Socket for android 簡單一實例，socketandroid

Socket for android 簡單一實例，socketandroid

最近在實現socket通訊，所以寫個demo來簡單實現下。我用了一種是原始的socket實現，另一種是MINA架構來實現的。

下載demo：http://download.csdn.net/detail/qq_29774291/9826648

一.先看第一種方法

a)、建立Socket對象，指明需要已連線的服務器的地址和連接埠。

b)、建立串連後，通過輸出資料流向伺服器發送請求資訊。

c)、通過輸入資料流擷取伺服器的響應資訊。

d)、關閉響應資源

如下是主要代碼

package com.item.item.sock.socket;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.SystemClock;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.net.InetSocketAddress;import java.net.Socket;import java.net.SocketAddress;/** * Socket 通訊 */public class MyServiceOne extends Service {    private Socket socket;    private BufferedReader in = null;    private BufferedWriter out = null;    private boolean close = true;    private Thread readThread;    @Override    public IBinder onBind(Intent intent) {        // TODO: Return the communication channel to the service.        throw new UnsupportedOperationException("Not yet implemented");    }    @Override    public void onCreate() {        super.onCreate();        close = true;        new Thread(new Runnable() {            @Override            public void run() {                int count = 0;                for(;;){                    try {                        count++;                        SocketAddress socketAddress = new InetSocketAddress(ConnectUtils.HOST,ConnectUtils.POST);                        socket = new Socket();                        socket.connect(socketAddress,10000);                        if(socket.isConnected()){                            System.out.println("socket 串連成功");                            in = new BufferedReader(new InputStreamReader(socket.getInputStream(),"UTF-8"));                            out =new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF-8"));                            //發送一個訊息                            out.write("start");                            out.flush();                            //開啟一個線程來讀取伺服器發來的訊息                            readThread.start();                            break;                        }                    }catch (Exception e){                        if(count > ConnectUtils.IDLE_TIME){                            break;                        }else {                            SystemClock.sleep(5000);                        }                    }                }            }        }).start();        readThread = new Thread(new Runnable() {            @Override            public void run() {                while (close){                    String readtext = readText(socket);                    if(readtext !=null){                        System.out.println("伺服器發來的訊息：" + readtext);                    }                }            }        });    }    private String readText(Socket socket) {        String string = null;        if(socket.isConnected()){            try {                char[] buffer = new char[8000];                int count = 0;                if((count = in.read(buffer)) > 0){                    char[] temp = new char[count];                    for(int i=0;i<count;i++){                        temp[i] = buffer[i];                    }                    string = new String(temp);                }            }catch (Exception e){                string = null;            }        }        return  string;    }    @Override    public void onDestroy() {        super.onDestroy();        close = false;        if(socket != null){            try {                socket.close();                socket = null;            } catch (IOException e) {                e.printStackTrace();            }        }    }}

