[英]Determine Google Drive location with Qt/C++
本質上,這是這里問題的Qt / C ++變體:
我到目前為止已經嘗試了以下
QString gDrivePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation);
gDrivePath += "\\Google\\Drive\\sync_config.db";
bool result = QFile::copy(gDrivePath, "gdrive.db");
QFile gdrivefile("gdrive.db");
if(!gdrivefile.open(QIODevice::ReadOnly | QIODevice::Text)) {
QMessageBox::information(0, "Google Drive path read error", gdrivefile.errorString());
}
QTextStream gin(&gdrivefile);
gin.setCodec("ASCII");
while(!gin.atEnd()) {
qDebug() << gin.readLine().toLocal8Bit();
}
gdrivefile.close();
就像上面鏈接的問題中給出的那樣,該代碼復制了db文件,並嘗試逐行讀取它。 唯一的問題是,它正在從文件中跳過包含所需的“ local_sync_root_pathvalue”的數據塊
有任何想法嗎 ?
我最終使用來自qt的sql類來實現這一壯舉。
碼:
QString gDrivePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation);
gDrivePath += "\\Google\\Drive\\sync_config.db";
QFile::copy(gDrivePath, "gdrive.db");
QFile gDriveFile("gdrive.db");
if(!gDriveFile.open(QIODevice::ReadOnly)) {
qDebug() << "Error in opening Google Drive File" << gDriveFile.errorString();
}
else {
QSqlDatabase gDrivedb = QSqlDatabase::addDatabase("QSQLITE");
gDrivedb.setDatabaseName("gdrive.db");
if (gDrivedb.open()) {
QSqlQuery query(gDrivedb);
if (query.exec("select * from data where entry_key='local_sync_root_path'")) {
while (query.next()) {
QString gDrivePath = query.value(2).toString().remove(0,4);
qDebug() << "Google Drive at - " << gDrivePath;
}
} else {
qDebug() << "Error in querying Google Drive db" << query.lastError();
}
}
else
qDebug() << "Error in Opening Google Drive db";
gDriveFile.close();
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.