java - JSON 响应被切断，Android

Question

我看过很多关于这个主题的帖子，但似乎没有一个能解决我的问题。

问题是来自服务器的 JSON 响应被切断，因此我在尝试将响应放入 JSONArray 时遇到 JSONException。

    json = new JSONArray(EntityUtils.toString(response.getEntity()));

完整代码如下:

    private class AsyncFetchForms extends AsyncTask<String, Void, JSONArray> {

    private HttpClient mClient = new DefaultHttpClient();
    private AsyncTaskCompleteListener<JSONArray> listener;
    private String serverUrl;
    private String credentials;

    private ProgressDialog progressDialog;
    private HttpGet httpGet;
    private String response;
    private BasicResponseHandler responseHandler;
    private boolean showDialog;
    private JSONArray json;



    public AsyncFetchForms(String url, String message, AsyncTaskCompleteListener<JSONArray> listener, boolean showDialog)
    {
        serverUrl = Utils.getServerUrl(context) + url;
        credentials = Utils.getUserCredentials(context);
        this.listener = listener;
        this.showDialog = showDialog;

        httpGet = new HttpGet(serverUrl);
        httpGet.setHeader("Authorization", "Basic " + credentials);
        httpGet.setHeader("Accept", "application/json");
        httpGet.setHeader("Accept-Encoding", "gzip");
        httpGet.setHeader("Connection", "keep-alive");

        responseHandler = new BasicResponseHandler();


        if(showDialog)
        {
            progressDialog = new ProgressDialog(context);
            progressDialog.setMessage(message);
            progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);          
            progressDialog.show();
        }
    }


    @Override
    protected JSONArray doInBackground(String... params) {

        try {
            HttpResponse response = mClient.execute(httpGet);


            if (response.getStatusLine().getStatusCode() == 200) {

                json = new JSONArray(EntityUtils.toString(response.getEntity()));

                return json;
            }
        } catch (ClientProtocolException e) {
           e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(JSONArray result) {
        System.out.println(result.toString());

    }
}

谁能看出问题所在？

Answer 1

Logcat 只能显示大约 4000 个字符。所以你将不得不实现一个递归函数来查看整个日志。使用以下函数查看整个日志:

public static void longInfo(String str) {
    if (str.length() > 4000) {
        Log.d("", str.substring(0, 4000));
        longInfo(str.substring(4000));
    } else
        Log.d("", str);
}