Android okHttp上传单张或多张照片

private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");

private final OkHttpClient client = new OkHttpClient();

private void uploadImg() {        // mImgUrls为存放图片的url集合        MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);        for (int i = 0; i <mImgUrls.size() ; i++) {            File f=new File(mImgUrls.get(i));            if (f!=null) {                builder.addFormDataPart("img", f.getName(), RequestBody.create(MEDIA_TYPE_PNG, f));            }        }

           //添加其它信息//        builder.addFormDataPart("time",takePicTime);//        builder.addFormDataPart("mapX", SharedInfoUtils.getLongitude());//        builder.addFormDataPart("mapY",SharedInfoUtils.getLatitude());//        builder.addFormDataPart("name",SharedInfoUtils.getUserName());        MultipartBody requestBody = builder.build();        //构建请求        Request request = new Request.Builder()                .url(Constant.BASE_URL)//地址                .post(requestBody)//添加请求体                .build();        client.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                                System.out.println("上传失败:e.getLocalizedMessage() = " + e.getLocalizedMessage());            }            @Override            public void onResponse(Call call, Response response) throws IOException {                                System.out.println("上传照片成功：response = " + response.body().string());                ToastCustom.makeText(PictureListActivity.this, "上传成功", Toast.LENGTH_LONG).show();                          }        });    }

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