使用JsonReader读取json

Question

我正试着用JsonReader来阅读json！一旦我打电话给reader.beginArray()，我就会得到：

java.lang.IllegalStateException:预期的BEGIN_ARRAY，但是字符串。

这是json网址：

http://www.metlink.org.nz/stop/nearbystopdata?lat=-41.278407655948&lng=174.77938892631

    @Override
    protected String doInBackground(String... urls) {

        String result = "";
        String url="http://www.metlink.org.nz/stop/nearbystopdata?lat=-41.278407655948&lng=174.77938892631";

        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(url);
        try {

            HttpResponse response = httpclient.execute(httppost);
            InputStream  in=response.getEntity().getContent();

            JsonReader reader ;

            reader= new JsonReader(new InputStreamReader(in, "UTF-8"));
            reader.setLenient(true);


             try {
                 listData=(ArrayList<DivanData>) readMessagesArray(reader);
             }
             finally {
               reader.close();
             }





        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return result;
    }


      public ArrayList<DivanData> readMessagesArray(JsonReader reader) throws IOException {
             ArrayList<DivanData> messages = new ArrayList();

             try {
                 reader.beginArray();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
             while (reader.hasNext()) {
               messages.add(readMessage(reader));
             }
             reader.endArray();
             return messages;
           }

我做错了什么？

Answer 1

既然您有包含内容的html，那么为什么不尝试使用json (http://jsoup.org/)将json作为字符串从html中获取。它非常简单，需要更少的代码：

    Document d;
    String url="your_url";
    d = Jsoup.connect(url).get();
    Element p = d.select("body p").first(); // fetch from p tag content
    String jsonString = p.text();