Java Twitter趋势API-org.json.JSONException（Android）

我试图获取Twitter趋势，但得到了JSONException。搜索了其他类似的主题并尝试了可能的方法，但仍然得到相同的异常。我是JSON新手，使用API。也许，我错过了一些简单的东西，但就是看不见。希望你能帮我看看。提前谢谢

作为Twitter API，“响应是一个“趋势”对象数组，对趋势主题的名称进行编码…”。因此，我试图以JSONObject的JSONArray（趋势）的形式获得响应

在日志中，我看到，我得到状态代码200。这就是我得到的：

D/Authorization Class: GET response code: 200
D/Authorization Class: JSON response: [{"trends":[{"name":"#\u0627\u0644\u0627\u062A\u062D\u0627\u062F_\u0627\u0644\u0647\u0644\u0627\u0644","url":"http:\/\/twitter.com\/search?q=%23%D8%A7%D9%84%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D9%84%D9%87%D9%84%D8%A7%D9%84","promoted_content":null,"query":"%23%D8%A7%D9%84%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D9%84%D9%87%D9%84%D8%A7%D9%84","tweet_volume":null},{"name":"#KohLanta","url":"http:\/\/twitter.com\/search?q=%23KohLanta","promoted_content":null,"query":"%23KohLanta","tweet_volume":13188},{"name":"Anthony Weiner","url":"http:\/\/twitter.com\/search?q=%22Anthony+Weiner%22","promoted_content":null,"query":"%22Anthony+Weiner%22","tweet_volume":39739},{"name":"#mitamtour","url":"http:\/\/twitter.com\/search?q=%23mitamtour","promoted_content":null,"query":"%23mitamtour","tweet_volume":21580},{"name":"#HistoriasTerrorEn4Palabras","url":"http:\/\/twitter.com\/search?q=%23HistoriasTerrorEn4Palabras","promoted_content":null,"query":"%23HistoriasTerrorEn4Palabras","tweet_volume":15852},{"name":"#YoTrabajoPorLapatria","url":"http:\/\/twitter.com\/search?q=%23YoTrabajoPorLapatria","promoted_content":null,"query":"%23YoTrabajoPorLapatria","tweet_volume":75066},{"name":"Milagro Sala","url":"http:\/\/twitter.com\/search?q=%22Milagro+Sala%22","promoted_content":null,"query":"%22Milagro+Sala%22","tweet_volume":18934},{"name":"Drake and Taylor Swift","url":"http:\/\/twitter.com\/search?q=%22Drake+and+Taylor+Swift%22","promoted_content":null,"query":"%22Drake+and+Taylor+Swift%22","tweet_volume":47344},{"name":"Cenk Tosun","url":"http:\/\/twitter.com\/search?q=%22Cenk+Tosun%22","promoted_content":null,"query":"%22Cenk+Tosun%22","tweet_volume":null},{"name":"FOCO BELIEBERS","url":"http:\/\/twitter.com\/search?q=%22FOCO+BELIEBERS%22","promoted_content":null,"query":"%22FOCO+BELIEBERS%22","tweet_volume":59554},{"name":"\u062E\u0627\u0644\u062F \u0627\u0644\u0633\u0645\u064A\u0631\u064A","url":"http:\/\/twitter.com\/search?q=%22%D8%AE%D8%A7%D9%84%D8%AF+%D8%A7%D9%84%D8%B3%D9%85%D9%8A%D8%B1%D9%8A%22","promoted_content":null,"query":"%22%D8%AE%D8%A7%D9%84%D8%AF+%D8%A7%D9%84%D8%B3%D9%85%D9%8A%D8%B1%D9%8A%22","tweet_volume":null},{"name":"Ergin Ataman","url":"http:\/\/twitter.com\/search?q=%22Ergin+Ataman%22","promoted_content":null,"query":"%22Ergin+Ataman%22","tweet_volume":null},{"name":"#LOSCPSG","url":"http:\/\/twitter.com\/search?q=%23LOSCPSG","promoted_content":null,"query":"%23LOSCPSG","tweet_volume":12447},{"name":"#NationalChocolateDay","url":"http:\/\/twitter.com\/search?q=%23NationalChocolateDay","promoted_content":null,"query":"%23NationalChocolateDay","tweet_volume":71011},{"name":"#T\u00DCRK\u00FCnBayram\u013129Ekim","url":"http:\/\/twitter.com\/search?q=%23T%C3%9CRK%C3%BCnBayram%C4%B129Ekim","promoted_content":null,"query":"%23T%C3%9CRK%C3%BCnBayram%C4%B129Ekim","tweet_volume":37252},{"name":"#art\u0131kbenimsin","url":"http:\/\/twitter.com\/search?q=%23art%C4%B1kbenimsin","promoted_content":null,"query":"%23art%C4%B1kbenimsin","tweet_volume":73324},{"name":"#BakeOffItalia","url":"http:\/\/twitter.com\/search?q=%23BakeOffItalia","promoted_content":null,"query":"%23BakeOffItalia","tweet_volume":null},{"name":"#\u0632\u062F_\u0631\u0635\u064A\u062F\u0643_13","url":"http:\/\/twitter.com\/search?q=%23%D8%B2%D8%AF_%D8%B1%D8%B5%D9%8A%D8%AF%D9%83_13","promoted_content":null,"query":"%23%D8%B2%D8%AF_%D8%B1%D8%B5%D9%8A%D8%AF%D9%83_13","tweet_volume":20390},{"name":"#ReisBedelliAskerlik\u0130stiyoruz","url":"http:\/\/twitter.com\/search?q=%23ReisBedelliAskerlik%C4%B0stiyoruz","promoted_content":null,"query":"%23ReisBedelliAskerlik%C4%B0stiyoruz","tweet_volume":15625},{"name":"#ViihTubeVoltaProUtero","url":"http:\/\/twitter.com\/search?q=%23ViihTubeVoltaProUtero","promoted_content":null,"query":"%23ViihTubeVoltaProUtero","tweet_volume":91304},{"name":"#tvoh","url":"http:\/\/twitter.com\/search?q=%23tvoh","promoted_content":null,"query":"%23tvoh","tweet_volume":null},{"name":"#ThatsMyGirlProjectTODAY","url":"http:\/\/twitter.com\/search?q=%23ThatsMyGirlProjectTODAY","promoted_conte<code>

