未知的主機異常，Apache HttpClient，Java，wunderground

Question

我一直在這個特殊的困境上停留了一段時間，我已經搜尋了該網站並找到了一些幫助，但是並沒有解決我的特定問題。 我正在嘗試連接到網站以從中提取JSON數據。 主機是我不確定的是：

DefaultHttpClient client = new DefaultHttpClient();
HttpHost targetHost = new HttpHost("www.wunderground.com", 80);
    HttpGet httpGet = new HttpGet(urllink); // urllink is "api.wunderground.com/api/my_key/conditions/forecast/hourly/alerts/q/32256.json"
    httpGet.setHeader("Accept", "application/json");
    httpGet.setHeader("Content-type", "application/json");

    HttpResponse response = client.execute(targetHost, httpGet);

    HttpEntity entity = response.getEntity();
    InputStream instream = entity.getContent();
    BufferedReader reader = new BufferedReader(new InputStreamReader(instream));

    StringBuilder stringBuilder = new StringBuilder();
    String line = null;
    try {
        while ((line = reader.readLine()) != null) {
            stringBuilder.append(line + "\n");
        }
    } catch (Exception e) {
        // print stacktrace
        return null;
    } finally {
        try {
            instream.close();
        } catch (Exception e) {
            // print stacktrace
            return null;
        }
    }

    return stringBuilder.toString();

主機可以是www.wunderground.com或api.wunderground.com ，但是當我嘗試使用其中任何一個Unknown host exception都會收到“ Unknown host exception 。

我發現了錯誤。 那是我在android清單中沒有權限！

Answer 1

該呼叫應類似於：

http://api.wunderground.com/api/Your_Key/conditions/q/CA/San_Francisco.json

或如API中所述，

GET http://api.wunderground.com/api/Your_Key/features/settings/q/query.format