//핸드폰용 XML소스
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"   
 android:layout_width="fill_parent"    
 android:layout_height="fill_parent"    
>
<EditText
 android:id="@+id/EditText01"   
 android:layout_height="wrap_content"  
 android:layout_width="fill_parent"
 /> 
<Button
 android:id="@+id/Button01"  
 android:layout_width="wrap_content"   
 android:layout_height="wrap_content"   
 android:text="Send"
 />
 <TextView
 android:id="@+id/TextView01"   
 android:layout_height="wrap_content"   
 android:layout_width="fill_parent"
 /> 
 </LinearLayout>

//핸드폰용 자바소스
package exam.AndSocket;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class AndSocket extends Activity {
    private String return_msg;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        final EditText et = (EditText) findViewById(R.id.EditText01);
        Button btn = (Button) findViewById(R.id.Button01);
        final TextView tv = (TextView) findViewById(R.id.TextView01);

        btn.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                if (et.getText().toString() != null
                        || !et.getText().toString().equals("")) {
                    TCPclient tp = new TCPclient(et.getText().toString());
                   
                   
                    tp.run();

                    Toast t = Toast.makeText(getApplicationContext(),
                            return_msg, Toast.LENGTH_LONG);
                    t.show();
                    tv.setText("Client : : "+return_msg);
                }
            }
        });

    }

    private class TCPclient implements Runnable {
        private static final String serverIP = "172.16.11.137"; // <===== 서버 컴터용 아이피                                       
        private static final int serverPort = 9002; // ex
        private String msg;

        // private String return_msg;

        public TCPclient(String _msg) {
            this.msg = _msg;
        }

        public void run() {
            // TODO Auto-generated method stub
            try {

                InetAddress serverAddr = InetAddress.getByName(serverIP);

                Log.d("TCP", "C: Connecting...");

                Socket socket = new Socket(serverAddr, serverPort);

                try {
                    Log.d("TCP", "C: Sending: '" + msg + "'");
                    PrintWriter out = new PrintWriter(new BufferedWriter(
                            new OutputStreamWriter(socket.getOutputStream())),
// 소켓을 통해 출력 스트림을 받아옵니다.
                            true);

                    out.println(msg);
                    Log.d("TCP", "C: Sent.");
                    Log.d("TCP", "C: Done.");

                    BufferedReader in = new BufferedReader(
                            new InputStreamReader(socket.getInputStream()));
                    return_msg = in.readLine();

                    Log.d("TCP", "C: Server send to me this message -->"
                            + return_msg);
                } catch (Exception e) {
                    Log.e("TCP", "C: Error1", e);
                } finally {
                    socket.close();
                }
            } catch (Exception e) {
                Log.e("TCP", "C: Error2", e);
            }
        }

    }
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//서버용 컴터용

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server implements Runnable {
 public static final int ServerPort = 9002; // ex: 5555
 public static final String ServerIP = "172.16.11.137"; // <=======서버 컴터 아이디 써습니다

  @Override
 public void run() {
  // TODO Auto-generated method stub
  try{
   System.out.println("Server: Connecting...");
   ServerSocket serverSocket = new ServerSocket(ServerPort);
   while (true) {
     Socket client = serverSocket.accept()
     ;
 // 서버 소켓으로 연결요청이 들어오면 연결 맺고 클라이언트 소켓을 생성하고 리턴
     System.out.println("Server: Receiving...");

     try {
      BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
 // 데이터 수신을 위한 입력 스트림 생성
      String str = in.readLine();
      System.out.println("Server: Received: '" + str + "'");
      PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(client.getOutputStream())),true);
 // 데이터 송신에 사용할 출력 스트림 생성
      out.println("Server Received "+ str);
    
     } catch(Exception e) {
      System.out.println("Server: Error");
      e.printStackTrace();
     } finally {
      try {
       client.close();
            } catch (IOException ioe) {
            ioe.printStackTrace();
        }
                     System.out.println("Server: Done.");
      System.out.println("Server: Done.");
     }
    }
   } catch (Exception e) {
    System.out.println("Server: Error");
    e.printStackTrace();
   }
    public static void main(String[] args) {
   // TODO Auto-generated method stub
   Thread desktopServerThread = new Thread(new Server());
   desktopServerThread.start();
  }
 }

///////////////////////////////////////////////////////////////////////////


위에 대로 하면 서버 컴퓨터에 이클립스에
connecting.... 이것만 뜨고 더이상 진행이안되고
핸드폰에서 원하는 내용 에디트텍스트에 입력하고 버튼을 누르면
client :: null
이렇게만 되고 아무 진행이 안되는것 같습니다..ㅜ
메인페스트 퍼미션 넣어줬습니다.

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