android開發 socket接收圖片並儲存

標籤：

邏輯：接收到socket之後需要將socket發送的圖片資料儲存下來並通知handler更新介面

關鍵代碼：

public void readImage(Socket socket)         {            try            {                InputStream in = socket.getInputStream();                BufferedInputStream bis = new BufferedInputStream(in);                Bitmap bitmap = BitmapFactory.decodeStream(bis);//這個好像是android裡的                 //首先看看檔案是否存在                File f = new File(mfilePath);                File bmpFile = new File(mfilePath, "screen.png");                if (!f.exists()) {                    f.mkdirs();                }                if (bmpFile.exists()) {                    bmpFile.delete();                }                FileOutputStream out = new FileOutputStream(bmpFile);                bitmap.compress(Bitmap.CompressFormat.PNG, 100,out);                bis.close();                in.close();                            }            catch(Exception ex)            {                Log.v(TAG, ex.getMessage());                            }            finally            {                Message msg = new Message();                msg.what = 1;  //說明有圖片更新                mHandler.sendMessage(msg);                Log.v(TAG, "接收到圖片，準備handler訊息更新介面");                release();            }        }

伺服器端socket接收所有代碼：

import java.io.BufferedInputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.ServerSocket;import java.net.Socket;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Handler;import android.os.Message;import android.util.Log;/** * 伺服器端完整socket接收代碼（接收用戶端的圖片） * @author huqiang * */public class SocketService implements Runnable{    private static final String TAG = "SZU_TcpService";    private ServerSocket serviceSocket;    private boolean SCAN_FLAG = false; // 接收掃描標識    private boolean REV_FLAG = false; // 接收標識        private static String mfilePath = null; // 存放接收檔案的路徑    private static Context mContext;    private static SocketService instance; // 唯一執行個體    private Thread mThread;    private boolean IS_THREAD_STOP = false; // 是否線程開始標誌    private static Handler mHandler;    public SocketService()    {        try        {            serviceSocket = new ServerSocket(4700);            Log.d(TAG, "建立監聽伺服器ServerSocket成功");        } catch (IOException e)        {            Log.d(TAG, "建立監聽伺服器ServerSocket失敗");            e.printStackTrace();        }        mThread = new Thread(this);    }    /**     * <p>     * 擷取TcpService執行個體     * <p>     * 單例模式，返回唯一執行個體     */    public static SocketService getInstance(Context context,Handler handler,String filepath)    {        mContext = context;        mHandler = handler;        mfilePath = filepath;        if (instance == null)        {            instance = new SocketService();        }        return instance;    }    public void setSavePath(String fileSavePath)    {        Log.d(TAG, "設定儲存路徑成功,路徑為" + fileSavePath);        this.mfilePath = fileSavePath;        // REV_FLAG=true;    }    public SocketService(Context context)    {        this();        mContext = context;    }    private void scan_recv()    {        try        {            Socket socket = serviceSocket.accept(); // 接收UDP資料報//            socket.setSoTimeout(10*1000); // 設定掉線時間            Log.d(TAG, "用戶端串連成功");            //通過子線程來迴圈讀取socket的訊息            ListenClientSocket ls = new ListenClientSocket(socket);            ls.start();        } catch (IOException e)        {            e.printStackTrace();            Log.d(TAG, "用戶端串連失敗");            SCAN_FLAG = false;        }    }    @Override    public void run()    {        Log.d(TAG, "TCP_Service線程開啟");        while (!IS_THREAD_STOP)        {            if (SCAN_FLAG)            {                scan_recv();            }        }    }    public void release()    {        if (null != serviceSocket && !serviceSocket.isClosed())            try            {                serviceSocket.close();                serviceSocket = null;                Log.d(TAG, "關閉socket成功");            } catch (IOException e)            {                // TODO Auto-generated catch block                e.printStackTrace();            }        while (SCAN_FLAG == true)            ;// 直到SCAN_FLAG為false的時候退出迴圈        SCAN_FLAG = false;        IS_THREAD_STOP = true;    }    public void startReceive()    {        SCAN_FLAG = true; // 使能掃描接收標識        if (!mThread.isAlive())            mThread.start(); // 開啟線程    }    public void stopReceive()    {        while (SCAN_FLAG == true)            ;        SCAN_FLAG = false; // 失能掃描接收標識    }        /**     * 監聽用戶端發送的訊息     * @author huqiang     *     */    class ListenClientSocket implements Runnable    {        private boolean IsListening = false;        private Socket clientSocket;        private Thread thread;        public ListenClientSocket(Socket s)        {            this.clientSocket = s;            this.thread = new Thread(this);        }        @Override        public void run() {            while(clientSocket!=null&&!clientSocket.isClosed()&&IsListening)            {                readImage(this.clientSocket);            }        }        public void start()        {            IsListening = true;            thread.start();        }        public void release()        {            IsListening = false;            if(!clientSocket.isClosed())            {                try {                    clientSocket.close();                    clientSocket = null;                } catch (IOException e) {                    e.printStackTrace();                }                            }        }        public void readImage(Socket socket)         {            try            {                InputStream in = socket.getInputStream();                BufferedInputStream bis = new BufferedInputStream(in);                Bitmap bitmap = BitmapFactory.decodeStream(bis);//這個好像是android裡的                 //首先看看檔案是否存在                File f = new File(mfilePath);                File bmpFile = new File(mfilePath, "screen.png");                if (!f.exists()) {                    f.mkdirs();                }                if (bmpFile.exists()) {                    bmpFile.delete();                }                FileOutputStream out = new FileOutputStream(bmpFile);                bitmap.compress(Bitmap.CompressFormat.PNG, 100,out);                bis.close();                in.close();                            }            catch(Exception ex)            {                Log.v(TAG, ex.getMessage());                            }            finally            {                Message msg = new Message();                msg.what = 1;  //說明有圖片更新                mHandler.sendMessage(msg);                Log.v(TAG, "接收到圖片，準備handler訊息更新介面");                release();            }        }            }}

 

android開發 socket接收圖片並儲存