假设我有一个这样的 XML 文件:
<?xml version="1.0" encoding="utf-8"?>
<name>
<id>1</id>
</name>
如何解析它并获取 id
的值?
std::string id = ...;
最佳答案
像这样的东西会起作用:
xmlFile = new QFile("xmlFile.xml");
if (!xmlFile->open(QIODevice::ReadOnly | QIODevice::Text)) {
QMessageBox::critical(this,"Load XML File Problem",
"Couldn't open xmlfile.xml to load settings for download",
QMessageBox::Ok);
return;
}
xmlReader = new QXmlStreamReader(xmlFile);
//Parse the XML until we reach end of it
while(!xmlReader->atEnd() && !xmlReader->hasError()) {
// Read next element
QXmlStreamReader::TokenType token = xmlReader->readNext();
//If token is just StartDocument - go to next
if(token == QXmlStreamReader::StartDocument) {
continue;
}
//If token is StartElement - read it
if(token == QXmlStreamReader::StartElement) {
if(xmlReader->name() == "name") {
continue;
}
if(xmlReader->name() == "id") {
qDebug() << xmlReader->readElementText();
}
}
}
if(xmlReader->hasError()) {
QMessageBox::critical(this,
"xmlFile.xml Parse Error",xmlReader->errorString(),
QMessageBox::Ok);
return;
}
//close reader and flush file
xmlReader->clear();
xmlFile->close();
关于c++ - 在 Qt 中解析 XML 文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3092387/