Android实现远程控制PC(Android[客户端]+Qt[服务器端])

    由于本人没有无线路由器，因此用Win7自带的虚拟wifi让手机上网：Win7虚拟wifi

    但是，电脑不在我的房间，因此每天晚上在床上玩完手机还要下床去关电脑，让很懒很懒的本人很不爽，因此自己尝试着做了一个远程控制。

    软件客户端运行在Android设备上（我的手机是Android的），服务器端运行在我的Win7本本上。客户端用的是Android平台应用编程，服务器端用的是Qt编写的。

    首先设置好默认端口，然后设置控制方法，为了方便起见，这里直接利用标准C中的system接口（调用shell，Win7下就是cmd命令提示符了）。客户端发送命令给服务器，服务器直接执行命令，并将标准输出返回给客户端。

    下面看一些代码，具体代码可以到这里下载：工程源代码

    服务器端：

    头文件：

    mainwindow.h

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <QtNetwork/QTcpServer>#include <QTextDocument>#include "server.h"namespace Ui {class MainWindow;}class MainWindow : public QMainWindow{    Q_OBJECT    public:    explicit MainWindow(QWidget *parent = 0);    QTextDocument *textDocument;    Server *server;    ~MainWindow();public slots:    void getConnect();    void execCommand(const char *command,int length,const char *add,int clientCode);    void showText(const char *text);signals:    void writeFile(int clientCode);    private:    Ui::MainWindow *ui;};#endif // MAINWINDOW_H

    server.h

#ifndef SERVER_H#define SERVER_H#include <QTextDocument>#include <QTcpServer>class MainWindow;class Server:public QTcpServer{    Q_OBJECTprivate:    int port;    MainWindow *mainWindow;    QHostAddress hostAddress;    int clientNum;        //已建立的客户端连接数public:    Server(MainWindow *m,int p,QHostAddress a);    void incomingConnection(int handle);signals:    void printText(const char *text);};#endif // SERVER_H

    serverthread.h

#ifndef SERVERTHREAD_H#define SERVERTHREAD_H#include <QThread>#include <QTcpSocket>#include "mainwindow.h"class ServerThread:public QThread{    Q_OBJECTprivate:    QTcpSocket *socket;    MainWindow *mainWindow;    int clientCode;public:    ServerThread(int socketDescriptor,QObject *parent,MainWindow *m,int clientCode);    void run();signals:    void newCommand(const char *str,const int length,const char *add,int clientCode);public slots:    void receiveData();    void readFile(int cC);};#endif // SERVERTHREAD_H

    源代码：

    main.cpp

#include <QtGui/QApplication>#include "mainwindow.h"int main(int argc, char *argv[]){    QApplication a(argc, argv);    MainWindow w;    w.show();    return a.exec();}

    mainwindow.cpp

#include <QtNetwork/QHostAddress>#include <QTextDocument>#include <string>#include <cstring>#include <string.h>#include "mainwindow.h"#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent) :    QMainWindow(parent),    ui(new Ui::MainWindow){    ui->setupUi(this);    server=new Server(this,5648,QHostAddress::Any);   //初始化服务器}MainWindow::~MainWindow(){    delete ui;}void MainWindow::getConnect(){    QTextDocument *textDocumentM=new QTextDocument(QString("new connect !"),this);    ui->textEdit->setDocument(textDocumentM);    server->nextPendingConnection();}void MainWindow::execCommand(const char *command,int length,const char *add, int clientCode){    QTextDocument *textDocumentC=new QTextDocument(QString("message"),this);    char *commandStr=new char[length+15];    strcpy(commandStr,command);    char *para=commandStr+length;    char *c=" > temp.txt";        //将结果重定向到一个临时文件    strcpy(para,c);    system(commandStr);                        //执行shell命令    emit writeFile(clientCode);    ui->textEdit->setDocument(textDocumentC);}void MainWindow::showText(const char *text){    QTextDocument *textDocumentT=new QTextDocument(QString(text),this);    ui->textEdit->setDocument(textDocumentT);}