错误行是：

E/Authorization Class: GET Error : org.json.JSONException: Value [{"as_of":"2016-10-28T19:57:52Z","trends":[{"query":"%23%D8%A7%D9%84%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D9%84%D9%87%D9%84%D8%A7%D9%84","url":"http:\/\/twitter.com\/search?q=%23%D8%A7%D9%84%D8%A7%D8%AA%D8%AD%D8%A7%D8%AF_%D8%A7%D9%84%D9%87%D9%84%D8%A7%D9%84","tweet_volume":null,"promoted_content":null,"name":"#الاتحاد_الهلال"},{"query":"%23KohLanta","url":"http:\/\/twitter.com\/search?q=%23KohLanta","tweet_volume":13188,"promoted_content":null,"name":"#KohLanta"},{"query":"%22Anthony+Weiner%22","url":"http:\/\/twitter.com\/search?q=%22Anthony+Weiner%22","tweet_volume":39739,"promoted_content":null,"name":"Anthony Weiner"},{"query":"%23mitamtour","url":"http:\/\/twitter.com\/search?q=%23mitamtour","tweet_volume":21580,"promoted_content":null,"name":"#mitamtour"},{"query":"%23HistoriasTerrorEn4Palabras","url":"http:\/\/twitter.com\/search?q=%23HistoriasTerrorEn4Palabras","tweet_volume":15852,"promoted_content":null,"name":"#HistoriasTerrorEn4Palabras"},{"query":"%23YoTrabajoPorLapatria","url":"http:\/\/twitter.com\/search?q=%23YoTrabajoPorLapatria","tweet_volume":75066,"promoted_content":null,"name":"#YoTrabajoPorLapatria"},{"query":"%22Milagro+Sala%22","url":"http:\/\/twitter.com\/search?q=%22Milagro+Sala%22","tweet_volume":18934,"promoted_content":null,"name":"Milagro Sala"},{"query":"%22Drake+and+Taylor+Swift%22","url":"http:\/\/twitter.com\/search?q=%22Drake+and+Taylor+Swift%22","tweet_volume":47344,"promoted_content":null,"name":"Drake and Taylor Swift"},{"query":"%22Cenk+Tosun%22","url":"http:\/\/twitter.com\/search?q=%22Cenk+Tosun%22","tweet_volume":null,"promoted_content":null,"name":"Cenk Tosun"},{"query":"%22FOCO+BELIEBERS%22","url":"http:\/\/twitter.com\/search?q=%22FOCO+BELIEBERS%22","tweet_volume":59554,"promoted_content":null,"name":"FOCO BELIEBERS"},{"query":"%22%D8%AE%D8%A7%D9%84%D8%AF+%D8%A7%D9%84%D8%B3%D9%85%D9%8A%D8%B1%D9%8A%22","url":"http:\/\/twitter.com\/search?q=%22%D8%AE%D8%A7%D9%84%D8%AF+%D8%A7%D9%84%D8%B3%D9%85%D9%8A%D8%B1%D9%8A%22","tweet_volume":null,"promoted_content":null,"name":"خالد السميري"},{"query":"%22Ergin+Ataman%22","url":"http:\/\/twitter.com\/search?q=%22Ergin+Ataman%22","tweet_volume":null,"promoted_content":null,"name":"Ergin Ataman"},{"query":"%23LOSCPSG","url":"http:\/\/twitter.com\/search?q=%23LOSCPSG","tweet_volume":12447,"promoted_content":null,"name":"#LOSCPSG"},{"query":"%23NationalChocolateDay","url":"http:\/\/twitter.com\/search?q=%23NationalChocolateDay","tweet_volume":71011,"promoted_content":null,"name":"#NationalChocolateDay"},{"query":"%23T%C3%9CRK%C3%BCnBayram%C4%B129Ekim","url":"http:\/\/twitter.com\/search?q=%23T%C3%9CRK%C3%BCnBayram%C4%B129Ekim","tweet_volume":37252,"promoted_content":null,