php服务端与android客户端socket通信

php写的服务端和java写的android客户端通过socket通信

php服务端的代码要在类似apache的服务器中运行，代码如下：

<?php   
    //确保在连接客户端时不会超时   
    set_time_limit(0);   
      
    //设置IP和端口号   
    $address='127.0.0.1';   
    $port=3333;    //调试的时候，可以多换端口来测试程序！   
      
    //创建一个SOCKET   
    if(($sock=socket_create(AF_INET,SOCK_STREAM,SOL_TCP))<0)   
    {   
    echo "socket_create() 失败的原因是:".socket_strerror($sock)."<br>";   
    }   
      
    //绑定到socket端口   
    if(($ret=socket_bind($sock,$address,$port))<0)   
    {   
    echo "socket_bind() 失败的原因是:".socket_strerror($ret)."<br>";   
    }   
      
    //开始监听   
    if(($ret=socket_listen($sock,4))<0)   
    {   
    echo "socket_listen() 失败的原因是:".socket_strerror($ret)."<br>";   
    }   
      
    do {   
   		 if (($msgsock = socket_accept($sock)) < 0)   
   	     {   
   			 echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "/n"; 
   			 echo "/nThe Server is Stop……/n";
    		 break;   
   		 }   
      
   		 //发到客户端   
   		 $msg ="<font color=red>Welcome To Server!</font><br>";   
   		 socket_write($msgsock, $msg, strlen($msg));
   		 socket_close($msgsock);   
   		 
   		 echo "/nThe Server is running……/n";
   		 printf("/nThe Server is running……/n");
    } while (true);   
      
    socket_close($sock);   
?>

android客户端在同一台机器上的模拟器中运行，代码如下：

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class SocketTest extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        try {
        	
        	System.out.println("准备连接");
			Socket socket = new Socket("10.0.2.2", 3333);
			System.out.println("连接上了");
			
			Intent intent = new Intent();
			intent.setClass(SocketTest.this, ConnectActivity.class);
			SocketTest.this.startActivity(intent);			
			InputStream inputStream = socket.getInputStream();
			byte buffer[] = new byte[1024*4];
			int temp = 0;
			String res = null;
			//从inputstream中读取客户端所发送的数据
			System.out.println("接收到服务器的信息是：");
			
			while ((temp = inputStream.read(buffer)) != -1){
				System.out.println(new String(buffer, 0, temp));
				res += new String(buffer, 0, temp);
			}
			
			System.out.println("已经结束接收信息……");
			
			socket.close();
			inputStream.close();
			
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
        
    }
}

注：服务端的程序要先运行起来，然后运行客户端。这只是一个简单的socket通信。