Qt进程间双向通信（QLocalSocket和QLocalServer）实现_qlocalsocket 双向通信

Qt环境：Qt4

先上代码

Client:  mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QLocalSocket>
 
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
    
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
    
private slots:
    void on_pushButtoLinkServer_clicked();
 
    void OnReadyRead();
 
    void on_pushButtonSendMsg_clicked();
 
private:
    Ui::MainWindow *ui;
    QLocalSocket * m_pSocketReceive;
    QString m_serverName;
};
 
#endif // MAINWINDOW_H

mainwindow.cpp :

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow),
    m_pSocketReceive(NULL),
    m_serverName("ServerName")
{
    ui->setupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::on_pushButtoLinkServer_clicked()
{
    if(NULL == m_pSocketReceive)
    {
        m_pSocketReceive = new QLocalSocket(this);
        m_pSocketReceive->connectToServer(m_serverName);
 
//        connect(m_pSocketReceive,SIGNAL(connected()),this,SLOT(OnClientConnectSuccess()));
        connect(m_pSocketReceive,SIGNAL(readyRead()),this,SLOT(OnReadyRead()));
    }
}
 
void MainWindow::OnReadyRead()
{
    if(m_pSocketReceive)
    {
        QDataStream tempReadDataStream(m_pSocketReceive);
        tempReadDataStream.setVersion(QDataStream::Qt_4_8);