Android套接字错误

Question

我在linux中制作服务器。而客户端是android。 android客户端和linux服务器在同一个本地网络下。 但linux服务器无法捕获客户端的连接。 我的代码有什么问题？

（客户端）

package com.example.hello; 

import java.io.BufferedInputStream; 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.io.OutputStream; 
import java.io.OutputStreamWriter; 
import java.io.PrintWriter; 
import java.net.InetAddress; 
import java.net.ServerSocket; 
import java.net.Socket; 

import android.support.v7.app.ActionBarActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.Toast; 
import java.net.InetAddress; 
import java.net.InetAddress; 
import java.net.InetAddress; 
import java.net.InetAddress; 
import java.net.UnknownHostException; 
import java.util.LinkedList; 
public class MainActivity extends ActionBarActivity { 
    private Button Btn_Connect; 

    private static final int ERROR = -1; 
    private static final int DATA = 2; 
    private static final String ERROR_KEY = "_error"; 
    private static final String DATA_KEY = "_data"; 
    private static int port = 8888; 
    LinkedList<SocketClient> threadList; 



    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     threadList = new LinkedList<MainActivity.SocketClient>(); 
     Btn_Connect = (Button) findViewById(R.id.Btn_cennect); 



     Btn_Connect.setOnClickListener(new OnClickListener() { 
      Socket socket = null; 
      @Override 
      public void onClick(View v) { 
       //Toast.makeText(getApplicationContext(), "asasdfsdf", 100).show(); 
       Log.d("msg", "park0"); 

       SocketClient client = new SocketClient("192.168.171.129"); 
       threadList.add(client); 
       client.start(); 

       Intent intent = new Intent(MainActivity.this, Connected.class); 
       startActivity(intent); 



      } 
     }); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    class SocketClient extends Thread{ 
     boolean threadAlive; 
     String ip; 
     public SocketClient(String ip){ 
       threadAlive = true; 
       this.ip = ip; 
     } 

     @Override 
     public void run() { 
       Socket socket = null; 
       InputStream inputStream = null; 
       BufferedInputStream bufStream = null; 
       try { 
         socket = new Socket(ip,port); 
         inputStream = socket.getInputStream(); 
        // bufStream = new BufferedInputStream(inputStream); 
         int len = 0; 
         byte[] readBytes = new byte[1000]; 
         while((len = bufStream.read(readBytes)) != -1){ 
         //  Message msg = Message.obtain(); 
         // msg.what = DATA; 
          // Bundle bundle = new Bundle(); 
       //    bundle.putString(DATA_KEY, new String(readBytes, 0, len)); 
       //   msg.setData(bundle); 
          // uiHandler.sendMessage(msg); 
         } 

       } catch (Exception e) { 
       //  Message msg = Message.obtain(); 
       //  msg.what = ERROR; 
       //  Bundle bundle = new Bundle(); 
       //  bundle.putString(ERROR_KEY, e.toString()); 
        // msg.setData(bundle); 
        // uiHandler.sendMessage(msg); 
       } finally{ 
         try { 
          bufStream.close(); 
          inputStream.close(); 
          socket.close(); 
         } catch (IOException e) { 
//       Message msg = Message.obtain(); 
//       msg.what = ERROR; 
//       Bundle bundle = new Bundle(); 
//       bundle.putString(ERROR_KEY, e.toString()); 
//       msg.setData(bundle); 
//       uiHandler.sendMessage(msg);  
         } 
       } 
     } 
    } 



} 

Answer 1

public class ChatApplication extends Application { 

    private Socket mSocket; 
    { 
     try { 
      mSocket = IO.socket(Constants.CHAT_SERVER_URL); 
     } catch (URISyntaxException e) { 
      throw new RuntimeException(e); 
     } 
    } 

    public Socket getSocket() { 
     return mSocket; 
    } 
} 

这将返回插座。