發送多個數據對UDP套接字的Java的Android

Question

我有問題發送UDP的幾個數據是重複發送的最後一個

UDP_Client Client = new UDP_Client(); 

Client.Message = "Your message1"; 
Client.NachrichtSenden(); 
Client.Message = "Your message2"; 
Client.NachrichtSenden(); 
Client.Message = "Your message3"; 
Client.NachrichtSenden(); 

輸出

你MESSAGE3

你message3

您的留言3

我使用這個源

import java.net.DatagramPacket; 
import java.net.DatagramSocket; 
import android.annotation.SuppressLint; 
import android.os.AsyncTask; 
import android.os.Build; 

public class UDP_Client 
{ 
private AsyncTask<Void, Void, Void> async_cient; 
public String Message; 

@SuppressLint("NewApi") 
public void NachrichtSenden() 
{ 
    async_cient = new AsyncTask<Void, Void, Void>() 
    { 
     @Override 
     protected Void doInBackground(Void... params) 
     { 
      DatagramSocket ds = null; 

      try 
      { 
       ds = new DatagramSocket(); 
       DatagramPacket dp;       
       dp = new DatagramPacket(Message.getBytes(), Message.length(), Main.BroadcastAddress, Main.SERVER_PORT); 
       ds.setBroadcast(true); 
       ds.send(dp); 
      } 
      catch (Exception e) 
      { 
       e.printStackTrace(); 
      } 
      finally 
      { 
       if (ds != null) 
       { 
        ds.close(); 
       } 
      } 
      return null; 
     } 

     protected void onPostExecute(Void result) 
     { 
      super.onPostExecute(result); 
     } 
    }; 

    if (Build.VERSION.SDK_INT >= 11) async_cient.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 
    else async_cient.execute(); 
    } 
} 

（形式：Send and receive data on UDP Socket java android）

Answer 1

固定

public class UDP_Client 
{ 
    private AsyncTask<Void, Void, Void> async_cient; 
    public String Message; 

    @SuppressLint("NewApi") 
    public void NachrichtSenden(final String word) 
    { 
     async_cient = new AsyncTask<Void, Void, Void>() 
     { 
      @Override 
      protected Void doInBackground(Void... params) 
      { 

       DatagramSocket ds = null; 

       try 
       { 
        ds = new DatagramSocket(); 
        DatagramPacket dp;       
        dp = new DatagramPacket(word.getBytes(), word.length(), InetAddress.getByName(TXIp), TXPort); 
        ds.setBroadcast(true); 
        ds.send(dp); 
       } 
       catch (Exception e) 
       { 
        e.printStackTrace(); 
       } 
       finally 
       { 
        if (ds != null) 
        { 
         ds.close(); 
        } 
       } 
       return null; 
      } 

      protected void onPostExecute(Void result) 
      { 
       super.onPostExecute(result); 
      } 
     }; 

     if (Build.VERSION.SDK_INT >= 11) async_cient.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 
     else async_cient.execute(); 
    } 
    } 

和使用

UDP_Client Client = new UDP_Client(); 
    Client.NachrichtSenden("Your message1"); 
    Client.NachrichtSenden("Your message2"); 
    Client.NachrichtSenden("Your message3");