Wie Daten schreiben mit HttpURLConnection

Question

Ich hatte Wechsel von API23 bis 22, weil sie sagten Httpclient nicht verfügbar.Bei ich ich hatte Probleme mit Httpclient, Httppost API22 geschaltet und NameValuePair.I fand die Lösung zu verwenden HttpURLConnectionHandler.But I Ich weiß nicht, wie ich es für die folgende Methode verwenden soll.

public void send(View v) 
{ 

    HttpClient httpclient = new DefaultHttpClient(); 
    // put the address to your server and receiver file here 
    HttpPost httppost = new HttpPost("http://yoursite/yourPHPScript.php"); 
    try { 
     List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); 
     // we wont be receiving the parameter ID in your server, but it is here to show you how you can send more data 
     nameValuePairs.add(new BasicNameValuePair("id", "12345")); 
     // message is the parameter we are receiving, it has the value of 1 which is the value that will be sent from your server to your Arduino board 
     nameValuePairs.add(new BasicNameValuePair("message", "1")); 
     httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
     httpclient.execute(httppost); // send the parameter to the server 
    } catch (ClientProtocolException e) { 
     // TODO Auto-generated catch block 
    } catch (IOException e) { 
     // TODO Auto-generated catch block 
    } 
} 

Jemand freundlicherweise mir helfen

Answer 1

Sie können so etwas tun:

public boolean sendPost(MessageSenderContent content) { 

     HttpURLConnection connection; 
     try { 
      URL gcmAPI = new URL("your_url"); 
      connection = (HttpURLConnection) gcmAPI.openConnection(); 

      connection.setRequestMethod("POST");// type of request 
      connection.setRequestProperty("Content-Type", "application/json");//some header you want to add 
      connection.setRequestProperty("Authorization", "key=" + AppConfig.API_KEY);//some header you want to add 
      connection.setDoOutput(true); 

      ObjectMapper mapper = new ObjectMapper(); 
      mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY); 
      DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream()); 
      //content is the object you want to send, use instead of NameValuesPair 
      mapper.writeValue(dataOutputStream, content); 

      dataOutputStream.flush(); 
      dataOutputStream.close(); 

      responseCode = connection.getResponseCode(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
     if (responseCode == 200) { 
      Log.i("Request Status", "This is success response status from server: " + responseCode); 
      return true; 
     } else { 
      Log.i("Request Status", "This is failure response status from server: " + responseCode); 
      return false; 
     } 
} 

Beispiel für MessageSenderContent, als Sie Ihre eigenen für "Botschaft" erstellen und "id":

public class MessageSenderContent implements Serializable { 
    private List<String> registration_ids; 
    private Map<String, String> data; 

    public void addRegId(String regId){ 
     if (registration_ids==null){ 
      registration_ids = new LinkedList<>(); 
      registration_ids.add(regId); 
     } 
    } 

    public void createData(String title,String message) { 
     if (data == null) 
      data = new HashMap<>(); 

     data.put("title", title); 
     data.put("message", message); 
    } 

    public Map<String, String> getData() { 
     return data; 
    } 

    public void setData(Map<String, String> data) { 
     this.data = data; 
    } 

    public List<String> getRegIds() { 
     return registration_ids; 
    } 

    public void setRegIds(List<String> regIds) { 
     this.registration_ids = regIds; 
    } 

    @Override 
    public String toString() { 
     return "MessageSenderContent{" + 
       "registration_ids=" + registration_ids + 
       ", data=" + data + 
       '}'; 
    } 

UPDATE:

Sie können HttpURLConnection verwenden nach dem Import dies in Ihrer build.gradle Datei

android { 
    compileSdkVersion 23 
    buildToolsVersion "23.0.0" 
    useLibrary 'org.apache.http.legacy' // this one will let you use HttpUrlConnection 
    packagingOptions { 
    exclude 'META-INF/NOTICE' 
    exclude 'META-INF/LICENSE' 
    exclude 'META-INF/LICENSE.txt' 
    exclude 'META-INF/NOTICE.txt' 
} 
    ... 
}