如何使用我的字符串参数将图像文件上传到服务器中使用Volley

Question

我正在尝试使用排球库上传图片，我不知道究竟是怎么回事。

我已经提到了之前提出的问题，但似乎没有什么能满足。

这是我需要实现的目标：

以下是我尝试使用的代码：

StringRequest stringRequest = new StringRequest(Request.Method.POST, URL,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {

                    Log.d("**********", " Response Received is  " + response);

                    try {

                        JSONObject jsonObject = new JSONObject(response);

                        Log.d("**********", "STRING TO JSON CONVERSION DONE , IT IS   " + jsonObject.toString());

                        ParseReqOtp parseReqOtp = new ParseReqOtp();
                        parseReqOtp.parseImageupload(jsonObject);


                    } catch (Exception e) {
                        Log.d("**********", "ERROR IN STRING TO JSON CONVERSION     " + e.toString());

                    }
                    Log.d("**********", "FETCHING IN VOLLEY REQ" + response);




                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Toast.makeText(AddPic.this, error.toString(), Toast.LENGTH_LONG).show();
                }
            }) {
        @Override
        protected HashMap<String,String> getParams() {

           HashMap<String, String> params = new HashMap<String, String>();
        params.put("id", BaseActivity.getBaseActivity().getEstablishment_id());
        params.put("type", "photos");
        params.put("example_file",file.toString());

        }


    };

Answer 1

private void uploadImageWithStringParamsToServer() {
    SimpleMultiPartRequest smr = new SimpleMultiPartRequest(Request.Method.POST, "http://139.59.16.103/addImage",
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                Log.d("Response", response);

                Toast.makeText(getApplicationContext(), response, Toast.LENGTH_LONG).show();

            }
        }, 
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
            }
    });

  smr.addStringParam("id", "821470");
  smr.addStringParam("type", "photos");
  smr.addFile("example_file", "2014-11-17 17.08.33-2.jpg");
  smr.setFixedStreamingMode(true);
  smr.setOnProgressListener(this);

  RequestQueue mRequestQueue = Volley.newRequestQueue(this);
  mRequestQueue.add(smr);
  mRequestQueue.start();
}