Qt QtXml读取xml文件内容

时间:2023-03-08 19:51:06
Qt QtXml读取xml文件内容

Qt QtXml读取xml文件内容

xml文件内容

<?xml version="1.0" encoding="UTF-8"?>
<YG_RTLS>
<Anchor_list>
<Anchor z="0" id="1" MA_ID="" y="1789" x="50" ant_dly="" type="2"/>
<Anchor z="0" id="2" MA_ID="" y="1840" x="2970" ant_dly="" type="2"/>
<Anchor z="0" id="3" MA_ID="" y="70" x="2940" ant_dly="" type="2"/>
<Anchor z="0" id="4" MA_ID="" y="9" x="-19" ant_dly="" type="2"/>
</Anchor_list>
<Anchor_Group id="1" map_id="0" type="2">
<Member id="1"/>
<Member id="2"/>
<Member id="3"/>
<Member id="4"/>
</Anchor_Group>
<CONFIG version="1"/>
</YG_RTLS>
//读取基站配置文件数据
void readSysConfigFileData(QString sysConfigFileName)
{
//打开或创建文件
QFile xmlFile(sysConfigFileName);
if (!xmlFile.open(QFile::ReadOnly))
{
return;
} QDomDocument docXML;
if (!docXML.setContent(&xmlFile))
{
xmlFile.close();
return;
}
xmlFile.close(); QDomElement xmlRoot = docXML.documentElement(); //返回根节点
QDomNode domNode = xmlRoot.firstChild(); //获得第一个子节点
while (!domNode.isNull()) //如果节点不空
{
if (domNode.isElement()) //如果节点是元素
{
QDomElement domElement = domNode.toElement(); //转换为元素,注意元素和节点是两个数据结构,其实差不多
QDomNodeList list = domElementchildNodes();
for (int i = ; i<list.count(); i++) //遍历子元素,count和size都可以用,可用于标签数计数
{
QDomNode nodeIndex = list.at(i);
if (domNode.isElement())
{
QDomElement indexElement = nodeIndex.toElement();
if (indexElement.hasAttribute("x"))
{
qDebug() << nodeIndex.nodeName() << ":" << nodeIndex.toElement().attribute("id") << " " << nodeIndex.toElement().attribute("x") << " " << nodeIndex.toElement().attribute("y") << " " << nodeIndex.toElement().attribute("z"); } }
}
}
//下一个兄弟节点,nextSiblingElement()是下一个兄弟元素
domNode = domNode.nextSibling();
} }

输出

"Anchor" : "1" "50" "1789" "0"
"Anchor" : "2" "2970" "1840" "0"
"Anchor" : "3" "2940" "70" "0"
"Anchor" : "4" "-19" "9" "0"

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Qt QtXml读取xml文件内容