qt_c++_xml存这种复杂类型

news/2024/10/8 0:54:14/
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demo，迅雷链接。或者我主页上传的资源
链接：https://pan.xunlei.com/s/VO8bIvYFfhmcrwF-7wmcPW1SA1?pwd=nrp4#
复制这段内容后打开手机迅雷App，查看更方便
在这里插入图片描述

#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>#include <QTextCodec>
#include <QFile>
#include <QDomDocument>
#include <QTextStream>QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACEtypedef struct
{QString num_name;QString subFcParaName;double workMin;double workMax;}attachedCondition;class ConditionClass
{
public:ConditionClass(){};~ConditionClass(){};QString fcParaName;double earlyMin;double earlyMax;double alarmMin;double alarmMax;QList<attachedCondition>attached_contidition_;};class MainWindow : public QMainWindow
{Q_OBJECTpublic:MainWindow(QWidget *parent = nullptr);~MainWindow();void removeNode(QString xml_path,QString node_name);void updateNode(QString xml_path,QList<ConditionClass>all_condition_);void loadXml(QString xml_path);void createXML(QString filePath);QDomElement createAttributrNode(QDomDocument &doc,QString attribute_value,QString node_name);QDomElement createNode(QDomDocument &doc,QString value,QString node_name);QDomElement createNode(QDomDocument &doc,double value,QString node_name);void appendXml(QDomDocument &doc,QDomElement &root,QList<ConditionClass>all_condition_);//这是要存进去的数据QList<ConditionClass>all_condition_;//这是要读取出来的数据QList<ConditionClass>read_all_data_;private:Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QDebug>
MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{ui->setupUi(this);ConditionClass it;it.fcParaName="油压";it.earlyMin=55;it.earlyMax=66;it.alarmMax=88;it.alarmMin=77;attachedCondition at;at.num_name="附属1";at.subFcParaName="高度表";at.workMin=5;at.workMax=6;it.attached_contidition_.append(at);attachedCondition at0;at0.num_name="附属2";at0.subFcParaName="液压油温度";at0.workMin=5;at0.workMax=6;it.attached_contidition_.append(at0);ConditionClass it0;it0.fcParaName="1发N1";it0.earlyMin=55;it0.earlyMax=66;it0.alarmMax=88;it0.alarmMin=77;attachedCondition at00;at00.num_name="附属1";at00.subFcParaName="机油温度";at00.workMin=5;at00.workMax=6;it0.attached_contidition_.append(at00);all_condition_.append(it);all_condition_.append(it0);QString path= "C:/Users/36075/Desktop/ycn_xml/xml_ycn/warnRuler.xml";createXML(path);removeNode(path,"1发N1");removeNode(path,"油压");updateNode( path,all_condition_);loadXml(path);}MainWindow::~MainWindow()
{delete ui;
}/*** @brief 创建一个xml文档* @param 路径* @param 基本参数*/
void MainWindow::createXML(QString filePath)
{QFile file(filePath);bool isOk = file.open(QIODevice::ReadWrite);if(file.size()!=0){return;}QDomDocument doc;QDomProcessingInstruction instruction;instruction=doc.createProcessingInstruction("xml","version=\"1.0\" encoding=\"UTF-8\"");doc.appendChild(instruction);QDomElement root = doc.createElement("root");doc.appendChild(root);appendXml(doc,root,this->all_condition_);//   appendXml(doc,root,this->all_condition_);QTextStream stream(&file);stream.setCodec("UTF_8");doc.save(stream,4,QDomNode::EncodingFromTextStream);file.close();}void MainWindow::loadXml(QString xml_path)
{QFile file(xml_path);if(!file.open(QFile::ReadOnly | QFile::Text)){return;}QString strError;int errorLine;int errorColumn;QDomDocument doc;if(!doc.setContent(&file, false, &strError, &errorLine, &errorColumn)){return;}QDomElement root = doc.documentElement();if(root.tagName() == "root"){QDomNode first = root.firstChild();while(!first.isNull()){ConditionClass cc;if(first.toElement().tagName() == "主参数"){QString str = first.toElement().attribute("主参数");qDebug()<<str;cc.fcParaName=str;QDomNode node = first.firstChild();while(!node.isNull()){if(node.toElement().tagName() == "earlyMin"){QString earlyMin = node.toElement().text();qDebug()<<earlyMin;cc.earlyMin=earlyMin.toDouble();}if(node.toElement().tagName() == "earlyMax"){QString earlyMax = node.toElement().text();qDebug()<<earlyMax;cc.earlyMax=earlyMax.toDouble();}if(node.toElement().tagName() == "alarmMax"){QString alarmMax = node.toElement().text();qDebug()<<alarmMax;cc.alarmMax=alarmMax.toDouble();}if(node.toElement().tagName() == "alarmMin"){QString alarmMin = node.toElement().text();qDebug()<<alarmMin;cc.alarmMin=alarmMin.toDouble();}if(node.toElement().tagName() == "附属"){//访问附属下面的子节点QString attri = node.toElement().attribute("附属");qDebug()<<attri;QDomNode attrinode = node.firstChild();while(!attrinode.isNull()){attachedCondition atc;//附属1里面的子节点内容访问一下qDebug()<<attrinode.toElement().tagName();atc.num_name=attrinode.toElement().tagName();QDomNode attrinode1 = attrinode.firstChild();while(!attrinode1.isNull()){if(attrinode1.toElement().tagName() == "参数名"){QString diany = attrinode1.toElement().text();qDebug()<<diany;atc.subFcParaName=diany;}if(attrinode1.toElement().tagName() == "workMin"){QString diany = attrinode1.toElement().text();qDebug()<<diany;atc.workMin=diany.toDouble();}if(attrinode1.toElement().tagName() == "workMax"){QString diany = attrinode1.toElement().text();qDebug()<<diany;atc.workMax=diany.toDouble();}attrinode1=attrinode1.nextSibling();}cc.attached_contidition_.append(atc);attrinode = attrinode.nextSibling();}}node = node.nextSibling();}}this->read_all_data_.append(cc);first = first.nextSibling();}}file.close();}/*** @brief 打开路径下的xml文档，删除指定名称的节点* @param 路径* @param 基本参数*/
