Qt 实现对XML的读写操作实现信息管理

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QObject> #include <QDebug> #include <QtXml/QDomDocument> #include <QFile> #include <QIODevice> #include <QFileDialog> #include <QMessageBox> #include <QTextCodec> #include <QTableView> #include <QStandardItemModel> #include <QBrush> #include <QColor> #include <QByteArray> #include <QItemSelectionModel> #include <QModelIndex> #include <QAbstractItemView> #include <QComboBox> #include <QMap> #include <QMapIterator> QVector<QString> MainWindow::s_strVec; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), isOpenXmlFile(false), _xmlFilePath(""), findType(name_), ui(new Ui::MainWindow) { ui->setupUi(this); this->setMaximumSize(800,620); this->setMinimumSize(800,620); initTableViem(); initSlotfun(); s_strVec.append(QString("name")); s_strVec.append(QString("age")); s_strVec.append(QString("sid")); //setFindType(static_cast<FindType>(age_)); // qDebug()<<s_strVec.at(getFindType())<<" " // <<s_strVec.at(1)<<" " // <<s_strVec.at(2) // << "age" <<age_ ; } MainWindow::~MainWindow() { delete ui; isOpenXmlFile = false; } void MainWindow::on_readBut_clicked() { qDebug() << "dddd" ; QFileDialog filedia; _xmlFilePath = filedia.getOpenFileName(this,tr("Save File") ,QDir::currentPath() ,tr("textxml *.xml")); qDebug() <<"xmlFilePath is:"<< _xmlFilePath; if(_xmlFilePath.isEmpty()) { return ; } else { if(_xmlFilePath.endsWith(".xml") || _xmlFilePath.endsWith(".XML")) { openXmlFileToView();// openXmlFile(); } else { QMessageBox msg; msg.setText(tr("请则xml后缀的文件")); msg.exec(); } } } /** 写入单击事件的槽函数*/ void MainWindow::on_writeBut_clicked() { if(!pleaseOpenXmlFile()) { return; } qDebug() << "wwww" ; /* tablemViewmodel->setItem(0, 0, new QStandardItem("张三")); tablemViewmodel->setItem(0, 1, new QStandardItem("20120202")); tablemViewmodel->setItem(0, 2, new QStandardItem("男")); tablemViewmodel->setItem(0, 3, new QStandardItem("18")); tablemViewmodel->setItem(0, 4, new QStandardItem("土木学院")); */ /* tablemViewmodel->item(0,0)->setTextAlignment(Qt::AlignCenter); tablemViewmodel->item(0,1)->setTextAlignment(Qt::AlignCenter); tablemViewmodel->item(0,2)->setTextAlignment(Qt::AlignCenter); tablemViewmodel->item(0,3)->setTextAlignment(Qt::AlignCenter); //tablemViewmodel->item(0,4)->setTextAlignment(Qt::AlignCenter); tablemViewmodel->item(0,0)->setForeground(QBrush(QColor(255,0,0))); */ } /** 初始化tableview界面的*/ void MainWindow::initTableViem() { tablemViewmodel = new QStandardItemModel(); tablemViewmodel->setHorizontalHeaderItem(0, new QStandardItem(QObject::tr("ID"))); tablemViewmodel->setHorizontalHeaderItem(1, new QStandardItem(QObject::tr("姓名"))); tablemViewmodel->setHorizontalHeaderItem(2, new QStandardItem(QObject::tr("年龄"))); tablemViewmodel->setHorizontalHeaderItem(3, new QStandardItem(QObject::tr("性别"))); //tablemViewmodel->setHorizontalHeaderItem(4, new QStandardItem(QObject::tr("College"))); ui->showTableView->setModel(tablemViewmodel); ui->showTableView->setColumnWidth(0,200); ui->showTableView->setColumnWidth(1,150); ui->showTableView->setColumnWidth(2,100); ui->showTableView->setColumnWidth(3,148); //ui->showTableView->setColumnWidth(4,100); //设置表格为整行选择 ui->showTableView->setSelectionBehavior(QAbstractItemView::SelectRows); } /** 初始化槽函数*/ void MainWindow::initSlotfun() { connect(ui->deleteBut,SIGNAL(clicked()),this,SLOT(delOntTableViewItem())); //connect(ui->showTableView,SIGNAL(windowIconTextChanged(QString)),this,SLOT(modifyTableView(QString))); //connect(ui->showTableView,SIGNAL(entered(QModelIndex)),this,SLOT(modifyTableView(QString))); //the mune is connect save about slot connect(ui->action_xml_open,SIGNAL(triggered()),this,SLOT(on_readBut_clicked())); connect(ui->action_save_All,SIGNAL(triggered()),this,SLOT(on_saveAllBut_clicked())); connect(ui->action_save_add,SIGNAL(triggered()),this,SLOT(on_saveaddBut_clicked())); connect(ui->action_save_del,SIGNAL(triggered()),this,SLOT(on_savedelBut_clicked())); connect(ui->action_save_update,SIGNAL(triggered()),this,SLOT(on_saveupdateBut_clicked())); // about delete slot connect(ui->action_select_row,SIGNAL(triggered()),this,SLOT(on_deleteBut_clicked())); connect(ui->action_all_Row,SIGNAL(triggered()),this,SLOT(on_clearBut_clicked())); // about replace backout connect(ui->action_re_all , SIGNAL(triggered()),this,SLOT(clearAllMap())); // replace one of all ; connect(ui->action_re_add,SIGNAL(triggered()),this,SLOT(backoutAddMap())); connect(ui->action_re_del,SIGNAL(triggered()),this,SLOT(backoutDelMap())); connect(ui->action_re_update,SIGNAL(triggered()),this,SLOT(backoutUpdateMap())); //about refresh tableview info connect(ui->action_refresh,SIGNAL(triggered()),this,SLOT(refreshSlot())); connect(ui->comboBox,SIGNAL(currentIndexChanged(int)),this,SLOT(comboBoxSlect(int))); } /** 插入一空行进行编辑数据最后保存*/ void MainWindow::on_insertBut_clicked() { if(!pleaseOpenXmlFile()) { return; } int row = tablemViewmodel->rowCount(); if(0 == row) { QMessageBox msgBox; msgBox.setText("You haven't open the xml's file "); msgBox.setInformativeText("Do you want to save your changes?"); msgBox.setStandardButtons(QMessageBox::Open| QMessageBox::Cancel); msgBox.setDefaultButton(QMessageBox::Cancel); int ret = msgBox.exec(); switch (ret) { case QMessageBox::Open: on_readBut_clicked();//打开文件进行读取xml break; case QMessageBox::Cancel: break; default: break; } } else { // 插入一行空数据在最后一行的 tablemViewmodel->setItem(row,0,new QStandardItem("")); tablemViewmodel->setItem(row,1,new QStandardItem("")); tablemViewmodel->setItem(row,2,new QStandardItem("")); tablemViewmodel->setItem(row,3,new QStandardItem("")); qDebug()<<"insert but"<< row << "row + 1" << row +1; } } void MainWindow::on_deleteBut_clicked() { if(!pleaseOpenXmlFile()) { return; } //delTableViewItem(); delTableViewItem2();//删除的是界面的信息 //deleteToxmlFile("104");//删除的是xml文件的信息 } /** 删除tableview上的一个列表，并把相应的删除的信息保存到map中*/ void MainWindow::delOneTableViewSaveMap() { studentInfo student(_name,_age,_sex); deleteMap.insert(_id,student); // 插入数据 showMapInfo(deleteMap); } int MainWindow::returnOneCurrentSelectRow() { QMap<int, int> rowMap; QItemSelectionModel *model = ui->showTableView->selectionModel(); QModelIndexList sele = model->selectedIndexes(); foreach (QModelIndex index, sele) { qDebug() << " i:" <<index.row(); rowMap.insert(index.row(), 0); } int rowTonum; QMapIterator<int, int> rowMapIterator(rowMap); rowMapIterator.toBack(); while (rowMapIterator.hasPrevious()) { rowMapIterator.previous(); rowTonum = rowMapIterator.key(); return rowTonum; } return -1; } /** 显示 Map中