问题描述
我正在使用Retrofit v.2.2.0将图片上传到我的服务器，但是服务器返回一个空值，表明尚未上传任何图片.日志显示图像已上传，并且上传时文件名正确.可能是什么问题，但是它在邮递员中有效?
I'm using Retrofit v.2.2.0 to upload a picture to my server but the server returns a null value stating no image has been uploaded. The logs shows the image is uploaded and the file name is correct when uploaded. What can be the problem yet it works in postman?
UploadProfilePicture.java
public class UploadProfilePicture extends ContextWrapper {
private GetOnUpload onUpload;
private File imageFile,filesDir,file;
private Uri fileUri;
private String profilePic = "profile_pic";
private String fileName;
private ParcelFileDescriptor parcelFileDescriptor;
private FileDescriptor fileDescriptor;
private Bitmap profileImage;
private OutputStream os;
private OkHttpLogClientAPI okHttpLogClientAPI;
private GetOnUpload mInterfaceService;
public UploadProfilePicture(Context base) {
super(base);
okHttpLogClientAPI = new OkHttpLogClientAPI(getBaseContext());
mInterfaceService = okHttpLogClientAPI.logger().create(GetOnUpload.class);
}
public void uploadPic(Uri fileUri,String fileName, final OnSetUploadProfilePic setOnUpload) {
//Build Req estBodies for the map object and a MultipartBody.Part to encapsulate the prof_pic_drawer
this.fileUri = fileUri;
this.fileName = fileName;
try {
getBitmapFromUri();
} catch (IOException e) {
e.printStackTrace();
}
file = persistImage();
RequestBody finalRequestBody = builder.build();
RequestBody requestFile =
RequestBody.create(MediaType.parse("multipart/form-data"), getBytesFromBitmap(profileImage));
// MultipartBody.Part is used to send also the actual file name
MultipartBody.Part body =
MultipartBody.Part.createFormData("file", "avatar.jpg", requestFile);
Call<ResponseUserModel> call = mInterfaceService.upload(body);
call.enqueue(new Callback<ResponseUserModel>() {
@Override
public void onResponse(Call<Response> call, Response<Response> response) {
if (response.isSuccessful()) {
setOnUpload.uploadMessage(response.body());
} else {
Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();
}
}
@Override
public void onFailure(Call<Response> call, Throwable t) {
Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();
}
});
}
}
public static byte[] getBytesFromBitmap(Bitmap bitmap) {
if (bitmap!=null) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 70, stream);
return stream.toByteArray();
}
return null;
}
private MultipartBody.Part prepareFilePart() {
//TODO: Use FileUtils to get the actual file by uri
try {
getBitmapFromUri();
file = persistImage();
} catch (IOException e) {
e.printStackTrace();
}
try {
RequestBody requestFile = RequestBody.create(
MediaType.parse(getBaseContext().getContentResolver().getType(fileUri)), file);
return MultipartBody.Part.createFormData("file", file.getName(), requestFile);
} catch (NullPointerException e) {
Toast.makeText(getBaseContext(), "" + e.getMessage(), Toast.LENGTH_SHORT).show();
return null;
}
}
private RequestBody createPartFromString(String descriptionString) {
return RequestBody.create(MultipartBody.FORM, descriptionString);
}
private void getBitmapFromUri() throws IOException {
profileImage = MediaStore.Images.Media.getBitmap(this.getContentResolver(), fileUri);
}
private File persistImage() {
filesDir = getFilesDir();
imageFile = new File(filesDir, fileName + ".jpg");
OutputStream os;
try {
os = new FileOutputStream(imageFile);
profileImage.compress(Bitmap.CompressFormat.JPEG, 70, os);
os.flush();
os.close();
} catch (Exception e) {
Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
}
return imageFile;
}}
GetOnUpload.java
public interface GetOnUpload {
@Multipart
@POST(Constants.UPLOAD_URL)
Call<Response> upload(@Part MultipartBody.Part file);}
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http://local.com/api/v1/avatar http/1.111-14 18:40:02.742 8851-9593/com.local.test D/OkHttp:Content-Type:multipart/form-data;边界= d43da080-f2c3-4743-8cfd-9526cc0bd2f711-14 18:40:02.742 8851-9593/com.local.test D/OkHttp:内容长度:1242411-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:--d43da080-f2c3-4743-8cfd-9526cc0bd2f711-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:Content-Disposition:表单数据; name =文件"; filename ="avatar.jpg"11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:Content-Type:multipart/form-data11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:内容长度:1220111-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp:--d43da080-f2c3-4743-8cfd-9526cc0bd2f7--11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp:-> END POST(12424字节的正文)
http://local.com/api/v1/avatar http/1.111-14 18:40:02.742 8851-9593/com.local.test D/OkHttp: Content-Type: multipart/form-data; boundary=d43da080-f2c3-4743-8cfd-9526cc0bd2f711-14 18:40:02.742 8851-9593/com.local.test D/OkHttp: Content-Length: 1242411-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: --d43da080-f2c3-4743-8cfd-9526cc0bd2f711-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Disposition: form-data; name="file"; filename="avatar.jpg"11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Type: multipart/form-data11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Length: 1220111-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp: --d43da080-f2c3-4743-8cfd-9526cc0bd2f7--11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp: --> END POST (12424-byte body)
11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:<-200 OK http://local.com/api/v1/avatar (587毫秒)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:服务器:nginx/1.10.3(Ubuntu)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:内容类型:application/json11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:传输编码:分块11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:连接:保持活动状态11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:缓存控制:无缓存，私有11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:日期:2017年11月14日星期二15:40:03 GMT11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:X-RateLimit-Limit:6011-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:X-RateLimit-剩余:5911-14 18:40:03.333 8851-9593/com.local.test D/OkHttp:{用户":失败"，状态":图片文件未上传"}
11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: <-- 200 OK http://local.com/api/v1/avatar (587ms)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Server: nginx/1.10.3 (Ubuntu)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Content-Type: application/json11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Transfer-Encoding: chunked11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Connection: keep-alive11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Cache-Control: no-cache, private11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Date: Tue, 14 Nov 2017 15:40:03 GMT11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: X-RateLimit-Limit: 6011-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: X-RateLimit-Remaining: 5911-14 18:40:03.333 8851-9593/com.local.test D/OkHttp: {"user":"Failed","status":"Image file not uploaded"}
推荐答案
此示例对我有用
//My data manager
public void doUpload(
Context context,
String url) {
Uri uri = Uri.parse(url);
File file = new File(getPath(context, uri));
RequestBody reqFile = RequestBody.create(MediaType.parse("image/*"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("imageParameterName", file.getName(), reqFile);
uploadService(body)
}
//REST service
@Multipart
@POST("upload.aspx")
Call<DefaultDTO> uploadService(@Part MultipartBody.Part image);
这篇关于改造上传图片的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！