java - 使用 volley 从 php 页面发送和接收

Question

我打算向php页面发送一个参数，在进行了一系列json格式的参数处理后，我得到了相同的页面。我编写了以下代码:

//Showing the progress dialog
final ProgressDialog loading = ProgressDialog.show(this,"در حال ارتباط با سرور","لطفا صبر کنید",false,false);
final JsonArrayRequest jsonArrReq = new JsonArrayRequest(GetFavTickets_url,
    new Response.Listener<JSONArray>() {
        @Override
        public void onResponse(JSONArray jsonArray) {
            //   Log.e("LOG", jsonArray.toString());
            for (int i = 0 ; i < jsonArray.length() ; i++)
            {
                try {
                    JSONObject jsonObject = jsonArray.getJSONObject(i);
                    Log.e("LOG", "object : " + jsonObject.getString("name"));
                    name.add(i,jsonObject.getString("name"));
                    family.add(i,jsonObject.getString("family"));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            loading.dismiss();
        }
    },
    new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError volleyError) {
            //Dismissing the progress dialog
            loading.dismiss();

            //Showing toast
            Toast.makeText(Favorite.this, volleyError.getMessage().toString(), Toast.LENGTH_LONG).show();
            Log.e("Volley",volleyError.getMessage().toString());
        }
    }){
        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            //Converting Bitmap to String

            //Creating parameters
            Map<String,String> params = new Hashtable<String, String>();

            //Adding parameters
            params.put("id", id);

            //returning parameters
            return params;
        }
    };

    //Creating a Request Queue
    RequestQueue requestQueue = Volley.newRequestQueue(this);

    //Adding request to the queue
    requestQueue.add(jsonArrReq);
}

Volley 给出了以下消息:

org.json.JSONException: Value Error of type java.lang.String cannot be converted to JSONArray

Answer 1

尝试替换这个

 final JsonArrayRequest jsonArrReq = new JsonArrayRequest(GetFavTickets_url, new Response.Listener()

与

StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
            new Response.Listener<String>() ...