android: 无法解析符号 "urls"

Question

我是 android 编程新手，我正在关注 youtube 视频中的代码，但我收到错误 "cannot resolve the symbol "urls"" for " HttpGet httppost = new HttpGet(urls[0 ]);"。我通过研究发现 android 中不再支持 HttpGet 是否有任何解决方法

    @Override
protected Boolean doInBackground(String... params) {
    try {

        HttpGet httppost = new HttpGet(urls[0]);
        HttpClient httpclient = new DefaultHttpClient();
        HttpResponse respone = httpclient.execute(httppost);

        int status = respone.getStatusLine().getStatusCode();

        if (status == 200) {
            HttpEntity entity = respone.getEntity();
            String data = EntityUtils.toString(entity);

            JSONObject jsono = new JSONObject(data);
            JSONArray jarray = jsono.getJSONArray("forecast");

            for (int i = 0; i < jarray.length(); i++) {
                JSONObject object = jarray.getJSONObject(i);

                Forecast forecast = new Forecast();

                forecast.setCode(object.getString("code"));
                forecast.setDate(object.getString("date"));
                forecast.setDay(object.getString("day"));
                forecast.setHigh(object.getString("high"));
                forecast.setLow(object.getString("low"));
                forecast.setText(object.getString("text"));

                forecastList.add(forecast);


            }
            return true;
        }


    } catch (ParseException e1) {
        e1.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }


    return false;
}

Answer 1

如果您之前没有在代码中定义网址，只需将代码中的 url 替换为参数 。

Answer 2

您必须将 doInBackground 方法的参数名称更改为 url。您将其作为参数接收，这就是为什么它告诉未定义的网址。

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

}

android: 无法解析符号 "urls"

android: cannot resolve the symbol "urls"

android

androidhttpclient

android-json