概述

根据关键字，检索文件夹下的文件内容

代码

#include "widget.h"
#include "ui_widget.h"
#include <QDir>
#include <QtDebug>
#include <QFileDialog>
#include <QSettings>
#include <QProcess>
#include <QMessageBox>
#include <QDesktopServices>Widget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget)
{ui->setupUi(this);setWindowTitle("检索工具");ui->tableWidget->horizontalHeader()->setStretchLastSection(true); //设置充满表宽度QSettings *configIni = new QSettings("./config.ini", QSettings::IniFormat);ui->label_retrieval->setText(configIni->value("path").toString());delete configIni;
}Widget::~Widget()
{delete ui;
}bool Widget::FindFile(const QString &path)
{QDir dir(path);if (!dir.exists()) {return false;}dir.setFilter(QDir::Dirs | QDir::Files);dir.setSorting(QDir::DirsFirst);QFileInfoList list = dir.entryInfoList();int i = 0;do {QFileInfo fileInfo = list.at(i);if (fileInfo.fileName() == "." | fileInfo.fileName() == "..") {i++;continue;}bool bisDir = fileInfo.isDir();if (bisDir) {FindFile(fileInfo.filePath());} else {//qDebug() << "path:" <<fileInfo.path() << " name:" <<fileInfo.fileName();QFile file(fileInfo.filePath());if(file.open(QIODevice::ReadOnly)){int count = 0;while (!file.atEnd()){count++;QString str = file.readLine();if(str.contains(ui->lineEdit_retrieval->text())){m_num++;ui->tableWidget->setRowCount(m_num);ui->tableWidget->setItem(m_num-1,0,new QTableWidgetItem(fileInfo.filePath()));ui->tableWidget->setItem(m_num-1,1,new QTableWidgetItem(QString::number(count) +" | " + str));}}}file.close();}i++;} while (i < list.size());return true;
}void Widget::on_pushButton_retrieval_clicked()
{ui->label_retrieval->setText(QFileDialog::getExistingDirectory());QSettings *configIni = new QSettings("./config.ini", QSettings::IniFormat);configIni->setValue( "path" ,ui->label_retrieval->text());delete configIni;
}void Widget::on_pushButton_begin_clicked()
{m_num = 0;ui->tableWidget->setRowCount(0);FindFile(ui->label_retrieval->text());
}void Widget::on_pushButton_open_clicked()
{if(!ui->tableWidget->selectedItems().isEmpty()){QString str = ui->tableWidget->selectedItems().at(0)->text();QDesktopServices::openUrl(QUrl("file:///" + str, QUrl::TolerantMode));}else{QMessageBox::information(nullptr,"提示","请选中要打开的文件路径");}
}

源码