void MainWindow::removeNode(QString xml_path,QString node_name)
{QFile file(xml_path);if(!file.open(QFile::ReadOnly|QFile::WriteOnly | QFile::Text)){return;}QString strError;int errorLine;int errorColumn;QDomDocument doc;if(!doc.setContent(&file, false, &strError, &errorLine, &errorColumn)){return;}file.close();QDomElement root = doc.documentElement();if(root.tagName() == "root"){QDomNode first = root.firstChild();while(!first.isNull()){if(first.toElement().attribute("主参数") ==node_name){root.removeChild(first);//  break;}first = first.nextSibling();}}if(!file.open(QFile::WriteOnly|QFile::Truncate))return;QTextStream out_stream(&file);doc.save(out_stream,4); //缩进4格file.close();}/*** @brief 打开xml文档，然后往里面写数据* @param* @param*/
void MainWindow::updateNode(QString xml_path,QList<ConditionClass>all_condition_)
{QFile file(xml_path); //相对路径、绝对路径、资源路径都可以if(!file.open(QFile::ReadOnly))return;//增加一个一级子节点以及元素QDomDocument doc;if(!doc.setContent(&file)){file.close();return;}file.close();QDomElement root=doc.documentElement();if(all_condition_.isEmpty()){return;}for(auto it:all_condition_){auto fcParaName=it.fcParaName;auto earlyMin= it.earlyMin;auto earlyMax=  it.earlyMax;auto alarmMax=  it.alarmMax;auto alarmMin=  it.alarmMin;auto main_para= createAttributrNode(doc,fcParaName,"主参数");root.appendChild(main_para);main_para.appendChild(createNode(doc,earlyMin,"earlyMin"));main_para.appendChild(createNode(doc,earlyMax,"earlyMax"));main_para.appendChild(createNode(doc,alarmMax,"alarmMax"));main_para.appendChild(createNode(doc,alarmMin,"alarmMin"));if(!it.attached_contidition_.isEmpty()){auto attribute_para=createAttributrNode(doc,"附属","附属");main_para.appendChild(attribute_para);for(auto item:it.attached_contidition_){int i=0;//QString attribute_para=tr("附属")+QString::number(i);QString num_name=item.num_name;QString subFcParaName=item.subFcParaName;double workMin=item.workMin;double workMax=item.workMax;auto at= createAttributrNode(doc,num_name,num_name);at.appendChild(createNode(doc,subFcParaName,"参数名"));at.appendChild(createNode(doc,workMin,"workMin"));at.appendChild(createNode(doc,workMax,"workMax"));attribute_para.appendChild(at);i++;}}}if(!file.open(QFile::WriteOnly|QFile::Truncate))return;QTextStream out_stream(&file);doc.save(out_stream,4); //缩进4格file.close();}void MainWindow::appendXml(QDomDocument &doc,QDomElement &root,QList<ConditionClass>all_condition_)
{for(auto it:all_condition_){auto fcParaName=it.fcParaName;auto earlyMin= it.earlyMin;auto earlyMax=  it.earlyMax;auto alarmMax=  it.alarmMax;auto alarmMin=  it.alarmMin;auto main_para= createAttributrNode(doc,fcParaName,"主参数");root.appendChild(main_para);main_para.appendChild(createNode(doc,earlyMin,"earlyMin"));main_para.appendChild(createNode(doc,earlyMax,"earlyMax"));main_para.appendChild(createNode(doc,alarmMax,"alarmMax"));main_para.appendChild(createNode(doc,alarmMin,"alarmMin"));if(!it.attached_contidition_.isEmpty()){auto attribute_para=createAttributrNode(doc,"附属","附属");main_para.appendChild(attribute_para);for(auto item:it.attached_contidition_){int i=0;//QString attribute_para=tr("附属")+QString::number(i);QString num_name=item.num_name;QString subFcParaName=item.subFcParaName;double workMin=item.workMin;double workMax=item.workMax;auto at= createAttributrNode(doc,num_name,num_name);at.appendChild(createNode(doc,subFcParaName,subFcParaName));at.appendChild(createNode(doc,workMin,"workMin"));at.appendChild(createNode(doc,workMax,"workMax"));attribute_para.appendChild(at);i++;}}}}
/*** @brief 创建属性节点* @param* @param*/
QDomElement MainWindow::createAttributrNode(QDomDocument &doc,QString attribute_name,QString node_name)
{QDomElement it = doc.createElement(node_name);it.setAttribute(node_name,attribute_name);return it;
}/*** @brief 创建节点* @param* @param*/
QDomElement MainWindow::createNode(QDomDocument &doc,QString value,QString node_name)
{QDomElement it = doc.createElement(node_name);QDomText text_2 = doc.createTextNode(value);it.appendChild(text_2);return it;
}/*** @brief 创建节点* @param* @param*/
QDomElement MainWindow::createNode(QDomDocument &doc,double value,QString node_name)
{QDomElement it = doc.createElement(node_name);QDomText text_2 = doc.createTextNode(QString::number(value));it.appendChild(text_2);return it;
}

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