Question

长话短说我遇到这种问题，我试图向我的服务器发送凌空请求，该服务器以json数组响应：

{
    "images": [{
        "product_serial_num": "1",
        "product_title": "Abbadon",
        "product_img": "http://1.2.3.4/android/uploads/1.jpg",
        "product_price": "750",
        "product_description": "The destroyer"
    }]
}

但无论我尝试了什么，我仍然会得到Volley的反应错误，我的截击请求：

  requestQueue = Volley.newRequestQueue(getActivity());
    //JsonArrayRequest of volley
    JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(MY_URL ,
            new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {
                     //parseData to parse the json response
                    parseData(response);
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                    //If an error occurs that means end of the list has reached
                    Toast.makeText(getActivity(), "No More Items Available", Toast.LENGTH_SHORT).show();
                }
            });

    requestQueue.add(jsonArrayRequest);

奇怪的是，对于排球请求它确实有效，只有数组会让我感到困惑。

编辑：

这样我怎样才能使用feed获取我的数组：

private void getData() {
    //Adding the method to the queue by calling the method getDataFromServer
    requestQueue.add(getDataFromServer(requestCount));
    //Incrementing the request counter
    requestCount++;
}

//Request to get json from server we are passing an integer here
//This integer will used to specify the page number for the request ?page = requestcount
//This method would return a JsonArrayRequest that will be added to the request queue
private JsonArrayRequest getDataFromServer(int requestCount) {

    //JsonArrayRequest of volley
    JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(URL_INDEX + String.valueOf(requestCount),
            new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {
                    //Calling method parseData to parse the json response
                    parseData(response);
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                    //If an error occurs that means end of the list has reached
                    Toast.makeText(getActivity(), "No More Items Available", Toast.LENGTH_SHORT).show();
                }
            });

    //Returning the request
    return jsonArrayRequest;
}

谢谢！

Answer 1

使用此代码，将 JsonArrayRequest 更改为 JsonObjectRequest

JsonObjectRequest jsonArrayRequest = new JsonObjectRequest(Request.Method.GET, MY_URL, null,
        new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                //parseData to parse the json response
                parseData(response);
            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {

                //If an error occurs that means end of the list has reached
                Toast.makeText(getActivity(), "No More Items Available", Toast.LENGTH_SHORT).show();
            }
        });

数组响应

"images": [{
    "product_serial_num": "1",
    "product_title": "Abbadon",
    "product_img": "http://1.2.3.4/android/uploads/1.jpg",
    "product_price": "750",
    "product_description": "The destroyer"
}]

对象响应

{
"images": [{
    "product_serial_num": "1",
    "product_title": "Abbadon",
    "product_img": "http://1.2.3.4/android/uploads/1.jpg",
    "product_price": "750",
    "product_description": "The destroyer"
}]
}

没有来自jsonArray请求的响应

1 个答案: