Socket for android 简单实例，socketandroid

Socket for android 简单实例，socketandroid

最近在实现socket通信，所以写个demo来简单实现下。我用了一种是原始的socket实现，另一种是MINA框架来实现的。

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

一.先看第一种方法

a)、创建Socket对象，指明需要连接的服务器的地址和端口。

b)、建立连接后，通过输出流向服务器发送请求信息。

c)、通过输入流获取服务器的响应信息。

d)、关闭响应资源

如下是主要代码

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 通信
 */
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 连接成功");
                            in = new BufferedReader(new InputStreamReader(socket.getInputStream(),"UTF-8"));
                            out =new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF-8"));
                            //发送一个消息
                            out.write("start");
                            out.flush();
                            //开启一个线程来读取服务器发来的消息
                            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("服务器发来的消息：" + 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.第二种方法是用MINA框架实现的

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框架实现socket通信
 * 由于接受消息会阻塞Android线程，所以开在子线程中（同时将其放在Service中，让其在后台运行）
 */
public class MyServiceTwo extends Service {
    private String TAG = "jiejie";
    private IoSession session = null;
    private MinaClientHandler minaClientHandler;