"name":"#TÜRKünBayramı29Ekim"},{"query":"%23art%C4%B1kbenimsin","url":"http:\/\/twitter.com\/search?q=%23art%C4%B1kbenimsin","tweet_volume":73324,"promoted_content":null,"name":"#artıkbenimsin"},{"query":"%23BakeOffItalia","url":"http:\/\/twitter.com\/search?q=%23BakeOffItalia","tweet_volume":null,"promoted_content":null,"name":"#BakeOffItalia"},{"query":"%23%D8%B2%D8%AF_%D8%B1%D8%B5%D9%8A%D8%AF%D9%83_13","url":"http:\/\/twitter.com\/search?q=%23%D8%B2%D8%AF_%D8%B1%D8%B5%D9%8A%D8%AF%D9%83_13","tweet_volume":20390,"promoted_content":null,"name":"#زد_رصيدك_13"},{"query":"%23ReisBedelliAskerlik%C4%B0stiyoruz","url":"http:\/\/twitter.com\/search?q=%23ReisBedelliAskerlik%C4%B0stiyoruz","tweet_volume":15625,"promoted_content":null,"name":"#ReisBedelliAskerlikİstiyoruz"},{"query":"%23ViihTubeVoltaProUtero","url":"http:\/\/twitter.com\/search?q=%23ViihTubeVoltaProUtero","tweet_volume":91304,"promoted_content":null,"name":"#ViihTubeVoltaProUtero"},{"query":"%23tvoh","url":"http:\/\/twitter.com\/search?q=%23tvoh","tweet_volume":null,"promoted_content":null,"name":"#tvoh"},{"query":"%23ThatsMyGirlProjectTODAY","url":"http:\/\/twitter.com\/search?q=%23ThatsMyGirlProjectTODAY","tweet_volume":51622,"promoted_content":null,"name":"#ThatsMyGirlProjectTODAY"},{"query":"%23BuenV

相关代码块为：

                while ((metin = bufferedReader.readLine()) != null){
            stringBuilder.append(metin);
        }

        Log.d(TAG, "GET response code: " + String.valueOf(httpURLConnection.getResponseCode()));
        Log.d(TAG, "JSON response: " + stringBuilder.toString());

        String response = stringBuilder.toString();

        JSONObject jsonResponse = new JSONObject(response);

        JSONArray jsonArray = jsonResponse.getJSONArray("trends");
        JSONObject jsonObj;


        for (int i=0; i < jsonArray.length(); i++){
           // jsonSonuc =(JsonObject) jsonDizi.get(i);
            Trend trend = new Trend();

            jsonObj = jsonArray.getJSONObject(i);
            trend.set_trendQuery(jsonObj.getString("query"));
            trend.set_trendURL(jsonObj.getString("url"));                
            trend.set_trendName(jsonObj.getString("name"));

            trends.add(i,trend);
        }
   }
    catch(Exception e){
        Log.e(TAG, "GET Error : " + Log.getStackTraceString(e));
    }
    finally {
        if (httpURLConnection != null)
            httpURLConnection.disconnect();
    }

while（（metin=bufferedReader.readLine（））！=null）{
stringBuilder.append（metin）；
}
Log.d（标记，“获取响应代码：”+String.valueOf（httpURLConnection.getResponseCode（））；
d（标记“JSON响应：”+stringBuilder.toString（））；
字符串响应=stringBuilder.toString（）；
JSONObject jsonResponse=新的JSONObject（响应）；
JSONArray JSONArray=jsonResponse.getJSONArray（“趋势”）；
JSONObject jsonObj；
for（int i=0；i

