Android 模拟器(JAVA)与C++ socket 通讯(IP设置)

原文：

android 模拟器使用的IP 地址为"127.0.0.1";使用PC机的端口号，在模拟器TCP连接调试之前必须使用android sdk 使用的工具进行一次端口映射。即使用 Sdk 中的Tools下abd 工具，在cmd 窗口中运行

E://install//android////android-sdk-windwows//tools//adb forward tcp:12581 tcp:31012" 前面目录为android sdk  Tools 所在目录。根据本机情况而定。
如果有多个设备（模拟器或者真机）连接在PC上，可以指定设备：
adb -s  
例如：adb -s HTC91245667 forward tcp:12581 tcp:31012

程序 部分编程环境vs 2005 android 采用eclipse 下 android 2.1版本。测试通过。以下是完整源码：

C++ 作为Client端

// Client.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include

#pragma comment(lib,"ws2_32.lib")

#define  MAX_BUF_SIZE 1024
#define  PORT_NUMBER 12581
int _tmain(int argc, _TCHAR* argv[])
{

    WSADATA wSaData;
    WORD dwSockVersion = MAKEWORD(2,2);
    if (0 != WSAStartup(dwSockVersion,&wSaData)) //协商版本号
    {
        printf("Arrange Version Failure");
        return -1;
    }

    SOCKET nSocket;
    nSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); //创建TCP socket
    if (INVALID_SOCKET == nSocket)
    {
        printf("invalid socket");
        WSACleanup();
        return -1;
    }

    sockaddr_in sa;
    sa.sin_family = AF_INET;
    sa.sin_addr.s_addr = inet_addr("127.0.0.1");
    sa.sin_port = htons(PORT_NUMBER);
    if ( 0 != connect( nSocket,( const SOCKADDR * )&sa, sizeof(sa) ) )
        return -1;

    char buf[MAX_BUF_SIZE] = {0};
    char tmp[MAX_BUF_SIZE] = {0};
    strcpy(tmp,"this is Client!");

    int nSend = send(nSocket, tmp, (int)strlen(tmp), 0);
    int nRecv = 0;
    nRecv = recv(nSocket, buf, MAX_BUF_SIZE, 0);
    if (nRecv > 0)
    {
        printf("%s/n",buf);
    }
    closesocket(nSocket);
    WSACleanup();
    return 0;
}

Android 模拟器，JAVA作为Serve端

package com.Android.SocketTest;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;


import android.app.Activity;
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);

        StartAcceptSocket();
    }
    private void StartAcceptSocket()
    {
        try
        {
            short nPort = 31012;
            ServerSocket m_pServerSocket = new ServerSocket(nPort); //初始化socket
            Socket pAccSocket = m_pServerSocket.accept(); //accept 阻塞等待
            new RunningThread(pAccSocket).start();  //新建一个线程进行数据收发

        }catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    public class RunningThread extends Thread
    {
        private Socket msocket = null;
        RunningThread(Socket s)
        {
            this.msocket = s;
        }
        public void run()
        {
            byte [] pRecbyte = new byte[1024];
            String sSend = "hello Client! this is Server";
            byte [] pSendByte = new byte[1024];
            pSendByte = sSend.getBytes();
            while(true)
            {
                try
                {
DataInputStream sRead = new DataInputStream(msocket.getInputStream());  //读取
int nRec = sRead.read(pRecbyte);
if(nRec > 0 )
{
//System.out.println("receive client message success！");
DataOutputStream    sWrite = new DataOutputStream(msocket.getOutputStream());
sWrite.write(pSendByte);  //发送
break;
}
                }catch(Exception e)
                {
e.printStackTrace();
                }
            }
        }
    }
}