb = RequestBody.create(MediaType.parse("text/plain"), lngitude);
            Call<ResponseBody> respbody = registerapi.getregisterdetails(actionrb,body, namerb, emailrb, passwordrb, phonerb, cityrb, adrssrb, adrssrrb, landnumrb, housenumrb, devicenamerb, devicetokenrb, latrb, lngrb);
            respbody.enqueue(new Callback<ResponseBody>() {
                @Override
                public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                    Constant.l(String.valueOf(response));
                }

                @Override
                public void onFailure(Call<ResponseBody> call, Throwable t) {
                    Constant.l(t.toString());
                }
            });
        }

多部分接口(interface)

@Multipart
      @POST("keemajson.php")
        Call<ResponseBody> getregisterdetails(@Part("action") RequestBody action,@Part MultipartBody.Part image,@Part("uname") RequestBody uname, @Part("email") RequestBody email, @Part("password") RequestBody password, @Part("phone") RequestBody phone, @Part("city") RequestBody city, @Part("landline") RequestBody landline, @Part("building_num") RequestBody building_num, @Part("address1") RequestBody address1, @Part("address2") RequestBody address2, @Part("device_name") RequestBody device_name, @Part("device_token") RequestBody device_token, @Part("lat") RequestBody lat, @Part("lng") RequestBody lng);

Answer 1

为了 POST 文件，我们需要启用 Multipart。Part 在 Multipart 中定义一个部分。 MultipartBody.Part 是我们要用于文件/图像的类型。非文件部分应使用带有预期字段名的 RequestBody 类型

服务/端点接口(interface)

interface Service {
    @Multipart
    @POST("/")
    Call<ResponseBody> postImage(@Part MultipartBody.Part image, @Part("name") RequestBody name);
}

改造调用，postImage参数

File file = new File(filePath);

RequestBody reqFile = RequestBody.create(MediaType.parse("image/*"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("upload", file.getName(), reqFile);
RequestBody name = RequestBody.create(MediaType.parse("text/plain"), "upload_test");

retrofit2.Call<okhttp3.ResponseBody> req = service.postImage(body, name);
req.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) { 
        // Do Something
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        t.printStackTrace();
    }
});

浏览this githib example 了解更多详情

编辑

参数和图像如下

@Multipart
@POST("users/{id}/user_photos")
Call<models.UploadResponse> postImage(@Path("id") int userId, @PartMap Map<String, RequestBody> params);

请求参数

//All the String parameters
Map<String, RequestBody> map = new HashMap<>();
map.put("methodName", toRequestBody(methodName));
map.put("userid", toRequestBody(userId));
map.put("name", toRequestBody(name));

//To put your image file as well
File file = new File("file_name");
RequestBody fileBody = RequestBody.create(MediaType.parse("image/png"), file);
map.put("relative_image\"; filename=\"some_file_name.png\"", fileBody);

// This method  converts String to RequestBody
public static RequestBody toRequestBody (String value) {
    RequestBody body = RequestBody.create(MediaType.parse("text/plain"), value);
    return body ;
}

//To send your request
call = service.postImage(body, params);