生成示例

<?xml version="1.0" encoding="UTF-8"?>
<sdk guid="##GUID"><in method="SetModbusParaInfo"><Device name="Device1"><mode updateCycUnit="ms" timeOutUnit="ms" resendTimes="3" timeOut="0" updateCyc="100" deviceId="1" value="2"/><eth netmask="255.255.255.0" ip="192.168.90.245" port="10000"/><serial serial="COM1" dataBits="8" baudRate="9600" parity="NONE" stopBit="1"/><register offset="1" func="0" name="Para0" dataFormat="0"/><register offset="1" func="0" name="Para1" dataFormat="0"/></Device></in>
</sdk>

头文件

#ifndef MANAGETREEXML_H
#define MANAGETREEXML_H
#include <QTreeWidget>
#include <QDomDocument>typedef struct RegisterPara {RegisterPara() {func_ = "0";offset_ = "1";dataFormat_ = "0";}QString func_;QString offset_;QString dataFormat_;
}RegisterPara;
Q_DECLARE_METATYPE(RegisterPara)typedef struct DevicePara {DevicePara() {mode_ = "0";deviceId_ = "1";updateCyc_ = "100";updateCycUnit_ = "ms";timeOut_ = "0";timeOutUnit_ = "ms";resendTimes_ = "3";serial_ = "COM1";baudRate_ = "9600";dataBits_ = "8";stopBit_ = "1";parity_ = "NONE";ipAddress_ = "192.168.90.245";netmask_ = "255.255.255.0";port_ = "10000";}QString mode_;QString deviceId_;QString updateCyc_;QString updateCycUnit_;QString timeOut_;QString timeOutUnit_;QString resendTimes_;QString serial_;QString baudRate_;QString dataBits_;QString stopBit_;QString parity_;QString ipAddress_;QString netmask_;QString port_;QHash<QString, RegisterPara*> registerPara_;
}DevicePara;
Q_DECLARE_METATYPE(DevicePara)enum ItemType {DeviceEnum = QTreeWidgetItem::UserType,RegisterEnum
};class ManageTreeXml
{
public:ManageTreeXml();bool SaveTreeXml(QTreeWidget* pTree, QString xmlPath);bool LoadTreeXml(QTreeWidget* pTree, QString xmlPath);private:bool showXml(QTreeWidget* pTree, QDomDocument *pDoc, bool bEditable);bool showXmlTreeNode(QTreeWidget* pTree, QDomNode domParent, QTreeWidgetItem *treeParent, bool bEditable);void setTreeNodeText(QDomNode Node, QTreeWidgetItem *treeNode, DevicePara* devicePara);void SaveItem(QDomElement& root,QTreeWidgetItem* item,QDomDocument& doc);
};#endif // MANAGETREEXML_H

