前言
因为之前写了一个接收和发送文件的脚本,然后又需要获取进度,同步到进度条中。
效果:
使用正则匹配,获取命令行命令中的以下数据,然后同步到进度条
源码demo:
非完整代码:
cpp
#include <QRegularExpression>
#include <QProcess>
bool transferFile(const QString &localFilePath, const QString &remoteFilePath, const QString &host, const QString &username, const QString &password)
{
ui->sendProgressBar->setValue(0);
QRegularExpression re("(\\d{1,3})%"); // 匹配1到3位数字后面跟着一个百分号
QProcess process;
QString appPath;
if(sendFileShPath.endsWith("/")){
appPath = sendFileShPath + "send_file";
}else{
appPath = sendFileShPath + "/send_file";
}
QString cmd = QString("%6 %1 %2 %3 %4 %5")
.arg(username).arg(host).arg(password).arg(localFilePath).arg(remoteFilePath).arg(appPath);
process.start(cmd);
qDebug()<<QString("%1 send to %2").arg(localFilePath).arg(remoteFilePath);
// 当有标准输出可读时,读取并输出内容
QObject::connect(&process, &QProcess::readyRead, [&]() {
while (!process.atEnd()) {
QByteArray ba = process.readLine();
QString s = QString::fromUtf8(ba).trimmed();
QRegularExpressionMatch match = re.match(s);
if(match.captured(1) != ""){
int curNum = match.captured(1).toInt();
qDebug() << curNum <<"%";
ui->sendProgressBar->setValue(curNum);
}
}
});
if (!process.waitForStarted()) {
qDebug() << "Failed to start process.";
return false;
}
process.waitForFinished();
return true;
}
以上代码中的cmd,可以自行替换