用retrofit2上传照片：翻新：2.0.0-beta4

Question

我有上传服务器上使用翻新图片的问题2.可以帮我吗？我做错了什么？我的后端开发具有伤心我在头中边界didnt产生=（ 这是我的接口：

import retrofit2.http.Headers; 
import retrofit2.http.POST; 
import retrofit2.http.Part; 
import retrofit2.Call; 
import retrofit2.http.Multipart; 
import okhttp3.MultipartBody; 
import com.google.gson.JsonElement; 

public interface Retrofitv2Api { 
    @Multipart 
    @Headers("Content-Type: multipart/form-data;") 
    @POST("/mobile/v1/classifieds/UploadImage") 
    Call<JsonElement> UploadImage(@Part MultipartBody.Part body,@Part("uniqId")String uniqId,@Part("token")String token);} 

建设者：

import retrofit2.Retrofit; 
import retrofit2.converter.gson.GsonConverterFactory; 

public class RetrofitV2Config { 
    private static Retrofit getRetrofit(){ 
    Retrofit retrofit = new Retrofit.Builder() 
      .baseUrl("http://api.qrz.ru") 
      .addConverterFactory(GsonConverterFactory.create()) 
      .build(); 
     return retrofit; 
    } 

    public static Retrofitv2Api getService(){ 
     return getRetrofit().create(Retrofitv2Api.class); 
    } 

，并上传片段：

String photoPath = photoAdapter.getPhotoPaths().get(0); 
       File image = new File(photoPath); 


       RequestBody imageBody = RequestBody.create(MediaType.parse("image/*"), image); 

       MultipartBody.Part body = MultipartBody.Part.createFormData("file", image.getName(), imageBody); 


       RetrofitV2Config.getService().UploadImage(body , "2536654", Token.getSavedToken()).enqueue(new Callback<JsonElement>() { 
        @Override 
        public void onResponse(Call<JsonElement> call, Response<JsonElement> response) { 
         Log.i(Logger.TAG, "onResponseUpload " + response.body() + " " + response.code()); 
        } 

        @Override 
        public void onFailure(Call<JsonElement> call, Throwable t) { 
         Log.i(Logger.TAG, "onFailureUpload"); 
        } 
       }); 

后端回复：

21:34:32.386117 IP 46.37.203.69.50461 > 62.181.46.35.http: Flags [P.], seq 1184070465:1184071311, ack 3418438796, win 65535, length 846 
E..v.o@.5....%.E>..#...PF.{A..<.P...]...POST /mobile/v1/classifieds/UploadImage HTTP/1.1 
Content-Type: multipart/form-data 
Content-Length: 647 
Host: api.qrz.ru 
Connection: Keep-Alive 
Accept-Encoding: gzip 
User-Agent: okhttp/3.2.0 

--950f42dd-12a1-4e11-a3b0-826ddaf41aa3 
Content-Disposition: form-data; name="img" 
Content-Transfer-Encoding: binary 
Content-Type: application/json; charset=UTF-8 
Content-Length: 2 

{} 
--950f42dd-12a1-4e11-a3b0-826ddaf41aa3 
Content-Disposition: form-data; name="uniqId" 
Content-Transfer-Encoding: binary 
Content-Type: application/json; charset=UTF-8 
Content-Length: 8 

"215132" 
--950f42dd-12a1-4e11-a3b0-826ddaf41aa3 
Content-Disposition: form-data; name="token" 
Content-Transfer-Encoding: binary 
Content-Type: application/json; charset=UTF-8 
Content-Length: 22 

Answer 1

谢谢大家！我发现solution.In我来说，我应该在接口Retrofitv2Api使用MultipartBody.Part而不是字符串

public interface Retrofitv2Api { 
@Multipart 
@POST("/mobile/v1/classifieds/UploadImage") 
Call<UploadPhoto> UploadImage(@Part MultipartBody.Part body,@Part MultipartBody.Part uniqId,@Part MultipartBody.Part token);} 

File image = new File(path); 

     RequestBody imageBody = RequestBody.create(MediaType.parse("image/jpeg"), image); 

