如何使用齐射将PDF文件上传/发布到服务器

Question

我正在尝试在Android中使用凌空将PDF文件发布到服务器

选择PDF File Link onClick

Intent intent = new Intent();
            intent.setType("application/pdf");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Select PDF"), 1);

//使用截击发布数据类型代码

try {

                        jsonObject10.put("user_id", user_id);                          
                        jsonObject10.put("file_path", path);
                    } catch (JSONException e) {
                        Log.e("JSONObject Here", e.toString());
                    }

                    JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, add_url, jsonObject10, new Response.Listener<JSONObject>() {
                        @Override
                        public void onResponse(JSONObject jsonObject) {
                            Log.e("Message from server", jsonObject.toString());
                            progressDialog.dismiss();

                        }
                    }, new Response.ErrorListener() {
                        @Override
                        public void onErrorResponse(VolleyError volleyError) {
                            Log.e("Message from server", volleyError.toString());
                            progressDialog.dismiss();
                        }
                    });
                    jsonObjectRequest.setRetryPolicy(new DefaultRetryPolicy(5000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
                    Volley.newRequestQueue(getActivity()).add(jsonObjectRequest);