Question

我正在构建应用程序，它将发送用户名并通过POST作为JSONObject传递给我的php脚本，该脚本读取params，获取一些信息，然后将它们作为JSON发送回我的应用程序。

我用Postman在我的机器上测试了脚本，它返回了预期的结果。

但是当我在app中调用它时，urlConnection返回代码响应-1，在完成writer部分后。这是代码：

MainActivity extends AppCompatActivity implements AsyncResponse - getJson(View view)此方法由点击

触发

public void getJson(View view) {
    String user = ((EditText) findViewById(R.id.username)).getText().toString();
    String pass = ((EditText) findViewById(R.id.passwordTxtField)).getText().toString();
    Toast t;
    if (user.isEmpty() || pass.isEmpty()) {
        t = Toast.makeText(this, "Polja ne mogu biti prazna!", Toast.LENGTH_LONG);
        t.show();
        return;
    }
    t = Toast.makeText(this, "Prosledjeni parametri:\nUser: " + user + " Pass: " + pass, Toast.LENGTH_LONG);
    t.show();

    JSONObject json = new JSONObject();
    try {
        json.put("user_name", user);
        json.put("password", pass);

    } catch (JSONException e) {
        e.printStackTrace();
    }

    if (json.length() > 0) {
        sendParams(user, pass);
    }
}
private void sendParams(String user, String pass) {
    JSONObject json = new JSONObject();
    try {
        json.put("user_name", user);
        json.put("password", pass);

    } catch (JSONException e) {
        e.printStackTrace();
    }
    if (json.length() > 0) {
        SendAuthParams sap = (SendAuthParams) new SendAuthParams().execute(String.valueOf(json));
        //call to async class

    }
}
public void processFinish(String s) {
    ((TextView) findViewById(R.id.textView)).setText(s);
}

致电SendAuthParams extends AsyncTask<String, String, String>

public AsyncResponse delegate = null;
private static final String TAG = "SEND";
private String result;
private HttpURLConnection urlConnection;

protected String doInBackground(String... params) {
    String JsonResponseString = null;
    String JsonDATAString = params[0];
    HttpURLConnection urlConnection = null;
    BufferedReader br = null;
    try {                               //had to change port because...Skype
        URL url = new URL("http://myIPv4:81/path/index.php");
        urlConnection = (HttpURLConnection) url.openConnection();


        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        // urlConnection
        urlConnection.setRequestMethod("POST");
        urlConnection.setRequestProperty("Accept", "application/json");
        urlConnection.setRequestProperty("Content-Type", "application/json");

        urlConnection.connect();
        //Write
        OutputStream os = urlConnection.getOutputStream();
        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
        writer.write(JsonDATAString);
        writer.flush();
        writer.close();
        os.close();

        //Read
        StringBuilder sb = null;
        //here is the problem
        int responseCode=urlConnection.getResponseCode();
        if(responseCode==HttpURLConnection.HTTP_OK){
            String line;
            sb = new StringBuilder();

            InputStream is = urlConnection.getInputStream();
            InputStreamReader isr = new InputStreamReader(is,"UTF-8");
            br = new BufferedReader(isr);

            while ((line = br.readLine()) != null) {
                sb.append(line);
            }

        }

        JsonResponseString = sb.toString();

        Log.i(TAG, JsonResponseString);
        //send to post execute
        return JsonResponseString;


    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
        if (br != null) {
            try {
                br.close();
            } catch (final IOException e) {
                Log.e(TAG, "Error closing stream", e);
            }
        }
    }
    return "jbga";
}


@Override
protected void onPostExecute(String s) {
    delegate.processFinish(s);
}}

仅用于从postExecute发送结果 -

public interface AsyncResponse {
    void processFinish(String s);
}

而index.php - 正常工作：

<?php
$json = file_get_contents('php://input');
$userPass = json_decode($json,true);


$url = 'http://someUrl';

// Open a curl session for making the call
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_POST, true);

// Tell curl not to return headers, but do return the response
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

// Set the POST arguments 
$parameters = array(
'user_auth' => array(
'user_name' =>$userPass['user_name'], 
'password' => md5($userPass['password']), 
),
);

$json = json_encode($parameters);
$postArgs = array(
'method' => 'login',
'input_type' => 'JSON',
'response_type' => 'JSON',
'rest_data' => $json,
);

curl_setopt($curl, CURLOPT_POSTFIELDS, $postArgs);

// Make the REST call, returning the result
$response = curl_exec($curl);

// Convert the result from JSON format to a PHP array
$result = json_decode($response);
if ( !is_object($result) ) {
    die("Error handling result.\n");
}
if ( !isset($result->id) ) {
    die("Error: {$result->name} - {$result->description}\n.");
}

// If login success then u get your session id to do task
$session = $result->id;

// Get record
$fields_array = array('first_name','last_name','phone_mobile','phone_work');
$parameters = array(
'session' => $session,                                //Session ID
'module_name' => 'Contacts',                          //Module name
'query' => "",                                        //Where condition without "where" keyword
'order_by' => " leads.last_name ",                    //$order_by
'offset'  => 0,                                       //offset
'select_fields' => $fields_array,                     //select_fields
'link_name_to_fields_array' => array(array()),        //optional
'max_results' => 5,                                   //max results                  
'deleted' => 'false',                                 //deleted
);

$json = json_encode($parameters);
$postArgs = array(
'method' => 'get_entry_list',
'input_type' => 'JSON',
'response_type' => 'JSON',
'rest_data' => $json,
);

curl_setopt($curl, CURLOPT_POSTFIELDS, $postArgs);
$response = curl_exec($curl);

/* Output header */
header('Content-type: application/json');
echo $response;
?>

几乎要忘记，关于错误，它只会抛出NullPointer，告诉null传递给onPostExecute。按道理。希望你们能帮忙。

HttpURLConnection响应代码-1而在Postman上我得到结果

0 个答案: