Qt XQuery 到 QStringList
我正在尝试使用 QtXmlQuery 从 XML 中提取一些数据。我想将其放入 QStringList 中。我尝试以下操作：
QByteArray in = "this is where my xml lives";
QBuffer received;
received.setData(in);
received.open(QIODevice::ReadOnly);
QXmlQuery query;
query.bindVariable("data", &received);
query.setQuery(NAMESPACE //contains definition of the t namespace
"doc($data)//t:service/t:serviceID/text()");
QBuffer outb;
outb.open(QIODevice::ReadWrite);
QXmlSerializer s(query, &outb);
query.evaluateTo(&s);
qDebug() << "buffer" << outb.data(); //This works perfectly!
QStringList * queryResult = new QStringList();
query.evaluateTo(queryResult);
qDebug() << "string list" << *queryResult; //This gives me no output!
如您所见，当我通过 QXmlSerializer 将输出发送到 QBuffer 时，一切正常...但是当我尝试使用时我什么也没得到一个QStringList。
I'm trying to use QtXmlQuery to extract some data from XML. I'd like to put this into a QStringList. I try the following:
QByteArray in = "this is where my xml lives";
QBuffer received;
received.setData(in);
received.open(QIODevice::ReadOnly);
QXmlQuery query;
query.bindVariable("data", &received);
query.setQuery(NAMESPACE //contains definition of the t namespace
"doc($data)//t:service/t:serviceID/text()");
QBuffer outb;
outb.open(QIODevice::ReadWrite);
QXmlSerializer s(query, &outb);
query.evaluateTo(&s);
qDebug() << "buffer" << outb.data(); //This works perfectly!
QStringList * queryResult = new QStringList();
query.evaluateTo(queryResult);
qDebug() << "string list" << *queryResult; //This gives me no output!
As you can see, everything works fine when I send the output into a QBuffer via a QXmlSerializer... but I get nothing when I try to use a QStringList.
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尝试使用
string()而不是text()，它应该可以工作。Try to use
string()instead oftext(), it should work.