在异步任务中调用MainActivity中的方法：

     public class BringTheTrendsTask extends AsyncTask<Object, Void, ArrayList<Trend>> {

    private ProgressDialog progressDialog;

    @Override
    protected void onPreExecute(){
        super.onPreExecute();
        /*progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("Loading..!");
        progressDialog.setCancelable(false);
        progressDialog.show();*/
    }

    @Override
    protected ArrayList<Trend> doInBackground(Object... param) {
        if(NetworkControl.haveConnection(MainActivity.this))
            return Authorization.getTrends();
        else {
            Toast.makeText(MainActivity.this, "Connection error", Toast.LENGTH_LONG);
            return null;
        }
    }

    @Override
    protected void onPostExecute(ArrayList<Trend> trends){
    /*
        progressDialog.dismiss();
   */
        if(trends.isEmpty())
            Toast.makeText(MainActivity.this,"ArrayList-Trend blank",Toast.LENGTH_LONG);
        else
            FillTheListView(trends);
    }
}

public类带来rendstask扩展异步任务{
私有进程对话；
@凌驾
受保护的void onPreExecute（）{
super.onPreExecute（）；
/*progressDialog=新建progressDialog（MainActivity.this）；
progressDialog.setMessage（“正在加载…”）；
progressDialog.setCancelable（假）；
progressDialog.show（）*/
}
@凌驾
受保护的ArrayList doInBackground（对象…参数）{
if（NetworkControl.haveConnection（MainActivity.this））
返回Authorization.getTrends（）；
否则{
Toast.makeText（MainActivity.this，“连接错误”，Toast.LENGTH\u LONG）；
返回null；
}
}
@凌驾
受保护的void onPostExecute（ArrayList趋势）{
/*
progressDialog.disclose（）；
*/
if（trends.isEmpty（））
Toast.makeText（MainActivity.this，“ArrayList趋势空白”，Toast.LENGTH\u LONG）；
其他的
FilltListView（趋势）；
}
}

您指出您收到的JSON数据类似于：

[{“趋势”：..}]

它是一个

JSONArray

包含

JSONObject

的数组，具有

trends

数组：

你做到了：

JSONObject jsonResponse = new JSONObject(response);
JSONArray jsonArray = jsonResponse.getJSONArray("trends");

但应该是这样的：

JSONArray  jsonData = new JSONArray(response);
JSONObject jsonResponse = jsonData.getJSONObject(0);
JSONArray jsonArray = jsonResponse.getJSONArray("trends");

---

此外，最好使用它来解析由特定模式定义的那种JSON数据

好的，在一步一步地思考之后，我想，我已经修复了它。它可能会帮助某人

首先，下面是Trend API的响应示例：

    [  
       {  
        "as_of":"2016-08-24T23:25:43Z",
        "created_at":"2016-08-24T23:24:14Z",
        "locations":[  ],
        "trends":[  ]
       }
   ]

正如我们看到的，响应本身已经是一个JSONArray。我们通过调用jsonArray.getJSONObject（0）进入这个数组。通过这样做，我们达到：

    {  
        "as_of":"2016-08-24T23:25:43Z",
        "created_at":"2016-08-24T23:24:14Z",
        "locations":[  ],
        "trends":[  ]
    }

所以，它现在是一个JSONObject。我们希望在JSONObject中包含一个数组。因此，我们将其命名为_jsonObject.getJSONArray（“趋势”），并将其分配给一个JSONArray。

---

然后在for循环中，我们可以获得内部值。

在键入我的答案时，您问：）您完全正确。非常感谢你。我会接受的。编辑：不幸的是，我现在还不能投票支持。我得到了50条趋势作为回应。在Twitter API中，它说这只会返回10个趋势。你对此有什么想法吗？在Apigee Twitter API控制台上进行了测试，它也返回了50条趋势。其他人似乎有这个问题，请参见