Question

我正在使用此adt代码从php url获取回显数据。

  class asynctask extends AsyncTask<String, String, String>{

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

        HttpClient httpclient = new DefaultHttpClient();
        HttpResponse response;
        String responseString = null;

        try {

            response = httpclient.execute(new HttpGet(uri[0]));
            StatusLine statusLine = response.getStatusLine();
            if(statusLine.getStatusCode() == HttpStatus.SC_OK){
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                response.getEntity().writeTo(out);
                responseString = out.toString();
                out.close();
            } else{
                //Closes the connection.


                response.getEntity().getContent().close();
            }
        } catch (ClientProtocolException e) {
            //TODO Handle problems..

        } catch (IOException e) {
            //TODO Handle problems..

        }
        return responseString;
    }

    @Override
    protected void onPostExecute(String result) {
        super.onPostExecute(result);
    ///////////////////////////////////////////////    
      Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG).show();
        try {

   //       txv1.setText(result);

        }
        catch (Exception e) {
            // TODO: handle exception


        }
    }
}

来自 -

  new asynctask().execute("http://mmbics.com/get.php");

即使我看到php url上有什么回音，它确实无法正常工作。它可以显示其他没有mysql请求的php echo。请帮助我。它也不能显示这个php回声。

  http://mmbics.com/index.php

Answer 1

首先我建议不推荐使用DefaultHttpClient。您应该将其更改为OkHttp客户端或HttpUrlConnect。请参阅下面的代码段，您可以将其作为获取此请求的参考。

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("http://mmbics.com/get.php")
  .get()
  .build();

Response response = client.newCall(request).execute();

如果你坚持使用它，请告诉我。这是简单的Http Get Request电话。

感谢。

Answer 2

使用Volley的网络connectoin lib，它简单而强大的lib，所以最好用这个来调用你的网址，

StringRequest strReq = new StringRequest(Method.GET,
                Const.URL_STRING_REQ, new Response.Listener<String>() {

                    @Override
                    public void onResponse(String response) {
                        Log.d(TAG, response.toString());
                        msgResponse.setText(response.toString());
                        hideProgressDialog();

                    }
                }, new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError error) {
                        VolleyLog.d(TAG, "Error: " + error.getMessage());
                        hideProgressDialog();
                    }
                }) {
            @Override
            public Priority getPriority() {
                return priority;
            }

        };

请查看此参考：http://www.androidhive.info/2014/05/android-working-with-volley-library-1/

Android无法从php获取数据

2 个答案: