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【Qt】使用QProcess调用其它程序或脚本

2024-07-18 12:05:34   223人阅读

大概试了一下，还是不错的，不过字符编码问题还不太好解决：

代码：

#include "mainwindow.h"#include "ui_mainwindow.h"#include <QMessageBox>#include <QProcess>#include <QTextCodec>#include <QCloseEvent>MainWindow::MainWindow(QWidget *parent) :    QMainWindow(parent),    ui(new Ui::MainWindow){    ui->setupUi(this);    QTextCodec::setCodecForLocale(QTextCodec::codecForName("KOI8-R"));    ui->progressBar->setValue(0);}MainWindow::~MainWindow(){    delete ui;}void MainWindow::on_pushButton_clicked(){    process = new QProcess(this);    QStringList str;    str << "";    if (ui->pushButton->text() == "stop")    {        process->write("quit");        process->kill();        return;    }    QString exe = QApplication::applicationDirPath().append("/test.bat");    connect(process, SIGNAL(started()), this, SLOT(start_process()));    connect(process, SIGNAL(readyReadStandardOutput()), this, SLOT(start_read_output()));    connect(process, SIGNAL(readyReadStandardError()), this, SLOT(start_read_err_output()));    connect(process, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(finish_process(int, QProcess::ExitStatus)));    process->start(exe);    if (false == process->waitForStarted())    {        ui->textBrowser->append("this process can not be called.");    }    ui->pushButton->setText("stop");}void MainWindow::start_process(){    ui->progressBar->setVisible(true);    ui->progressBar->setValue(0);    //QMessageBox::information(this, "ok", "ok", QMessageBox::Ok);    ui->textBrowser->append(tr("process start"));}void MainWindow::finish_process(int exitCode, QProcess::ExitStatus exitStatus){    if (exitStatus == QProcess::NormalExit)    {        ui->textBrowser->append(tr("process exit normal"));    }    else    {        ui->textBrowser->append(tr("process exit crash"));    }    ui->progressBar->setValue(100);    ui->textBrowser->append("process finised");    ui->pushButton->setText("ok");}void MainWindow::start_read_output(){    QByteArray ba = process->readAllStandardOutput();    ui->textBrowser->append(ba);}void MainWindow::start_read_err_output(){    QByteArray ba = process->readAllStandardError();    ui->textBrowser->append("error: " + ba);}void MainWindow::closeEvent(QCloseEvent *event){    process->write("quit");    process->kill();    if(!process->waitForFinished(100))        return;    event->accept();}

 

 

头文件：

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <QProcess>namespace Ui {class MainWindow;}class MainWindow : public QMainWindow{    Q_OBJECTpublic:    explicit MainWindow(QWidget *parent = 0);    ~MainWindow();    QProcess* process;protected:    void closeEvent(QCloseEvent *);private slots:    void on_pushButton_clicked();    void start_process();    void start_read_output();    void start_read_err_output();    void finish_process(int exitCode, QProcess::ExitStatus exitStatus);private:    Ui::MainWindow *ui;};#endif // MAINWINDOW_H

 

最后执行结果：

 


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