源文件

#include "manageTreexml.h"
#include <QStack>
#include <QFile>
#include <QDebug>ManageTreeXml::ManageTreeXml()
{}bool ManageTreeXml::SaveTreeXml(QTreeWidget *pTree, QString xmlPath)
{QDomDocument doc;QDomProcessingInstruction head = doc.createProcessingInstruction("xml", "version=\"1.0\" encoding=\"UTF-8\"");doc.appendChild(head);//invisibleRootItem()函数并不是得到我们想要的这个顶层节点，它得到的是所有节点的最终根节点，因此，得到顶层节点需要自己写操作，下面是根据任意一个节点获取其可见顶层节点的代码QTreeWidgetItem *rootItem = pTree->invisibleRootItem(); //树的根节点QDomElement sdk = doc.createElement("sdk");sdk.setAttribute("guid", "##GUID");doc.appendChild(sdk);QDomElement root= doc.createElement("in");root.setAttribute("method", "SetModbusParaInfo");sdk.appendChild(root);SaveItem(root, rootItem, doc);QFile file(xmlPath);if (!file.open(QIODevice::WriteOnly)) {return false;}QString xml = doc.toString();QTextStream txtOutput(&file);txtOutput.setCodec("UTF-8");txtOutput<<xml;file.close();return true;
}bool ManageTreeXml::LoadTreeXml(QTreeWidget *pTree, QString xmlPath)
{pTree->clear();if(xmlPath.isEmpty()) {return false;}QDomDocument* doc = new QDomDocument;QFile fl(xmlPath);if(!doc->setContent(&fl)) {fl.close();return false;}fl.close();showXml(pTree, doc, false);return false;
}bool ManageTreeXml::showXml(QTreeWidget* pTree, QDomDocument* pDoc, bool bEditable)
{if(pDoc == NULL) {return false;}QDomElement docElem = pDoc->documentElement();QDomNode domIn = docElem.firstChild();if (!domIn.isNull()) {QDomElement inElem = domIn.toElement();QDomNodeList list = inElem.childNodes();for (int i = 0; i< list.count();i++){QDomNode node = list.at(i);QTreeWidgetItem* it = new QTreeWidgetItem(ItemType::DeviceEnum);if(bEditable) {it->setFlags(Qt::ItemIsEditable|Qt::ItemIsEnabled|Qt::ItemIsSelectable);}if ((node.toElement().tagName() == "Device")&& (node.toElement().attributes().contains("name"))) {it->setText(0, node.toElement().attribute("name"));pTree->addTopLevelItem(it);showXmlTreeNode(pTree, node.firstChild() ,it, bEditable);}}}pTree->expandAll();return true;
}bool ManageTreeXml::showXmlTreeNode(QTreeWidget* pTree, QDomNode domParent ,QTreeWidgetItem* treeParent, bool bEditable)
{DevicePara dp;while(!domParent.isNull()) {QTreeWidgetItem* it = new QTreeWidgetItem(ItemType::RegisterEnum);if(bEditable) {it->setFlags(Qt::ItemIsEditable|Qt::ItemIsEnabled|Qt::ItemIsSelectable);}setTreeNodeText(domParent ,it, &dp);if (domParent.toElement().tagName() == "register"&& (domParent.toElement().attributes().contains("name"))) {it->setText(0, domParent.toElement().attribute("name"));treeParent->addChild(it);} else {delete it;it = NULL;}// if(domParent.hasChildNodes()) {//     showXmlTreeNode(pTree, domParent.firstChild() ,it, bEditable);// }domParent = domParent.nextSibling();}treeParent->setData(0, Qt::UserRole, QVariant::fromValue(dp));return true;
}void ManageTreeXml::setTreeNodeText(QDomNode Node ,QTreeWidgetItem* treeNode, DevicePara* devicePara)
{if(treeNode == NULL) {return;}//qDebug() << "ItemText:" << Node.toElement().tagName();if (Node.toElement().tagName() == "mode") {devicePara->mode_ = Node.toElement().attribute("value");devicePara->deviceId_ = Node.toElement().attribute("deviceId");devicePara->updateCyc_ = Node.toElement().attribute("updateCyc");devicePara->updateCycUnit_ = Node.toElement().attribute("updateCycUnit");devicePara->timeOut_ = Node.toElement().attribute("timeOut");devicePara->timeOutUnit_ = Node.toElement().attribute("timeOutUnit");devicePara->resendTimes_ = Node.toElement().attribute("resendTimes");} else if (Node.toElement().tagName() == "eth") {devicePara->ipAddress_ = Node.toElement().attribute("ip");devicePara->netmask_ = Node.toElement().attribute("netmask");devicePara->port_ = Node.toElement().attribute("port");} else if (Node.toElement().tagName() == "serial") {devicePara->serial_ = Node.toElement().attribute("serial");devicePara->baudRate_ = Node.toElement().attribute("baudRate");devicePara->dataBits_ = Node.toElement().attribute("dataBits");devicePara->stopBit_ = Node.toElement().attribute("stopBit");devicePara->parity_ = Node.toElement().attribute("parity");} else if (Node.toElement().tagName() == "register") {RegisterPara tp;tp.func_ = Node.toElement().attribute("func");tp.offset_ = Node.toElement().attribute("offset");tp.dataFormat_ = Node.toElement().attribute("dataFormat");treeNode->setData(0, Qt::UserRole + 1, QVariant::fromValue(tp));}
}void ManageTreeXml::SaveItem(QDomElement& root, QTreeWidgetItem *item, QDomDocument& doc)
{QDomElement ele;int countChild = item->childCount();for (int i = 0; i < countChild; i++) {QTreeWidgetItem *childItem = item->child(i);if (childItem->type() == ItemType::DeviceEnum) {ele = doc.createElement("Device");QString itemTxt = childItem->text(0);ele.setAttribute("name", itemTxt);DevicePara dp = childItem->data(0, Qt::UserRole).value<DevicePara>();QDomElement mode = doc.createElement("mode");mode.setAttribute("value",dp.mode_);mode.setAttribute("deviceId", dp.deviceId_);mode.setAttribute("updateCyc", dp.updateCyc_);mode.setAttribute("updateCycUnit", dp.updateCycUnit_);mode.setAttribute("timeOut", dp.timeOut_);mode.setAttribute("timeOutUnit", dp.timeOutUnit_);mode.setAttribute("resendTimes", dp.resendTimes_);ele.appendChild(mode);QDomElement eth = doc.createElement("eth");eth.setAttribute("ip", dp.ipAddress_);eth.setAttribute("netmask", dp.netmask_);eth.setAttribute("port", dp.port_);ele.appendChild(eth);QDomElement serial = doc.createElement("serial");serial.setAttribute("serial", dp.serial_);serial.setAttribute("baudRate", dp.baudRate_);serial.setAttribute("dataBits", dp.dataBits_);serial.setAttribute("stopBit", dp.stopBit_);serial.setAttribute("parity", dp.parity_);ele.appendChild(serial);} else if(childItem->type() == ItemType::RegisterEnum) {ele = doc.createElement("register");RegisterPara dp = childItem->data(0, Qt::UserRole + 1).value<RegisterPara>();QString itemTxt = childItem->text(0);ele.setAttribute("name", itemTxt);ele.setAttribute("func", dp.func_);ele.setAttribute("offset", dp.offset_);ele.setAttribute("dataFormat", dp.dataFormat_);}root.appendChild(ele);SaveItem(ele,childItem,doc);}
}