java - 如何从 DJANGO 服务器获取和使用 HTTPResponse 消息

Question

如何获取从 DJANGO View 返回的响应消息并将其放入 TextView 中？大多数答案都谈到使用 Httpresponse ，但正如我所读到的，它已被弃用。我使用的是 SDK v28。

Android Studio 中的 Java 代码:

private class HTTPAsyncTask_wdgt extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... urls) {
            try {
                try {
                    return HttpPost_wdgt(urls[0]);
                } catch (JSONException e) {
                    e.printStackTrace();
                    return "Error!";
                }
            } catch (IOException e) {
                return "Unable to retrieve web page. URL may be invalid.";
            }
        }
    }

private String HttpPost_wdgt(String myUrl) throws IOException, JSONException {

    URL url = new URL(myUrl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();

    conn.setDoOutput(true);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");

    JSONObject jsonObject = buildJsonObject_wdgt(); //Just takes some data from the app and returns JSON to be posted.
    setPostRequestContent_wdgt(conn, jsonObject);

    conn.connect();
    return conn.getResponseMessage()+"";
}

private void setPostRequestContent_wdgt(HttpURLConnection conn,
                                   JSONObject jsonObject) throws IOException {
    OutputStream os = conn.getOutputStream();
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
    writer.write(jsonObject.toString());
    writer.flush();
    writer.close();

    os.close();
}

Django View :(现在它只从发布的 JSON 返回“mac”)

@csrf_exempt
def req_exec(request):

    ret = request.POST
    data = json.loads(request.body)

    return HttpResponse(data['mac'])

Answer 1

我通常使用 OKHttp 来获取和处理请求，这里是一个 Vogella tutorial帮助开始。