     MultipartBody.Part body = MultipartBody.Part.createFormData("img", image.getName(), imageBody); 
     MultipartBody.Part uniqID = MultipartBody.Part.createFormData("uniqId", uniqId); 
     MultipartBody.Part token = MultipartBody.Part.createFormData("token", Token.getSavedToken()); 

     Call<UploadPhoto> call = RetrofitV2Config.getService().UploadImage(body, uniqID, token); 
     call.enqueue(new Callback<UploadPhoto>() { 
      @Override 
      public void onResponse(Call<UploadPhoto> call, 
            Response<UploadPhoto> response) { 
       Log.v("Upload", "success: " + response.raw().toString()); 

      } 

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

      } 
     }); 

Answer 2

尝试使用TypedFile代替MultipartBody，这样的事情：

String photoPath = photoAdapter.getPhotoPaths().get(0); 
    try { 
     File image = new File(getApplicationContext().getFilesDir().getPath().toString(), "YourFileName"); 

     // Decode with inSampleSize 
     BitmapFactory.Options bitmapOptions = new BitmapFactory.Options(); 
     bitmapOptions.inSampleSize = calculateInSampleSize(bitmapOptions, 1080, 1080); 
     bitmapOptions.inJustDecodeBounds = false; 

     Bitmap bitmap = BitmapFactory.decodeFile(photoPath, bitmapOptions); 

      ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
      bitmap.compress(Bitmap.CompressFormat.JPEG, 50, bos); 
      byte[] bitmapdata = bos.toByteArray(); 

      //write the bytes in file 
      FileOutputStream fos = new FileOutputStream(image); 
      fos.write(bitmapdata); 
      fos.flush(); 
      fos.close(); 

       // yourImageType means for example .png .jpg etc. 
       TypedFile typedFile = new TypedFile("image/yourImageType", image); 

     } catch (IOException e) { 
     } catch (OutOfMemoryError outOfMemoryError) { 
     } 


    RetrofitV2Config.getService().UploadImage(typedFile , "2536654", Token.getSavedToken()).enqueue(new Callback<JsonElement>() { 
     @Override 
     public void onResponse(Call<JsonElement> call, Response<JsonElement> response) { 
      Log.i(Logger.TAG, "onResponseUpload " + response.body() + " " + response.code()); 
     } 

     @Override 
     public void onFailure(Call<JsonElement> call, Throwable t) { 
      Log.i(Logger.TAG, "onFailureUpload"); 
     } 
    }); 

，改变你的接口：

@Multipart 
    @Headers("Content-Type: multipart/form-data;") 
    @POST("/mobile/v1/classifieds/UploadImage") 
    Call<JsonElement> UploadImage(@Part("file") TypedFile file,@Part("uniqId")String uniqId,@Part("token")String token);} 

Answer 3

public interface UploadAvatarService { 
    @Multipart 
    @POST("user/upload_head") 
    Observable<UploadAvatarBean> upload(@Part("file\"; filename=\"image.png\"") RequestBody avatarFile); 
} 

的Part将在改造代码为

Headers headers = 
       Headers.of("Content-Disposition", "form-data; name=\"" + partName + "\"", 
        "Content-Transfer-Encoding", part.encoding()); 

你需要将文件名设置为文件。

Answer 4

您应该使用RequestBody而不是字符串

public interface Retrofitv2Api { 
@Multipart 
@Headers("Content-Type: multipart/form-data;") 
@POST("/mobile/v1/classifieds/UploadImage") 
Call<JsonElement> UploadImage(@Part MultipartBody.Part body,@Part("uniqId")RequestBody uniqId,@Part("token") RequestBody token); 
} 


private void UploadImage(File file,String uniqId,String token) { 
// create upload service client 
Retrofitv2Api service = 
     new RetrofitV2Config().getService(); 

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("file", file.getName(), requestFile); 


// finally, execute the request 
Call<ResponseBody> call = service.upload(body,RequestBody.create(
       MediaType.parse("multipart/form-data"), uniqId),RequestBody.create(
       MediaType.parse("multipart/form-data"), token)); 
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()); 
    } 
}); 

}