qt解析xml文件

一、打开文件

void ABC::openXml()  //打开XML文件

{

QFile xmlFile("./xml/menu.xml");

if(!xmlFile.open(QIODevice::ReadOnly))

{

qDebug("不能打开文件&＃xff01;");

return ; //不能打开文件

}

QDomDocument doc;

if (!doc.setContent(&xmlFile))

{

qDebug("不能加载文件&＃xff01;");

xmlFile.close();

return;

}

this->readXmlMenu(doc);

}

二、解析菜单类型

void ABC::readXmlMenu(QDomDocument doc) //解析菜单类型

{

QDomElement root &＃61; doc.documentElement();

QDomNodeList nodelist &＃61; root.childNodes();

for(unsigned i &＃61; 0; i < nodelist.length(); &＃43;&＃43;i)

{

QString title &＃61; nodelist.item(i).toElement().attribute("title");

if(! title.isEmpty())

{

treeMenu &＃61; new QTreeWidget(treeFrame);

treeMenu->setGeometry(0, i*150, 180, 150);

treeMenu->setColumnCount(1);

QStringList headers;

headers << title;

treeMenu->setHeaderLabels(headers); //设置标题

treeMenu->insertTopLevelItems(0, rootList);

this->readXmlItem(nodelist.item(i), treeMenu);

}

}

}

三、解析子菜单

void ABC::readXmlItem(QDomNode node, QTreeWidget *treeItem) //解析菜单子级

{

QDomNodeList nodelist &＃61; node.childNodes();

for(unsigned i &＃61; 0; i < nodelist.length(); &＃43;&＃43;i)

{

QString title &＃61; nodelist.item(i).toElement().attribute("title");

if(nodelist.item(i).toElement().attribute("isend") &＃61;&＃61; "false")

{

rootItem &＃61; new QTreeWidgetItem(treeItem, QStringList(QString(title)));

rootList << rootItem;

treeMenu->expandAll(); //全部显示

this->readXmlItem(nodelist.item(i), treeItem);

}

else

{

QTreeWidgetItem *leaf &＃61; new QTreeWidgetItem(rootItem, QStringList(QString(title)));

rootItem->addChild(leaf);

}

}

}

四、xml文件