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！"); 

 return ; //不能打开文件 

 } 

 QDomDocument doc; 

 if (!doc.setContent(&xmlFile)) 

 { 

 qDebug("不能加载文件！"); 

 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 = doc.documentElement(); 

 QDomNodeList nodelist = root.childNodes(); 

 for(unsigned i = 0; i < nodelist.length(); ++i) 

 { 

  QString title = nodelist.item(i).toElement().attribute("title"); 

 if(! title.isEmpty()) 

 { 

 treeMenu = 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 = node.childNodes(); 

 for(unsigned i = 0; i < nodelist.length(); ++i) 

 { 

 QString title = nodelist.item(i).toElement().attribute("title"); 

 if(nodelist.item(i).toElement().attribute("isend") == "false") 

 { 

 rootItem = new QTreeWidgetItem(treeItem, QStringList(QString(title))); 

 rootList << rootItem; 

 treeMenu->expandAll(); //全部显示 

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

 } 

 else 

 { 

 QTreeWidgetItem *leaf = new QTreeWidgetItem(rootItem, QStringList(QString(title))); 

 rootItem->addChild(leaf); 

 } 

 } 

} 

四、xml文件 

<?xml version="1.0" encoding="utf-8"?> <menu> 

<menuType id="1" title="手机"> <listItem title="正在建设中..." isend = "false" url=""></listItem> </menuType> <menuType id="1" title="网络"> <listItem title="正在建设中..." isend = "false" url=""></listItem> </menuType> 

</menu> 

（编辑：李大同）

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