通过 JSON 将数据发送到服务器 URL [重复]

Question

嗨，我是 AsyncTask 的新手，我需要将数据发送到 API 服务器。我正在连接，我被困在这里。我阅读了有关 AsyncTask 的信息，这是我见过的代码。首先是如果我确定设备是否已连接，它将在给定的 URL 上发送数据，否则。它将通过短信发送

public class SendData extends AsyncTask <String, Void, Boolean> {
    DateFormat dateFormat = new SimpleDateFormat("MMM dd, yyyy HH:mm:ss");
    Date date = new Date();
    String datefinal = dateFormat.format(date).toString();
    String url = "http://192.168.1.212/mobile_alerts_api.php?location=&msg=&datetime=&id=";


    @Override
    protected Boolean doInBackground(String... urls) {
        try{
            HttpGet httppost = new HttpGet(url);
            HttpClient httpclient = new DefaultHttpClient();
            HttpResponse response = httpclient.execute(httppost);

            // StatusLine stat = response.getStatusLine();
            int status = response.getStatusLine().getStatusCode();

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

                JSONObject jsono = new JSONObject(data);
                return true;
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {

            e.printStackTrace();
        }
        return false;
    }
    protected void onPostExecute(Boolean result) {

    }
}

Answer 1

用途：

HttpPost httppost = new HttpPost(url);

而不是

HttpGet httppost = new HttpGet(url);

Get 用于从服务器获取数据。 Post用于向服务器发送数据

Answer 2

        String json=yourJsonData;
     StringEntity se = new StringEntity(json);
httpPost.setEntity(se);
httpPost.setHeader("Content-type", "application/json");

然后在你的异步任务类中执行 httppost