    server.cpp

#include "server.h"#include "serverthread.h"Server::Server(MainWindow *m,int p,QHostAddress a){    this->hostAddress=a;    this->port=p;    this->mainWindow=m;    this->clientNum=0;             //初始化客户连接数    this->QTcpServer::listen(hostAddress,quint16(port));    connect(this,SIGNAL(printText(const char*)),this->mainWindow,SLOT(showText(const char*)));}void Server::incomingConnection(int handle){    char ch[]="new connection !";       emit printText(ch);    ServerThread *thread=new ServerThread(handle,this,mainWindow,this->clientNum);  //每建立一个连接，都会开启一个服务线程，线程有客户编号    this->clientNum++;    thread->start();}

serverthread.cpp

#include "serverthread.h"#include <QFile>#define COMMAND_SIZE 50ServerThread::ServerThread(int socketDescriptor,QObject *parent,MainWindow *m,int c):QThread(parent){    this->mainWindow=m;    this->clientCode=c;    socket=new QTcpSocket(parent);    socket->setSocketDescriptor(socketDescriptor);}void ServerThread::run(){    this->connect(socket,SIGNAL(readyRead()),this,SLOT(receiveData()));    connect(this,SIGNAL(newCommand(const char*,int,const char*,int)),this->mainWindow,SLOT(execCommand(const char*,int,const char*,int)));    connect(this->mainWindow,SIGNAL(writeFile(int)),this,SLOT(readFile(int)));    exec();}void ServerThread::receiveData(){    int left=socket->bytesAvailable();    char *command=new char[COMMAND_SIZE];    while(left>0)    {        int read=socket->readLine(command,COMMAND_SIZE);  //读取原始命令        emit newCommand(command,read,"test",this->clientCode);        left-=read;    }}//读取临时文件中的标准输出信息并写入socket传回给客户端void ServerThread::readFile(int cC){    if(cC==this->clientCode)    {        QFile *file=new QFile("temp.txt");        if(file->open(QIODevice::ReadWrite))        {            char *buffer=new char[100];            int length;            while((length=file->read(buffer,100))>0)            {                socket->write(buffer,length);            }        }        socket->flush();        file->close();        system("del temp.txt");//删除临时文件    }}

客户端：

只有一个Acitvity

MainActivity.java

package com.tobacco.phonetest;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.Socket;import java.net.UnknownHostException;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.util.Log;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class MainActivity extends Activity implements OnClickListener,Runnable{private Button button;private Button clear;private EditText editText;private TextView tv;private Socket socket;private PrintWriter pw;private BufferedReader br;//private InputStream is;private Handler handler;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        handler=new Handler();        button=(Button)findViewById(R.id.button);        clear=(Button)findViewById(R.id.clear);        button.setOnClickListener(this);        clear.setOnClickListener(this);        editText=(EditText)findViewById(R.id.edittext);        tv=(TextView)findViewById(R.id.textView);        try {//socket=new Socket("tobacco5648.xicp.net",5648); //我的pc域名        socket=new Socket("192.168.137.1",5648);   //建立socket，这里应该根据pc的ip地址进行修改        //socket=new Socket("www.baidu.com",80);} catch (UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();Log.e("socket","unknown host");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();Log.e("socket","io execption");}        if(socket==null){        Log.e("socket","null");        }        else        try {pw=new PrintWriter(socket.getOutputStream());br=new BufferedReader(new InputStreamReader(socket.getInputStream(),"gbk"));String remote=socket.getInetAddress().getHostAddress();String self=socket.getLocalAddress().getHostAddress();tv.setText("connected!"+"\r\n"+"remote:"+remote+"\r\n"+"local:"+self+"\r\n");//is=socket.getInputStream();if(pw!=null&&br!=null){new Thread(this).start();}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.activity_main, menu);        return true;    }public void onClick(View view) {if(view==button){String str;str=editText.getText().toString();pw.print(str);pw.flush();}else if(clear==view){tv.setText("");}}public void run() {while(true){try {String str;while((str=br.readLine())!=null){final String s=str;handler.post(new Runnable(){public void run() {tv.setText(tv.getText()+s+"\r\n");}});}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}    }