我正在尝试读取具有嵌套标记的xml文件，下面是我的xml文件
<?xml version="1.0" encoding="UTF-8" ?>
<root>
<Header>
<Hvers>1.0.0.0</Hvers>
<SvVers>3.1.0.0</SvVers>
<CID>d3911</CstID>
<CrID>d3911</CarID>
<DevID>cdp1</DevID>
<SrvNm>VrsService</SrvNm>
<Date>170516</Date>
<Time>134838</Time>
<PrjInf>none</PrjInf>
</Header>
<Body>
<TBA>
<tbaData uri="hardware.i2@mcg1.d3911.d3911">
<unit2 version="1" release="0" update="0" evolution="0" >
<unit_type>DCY 1550A</unit_type>
<article_number>3EST000225-5711</article_number>
<production_date>2013-11-27</production_date>
<delivery_revision>06A</delivery_revision>
<present_revision>06A</present_revision>
<rev_date>2013-11-27</rev_date>
<made_the_last_rev>B21</made_the_last_rev>
<serial_number>B21-13464250019</serial_number>
<eth_addresses>
<eth_address>00:06:30:03:2D:A2</eth_address>
<eth_address>00:06:30:03:EE:02</eth_address>
</eth_addresses>
<boards>
<board>
<board_type>DTBB 411F</board_type>
<article_number>3EST000218-1223</article_number>
<production_date>2013-11-27</production_date>
<delivery_revision>03A</delivery_revision>
<present_revision>03A</present_revision>
<rev_date>2013-11-27</rev_date>
<made_the_last_rev>B21</made_the_last_rev>
<serial_number>B21-13445430010</serial_number>
</board>
<board>
<board_type>DTPC 401B</board_type>
<article_number>3EST000212-2418</article_number>
<production_date>2013-11-20</production_date>
<delivery_revision>05A</delivery_revision>
<present_revision>05A</present_revision>
<rev_date>2013-11-20</rev_date>
<made_the_last_rev>B21</made_the_last_rev>
<serial_number>B21-13459400179</serial_number>
<eth_addresses>
<eth_address>00:06:30:03:2D:A2</eth_address>
</eth_addresses>
</board>
<board>
<board_type>DTMB 403A</board_type>
<article_number>3EST000218-1237</article_number>
<production_date>2013-11-09</production_date>
<delivery_revision>02A</delivery_revision>
<present_revision>02A</present_revision>
<rev_date>2013-11-09</rev_date>
<made_the_last_rev>B21</made_the_last_rev>
<serial_number>B21-13447030057</serial_number>
<eth_addresses>
<eth_address>00:06:30:03:EE:02</eth_address>
</eth_addresses>
</board>
</boards>
</unit2>
</tbaData>
<tbaData uri="software.i1@AMP1.d3911.d3911">
<system><component><type>Application</type><name>SCINumErr</name> <version>0.0.0.0</version><created>0</created></component></system>
</tbaData>
</TBA>
</Body>
</root>
我想要阅读标签，但缺少结构化的方式来阅读和填充我的结构。
我正在读取xml文件，如下所示，它返回所有标签而不是我想循环通过1个标签，然后开始下一个，例如，我想读取标签标题并保存在结构中，然后循环遍历正文等。在下面的代码中，我不明白Header何时开始以及何时出现身体等。
void test::readXml()
{
QFile file("C:/VRC_Collector/VRS_Collector/deploy/all/conf/dpa/VRS_Collector/vrsdata.xml");
if(!file.open(QIODevice::ReadOnly | QFile::Text)){
qDebug()<<"File Openning Error"<< file.errorString();
}
QXmlStreamReader reader(&file);
reader.readNext();
while(!reader.atEnd()){
// reader.readNextStartElement();
qDebug()<< "root1" << reader.name();
if(reader.readNextStartElement()){
if(reader.name() == "root")
{
qDebug()<< "root";
reader.readNext();
}else if(reader.name() == "Header") {
qDebug()<< "header";
reader.readNext();
}
else if(reader.name() == "Body") {
qDebug()<< "Body";
reader.readNext();
}else if(reader.name() == "tbaData") {
qDebug()<< "tbaData";
reader.readNext();
} else {
qDebug()<< "else";
reader.readNext();
}
}
}
}
我希望我的问题清楚，我现在还没有把结构填入代码中，只使用了qDebug（）。
P.S上面的代码永远不会出现在“Body”和“tbaData”
中答案 0 :(得分：2)
最后我设法通过标签解析xml标签，下面是代码片段：
QXmlStreamReader reader;
QFile file("C:/data.xml");
if(!file.open(QIODevice::ReadOnly | QFile::Text)){
qDebug()<<"File Openning Error"<< file.errorString();
}
reader.setDevice(&file);
if(reader.readNextStartElement()) {
if(reader.name() == "root"){
qDebug()<<"Root";
while(reader.readNextStartElement()){
if(reader.name() == "Header"){
qDebug()<< "Header" << reader.name().toString();
while(reader.readNextStartElement()){
if(reader.name() == "DevID") {
qDebug()<< "DevID" << reader.readElementText();
} else {
reader.skipCurrentElement();
}
//qDebug()<< "Header Elements" << reader.name();
}
}
while(reader.readNextStartElement()) {
if(reader.name() == "Body") {
while(reader.readNextStartElement()) {
if(reader.name() == "TBA") {
while(reader.readNextStartElement()) {
if(reader.name() == "tbaData") {
qDebug()<< "unit_type" << reader.name();
while(reader.readNextStartElement()){
qDebug()<< "unit_type #1" << reader.name();
if(reader.name() == "unit2"){
while(reader.readNextStartElement()) {
if(reader.name() == "unit_type"){
qDebug()<< "unit_type" << reader.readElementText();
} else {
reader.skipCurrentElement();
}
}
}
qDebug()<< "Check 1" << reader.name();
reader.skipCurrentElement();
while(reader.readNextStartElement()) {
if(reader.name() == "tbaData") {
while(reader.readNextStartElement()) {
if(reader.name() == "system") {
while(reader.readNextStartElement()) {
reader.skipCurrentElement();
}
} else {
reader.skipCurrentElement();
}
}
while(reader.readNextStartElement()) {
if(reader.name() == "system2") {
while(reader.readNextStartElement()) {
if(reader.name() == "name") {
qDebug()<< "system2 " << reader.name();
} else {
reader.skipCurrentElement();
}
while(reader.readNextStartElement()) {
if(reader.name() == "edPackage") {
while(reader.readNextStartElement()) {
if(reader.name() == "name") {
qDebug()<< "reader ss" << reader.name();
} else {
reader.skipCurrentElement();
}
}
} else {
if(reader.name() == "sci") {
while(reader.readNextStartElement()) {
if(reader.name() == "name") {
while(reader.readNextStartElement()) {
qDebug()<< "sci name" << reader.name();
}
} else {
if(reader.name() == "component") {
while(reader.readNextStartElement()) {
qDebug()<< "sci name 1" << reader.name();
}
}
reader.skipCurrentElement();
}
}
}
qDebug()<< "reader ss1" << reader.name();
reader.skipCurrentElement();
}
}
}
}
}
reader.skipCurrentElement();
// qDebug()<< "Check 2" << reader.name();
}
}
reader.readNextStartElement();
}
}
}
}
}
}
}
}
}
}
希望对某人有所帮助。