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 = 0; 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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