二.第二種方法是用MINA架構實現的

package com.item.item.sock.socket;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.SystemClock;import android.util.Log;import org.apache.mina.core.future.ConnectFuture;import org.apache.mina.core.service.IoHandlerAdapter;import org.apache.mina.core.service.IoService;import org.apache.mina.core.service.IoServiceListener;import org.apache.mina.core.session.IdleStatus;import org.apache.mina.core.session.IoSession;import org.apache.mina.filter.codec.ProtocolCodecFilter;import org.apache.mina.filter.codec.textline.TextLineCodecFactory;import org.apache.mina.transport.socket.nio.NioSocketConnector;import java.net.InetSocketAddress;import java.nio.charset.Charset;/** * 使用MINA架構實現socket通訊 * 由於接受訊息會阻塞Android線程，所以開在子線程中（同時將其放在Service中，讓其在後台運行） */public class MyServiceTwo extends Service {    private String TAG = "jiejie";    private IoSession session = null;    private MinaClientHandler minaClientHandler;    private NioSocketConnector connector = null;    @Override    public IBinder onBind(Intent intent) {        // TODO: Return the communication channel to the service.        throw new UnsupportedOperationException("Not yet implemented");    }    @Override    public void onCreate() {        super.onCreate();        minaClientHandler = new MinaClientHandler();        new Thread(new Runnable() {            @Override            public void run() {                //建立串連用戶端                connector = new NioSocketConnector();                //設定連線逾時時間                connector.setConnectTimeoutMillis(30000);                //添加過濾器                connector.getFilterChain().addLast("codec",new ProtocolCodecFilter(new TextLineCodecFactory(Charset.forName("UTF-8"))));                //設定接收緩衝區大小                connector.getSessionConfig().setReadBufferSize(1024);                //設定處理器                connector.setHandler(minaClientHandler);                //設定預設方位地址                connector.setDefaultRemoteAddress(new InetSocketAddress(ConnectUtils.HOST,ConnectUtils.POST));                //添加重連監聽                connector.addListener(new IoListener(){                    @Override                    public void sessionDestroyed(IoSession ioSession) throws Exception {                        int count = 0;                        for(;;){                            try {                                count++;                                ConnectFuture future = connector.connect();                                future.awaitUninterruptibly();//等待串連建立完成                                session = future.getSession();//擷取session                                if(session.isConnected()){                                    System.out.println("斷線了 但是又重連了");                                    count = 0;                                    break;                                }                            }catch (Exception e){                                if(count > ConnectUtils.IDLE_TIME){                                    break;                                }else {                                    SystemClock.sleep(5000);                                }                            }                        }                    }                });                for(;;){                    try {                        ConnectFuture future = connector.connect();                        future.awaitUninterruptibly();                        System.out.println("socket 串連成功");                        session = future.getSession();                        session.write("start");                        break;                    }catch (Exception e){                        SystemClock.sleep(5000);                    }                }            }        }).start();    }    @Override    public void onDestroy() {        super.onDestroy();        connector.dispose();    }    private class MinaClientHandler extends IoHandlerAdapter{        @Override        public void exceptionCaught(IoSession session, Throwable cause) throws Exception {            super.exceptionCaught(session, cause);            Log.d(TAG,"exceptionCaught--------" + cause);        }        @Override        public void messageReceived(IoSession session, Object message) throws Exception {            super.messageReceived(session, message);            Log.d(TAG,"messageReceived---------"   + message    );        }        @Override        public void messageSent(IoSession session, Object message) throws Exception {            super.messageSent(session, message);            Log.d(TAG,"messageSent-------" + message);        }        @Override        public void sessionClosed(IoSession session) throws Exception {            super.sessionClosed(session);            Log.d(TAG,"sessionClosed-------");        }        @Override        public void sessionCreated(IoSession session) throws Exception {            super.sessionCreated(session);            Log.d(TAG,"sessionCreated------" + session);        }        @Override        public void sessionOpened(IoSession session) throws Exception {            super.sessionOpened(session);            Log.d(TAG,"sessionOpened---------");        }    }    /**     * 建立一個監聽器實現mina的IoServiceListener介面，裡面的方法可以不用實現     */    private class IoListener implements IoServiceListener{        @Override        public void serviceActivated(IoService ioService) throws Exception {        }        @Override        public void serviceIdle(IoService ioService, IdleStatus idleStatus) throws Exception {        }        @Override        public void serviceDeactivated(IoService ioService) throws Exception {        }        @Override        public void sessionCreated(IoSession ioSession) throws Exception {        }        @Override        public void sessionClosed(IoSession ioSession) throws Exception {        }        @Override        public void sessionDestroyed(IoSession ioSession) throws Exception {        }    }}

三.對於粘包的處理  是建立臨時緩衝區來處理

 public synchronized void Decode(char[] data)    {        for (int i = 0; i < data.length; i++)        {            char byt = data[i];            this.temp.add(byt);            if (byt == '"')            {                if (!this.instring)                {                    this.instring = true;                }                else if (getPrev() != '\\')                {                    this.instring = false;                }            }            if (instring) continue;            if (byt == '}' || byt == ']')            {                end = true;                left--;            }            if (byt == '{' || byt == '[')            {                left++;            }            if ((left) < 0)            {                temp.clear();                this.instring = false;                this.left = 0;                continue;            }            if (end && left == 0)            {                end = false;                char[] p =new char[temp.size()];                // temp.toArray(p) ;//完整協議包                 for(int j =0; j< temp.size();j++){                     p[j] = temp.get(j);                  }                                   // todo : log//                if (OnPackageHanded != null) {//                    OnPackageHanded(package);//                }                 if(this.HandledPackage.size()>100){                                          this.HandledPackage.poll();                 }                this.HandledPackage.offer(p);                temp.clear();                this.instring = false;                this.left = 0;                continue;            }        }    }