Question

我知道几乎没有类似的线程，但是它们都没有真正的帮助。我正在尝试将PHP foreach循环解析为Json，然后解析为Android。有一个URL地址列表，可以在其中下载apk文件，这就是我正在浏览的内容。这是我每次运行程序时都会遇到的错误。

Error :- org.json.JSONException: Value ["xxxx.apk"] of type org.json.JSONArray cannot be converted to JSONObject

PHP代码：

$fileList = glob('xxxx/xxx/appstore_php/*');
   foreach($fileList as $filename)
   {
      if ( is_file ( $filename ) )
      {
         $bname = basename ( $filename);
         $b = array($bname);    
         echo json_encode($b);
      }
   }

输出：-[“ xxxx.apk”] [“ xxy.apk”]
Android代码：

  private void getAppData(){
        //Creating a string request
        StringRequest stringRequest = new StringRequest(URLAddress.SHOW_ALL_APK,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    JSONObject j = null;
                    try {
                        //Parsing the fetched Json String to JSON Object
                        j = new JSONObject(response);

                        //Storing the Array of JSON String to our JSON Array
                        result = j.getJSONArray(URLAddress.JSON_ARRAY);

                        getApps(result);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                }
            });

        //Creating a request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);

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

    private void getApps(JSONArray j){
        //Traversing through all the items in the json array
        for(int i=0;i<j.length();i++){
            try {
                //Getting json object
                JSONObject json = j.getJSONObject(i);
                appList.add( json.toString() );

            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }

Answer 1

表单聊天讨论，回复返回为{"files": ["xxxx.apk","xxy.apk"]}格式

   $fileList = glob('xxxx/xxx/appstore_php/*');
   $files = [];
   foreach($fileList as $filename)
   {
      if ( is_file ( $filename ) )
      {
         $bname = basename ( $filename);
         $files[] = $bname;  
      }
   }

   header('Content-Type: application/json');
   $response = ["files" => $files]; //later you can add extra in it too
   echo json_encode($response);

这里的输出应该是这样

{"files": ["xxxx.apk","xxy.apk"]}

如何解决此错误'JSONArray无法转换为JSONObject'

1 个答案: