TCP 연결의 두 가지 간단한 데이터 전송 방식

package com.magcomm.net;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import java.nio.CharBuffer;

import org.apache.http.util.EncodingUtils;

import android.util.Log;

public class SocketClient {
	private static final String tags = "com.magcomm.nmc, SocketClient";
	private Socket socket;   
	private final String SERVER_HOST_IP = "192.168.0.15";
	private final String SERVER_HOST_NAME = "mail.magcomm.cn";
	private final int SERVER_HOST_PORT = 58889;
	
    private InputStream mInputStream;                 
	private OutputStream mOutputStream; 
    private PrintWriter mPrintWriter; 
	private BufferedReader reader;
    public SocketClient()  
    {  
  
    }  
      
    public boolean connection()  
    {  
        boolean bRet = false;  
        try  
        {  
            //   
            InetAddress ia = InetAddress.getByName(SERVER_HOST_NAME); 
            socket = new Socket(ia, SERVER_HOST_PORT);  
            //socket.connect(new InetSocketAddress(SERVER_HOST_NAME, SERVER_HOST_PORT),10000);
            
            bRet = true;  
        } catch (Exception e)  
        {  
            // TODO: handle exception  
        	Log.i(tags, "socket open error" + e.getMessage());
        }  
              
        return bRet;  
    }  
      
    //   
	public boolean sendMsg(String msg) {
		boolean bRet = false;
		if (socket != null) {
			if (socket.isConnected()) {
				// SOCKET   
				try {
					mPrintWriter = new PrintWriter(socket.getOutputStream(), true);
					mPrintWriter.print(msg);
					mPrintWriter.flush();
					bRet = true;
				} catch (IOException e) {
					// TODO Auto-generated catch block
					Log.i(tags, "write socket error");
					e.printStackTrace();
				}
					
			}
		}
		return bRet;
	}
	public boolean sendMsg2(byte[] buffer, int offset, int count) {
		boolean bRet = false;
		if (socket != null) {
			if (socket.isConnected()) {
				// SOCKET   
				try {
					mOutputStream = socket.getOutputStream();
					mOutputStream.write(buffer, offset, count);
					mOutputStream.flush();
					Log.i("NMCDataUnPack", "socket send success--------");
					bRet = true;
				} catch (IOException e) {
					// TODO Auto-generated catch block
					Log.i(tags, "write socket error");
					e.printStackTrace();
				}
					
			}
		}
		return bRet;
	}
	
    //   
    public String readMsg()  
    {  
        String msgString = "";  
        try  
        {  
        	mInputStream = socket.getInputStream(); 
            byte buffer[] = new byte[1024];  
            int reCount = mInputStream.read(buffer);  
            msgString = EncodingUtils.getString(buffer, /*"GB2312"*/"US-ASCII"); 
        }catch (Exception e)  
        {  
        	Log.i(tags, "read socket error");
        	e.printStackTrace();
        } 
        return msgString;  
    }  
    public String readMsg2()  
    {  
        String msgString = "";  
   
        	try {
        		char[] buffer = new char[1024];  
				Reader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
				reader.read(buffer);
				msgString = buffer.toString(); 
			} catch (IOException e) {
				Log.i(tags, "read socket error");
				e.printStackTrace();
			}
       
        return msgString;  
    }    
      
    public void close()  
    {  
        try  
        {   mInputStream.close();
        	mPrintWriter.close();
            mOutputStream.close();
            socket.close();  
        } catch (Exception e)  
        {  
            // TODO: handle exception  
        	Log.i(tags, "socket close error" + e.getMessage());
        }  
    }  
}