Qt对WIN目录的操作（包括子目录）

 

// 测试目录文件如下：

// XML

// XML中朝

// XML中朝中朝近

// XML中朝中朝近中朝近.txt

// XML中朝文件3.txt

// XML中印

// XML中印中印内

// XML中印中印内中印内.txt

// XML中印文件2.txt

// XML文件1.txt

.pro

 1 QT       += core gui
 2 
 3 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 4 
 5 CONFIG += c++11
 6 
 7 # The following define makes your compiler emit warnings if you use
 8 # any Qt feature that has been marked deprecated (the exact warnings
 9 # depend on your compiler). Please consult the documentation of the
10 # deprecated API in order to know how to port your code away from it.
11 DEFINES += QT_DEPRECATED_WARNINGS
12 
13 # You can also make your code fail to compile if it uses deprecated APIs.
14 # In order to do so, uncomment the following line.
15 # You can also select to disable deprecated APIs only up to a certain version of Qt.
16 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
17 
18 SOURCES += 
19     main.cpp 
20     mainwindow.cpp
21 
22 HEADERS += 
23     mainwindow.h
24 
25 FORMS += 
26     mainwindow.ui
27 
28 # Default rules for deployment.
29 qnx: target.path = /tmp/$${TARGET}/bin
30 else: unix:!android: target.path = /opt/$${TARGET}/bin
31 !isEmpty(target.path): INSTALLS += target
View Code

main.cpp

 1 #include "mainwindow.h"
 2 
 3 #include <QApplication>
 4 
 5 int main(int argc, char *argv[])
 6 {
 7     QApplication a(argc, argv);
 8     MainWindow w;
 9     w.show();
10     return a.exec();
11 }
View Code

mainwindow.h

 1 #ifndef MAINWINDOW_H
 2 #define MAINWINDOW_H
 3 
 4 #include <QMainWindow>
 5 
 6 #include <QApplication>
 7 #include <QDir>
 8 #include <QDebug>
 9 #include <QStandardItemModel>
10 #include <QStandardItem>
11 
12 #include "AllFilesOrPathInDir.h"
13 
14 QT_BEGIN_NAMESPACE
15 namespace Ui { class MainWindow; }
16 QT_END_NAMESPACE
17 
18 class MainWindow : public QMainWindow
19 {
20     Q_OBJECT
21 
22 public:
23     MainWindow(QWidget *parent = nullptr);
24     ~MainWindow();
25 
26 private slots:
27     void on_pushButton_clicked();
28 
29     void on_pushButton_2_clicked();
30 
31     void on_pushButton_3_clicked();
32 
33     void on_pushButton_4_clicked();
34 
35     void on_pushButton_5_clicked();
36 
37     void on_pushButton_6_clicked();
38 
39     void on_pushButton_7_clicked();
40 
41     void on_pushButton_8_clicked();
42 
43     void on_pushButton_9_clicked();
44 
45 private:
46     Ui::MainWindow *ui;
47     AllFilesOrPathInDir *m_pAllFileDir;
48     QString m_sPath;
49     QStringList m_oFilePathNames;
50     QStandardItemModel *m_pItemModel;
51 
52 };
53 #endif // MAINWINDOW_H
View Code

mainwindow.cpp

  1 #include "mainwindow.h"
  2 #include "ui_mainwindow.h"
  3 
  4 // 测试目录文件如下：
  5 // XML
  6 // XML中朝
  7 // XML中朝中朝近
  8 // XML中朝中朝近中朝近.txt
  9 // XML中朝文件3.txt
 10 // XML中印
 11 // XML中印中印内
 12 // XML中印中印内中印内.txt
 13 // XML中印文件2.txt
 14 // XML文件1.txt
 15 
 16 MainWindow::MainWindow(QWidget *parent)
 17     : QMainWindow(parent)
 18     , ui(new Ui::MainWindow)
 19 {
 20     ui->setupUi(this);
 21 
 22     m_sPath = QCoreApplication::applicationDirPath() + "/XML";
 23     m_pAllFileDir = new AllFilesOrPathInDir(m_sPath);
 24     m_pItemModel = new QStandardItemModel(this);
 25     ui->listView->setModel(m_pItemModel);
 26 }
 27 
 28 MainWindow::~MainWindow()
 29 {
 30     delete m_pItemModel;
 31     delete ui;
 32 }
 33 
 34 void MainWindow::on_pushButton_clicked()
 35 {
 36     QString dirpath = QCoreApplication::applicationDirPath() + "/XML";
 37     //设置要遍历的目录
 38     QDir dir(dirpath);
 39     //设置文件过滤器
 40     QStringList nameFilters;
 41     //设置文件过滤格式
 42     nameFilters << "*.txt";
 43     //将过滤后的文件名称存入到files列表中
 44     QStringList files = dir.entryList(nameFilters, QDir::Files|QDir::Readable, QDir::Name);
 45 
 46     //
 47     QStandardItemModel *oItemModel = new QStandardItemModel(this);
 48     for(int i = 0; i < files.count(); i++)
 49     {
 50         QStandardItem *oItem = new QStandardItem(files[i]);
 51         oItemModel->appendRow(oItem);
 52     }
 53     ui->listView->setModel(oItemModel);
 54     // 结果
 55     // 文件1.txt
 56 }
 57 
 58 void MainWindow::on_pushButton_2_clicked()
 59 {
 60     // 输出结果
 61     m_pItemModel->clear();
 62     // 截取到的是文件夹的路径
 63     m_oFilePathNames = m_pAllFileDir->getFilePathNameOfSplDir(m_sPath, true);
 64     for(int i = 0; i < m_oFilePathNames.count(); i++)
 65     {
 66         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
 67         m_pItemModel->appendRow(oItem);
 68     }
 69     // 截取的是文件夹所在路径
 70     m_oFilePathNames = m_pAllFileDir->getFilePathNameOfSplDir(m_sPath, false);
 71     for(int i = 0; i < m_oFilePathNames.count(); i++)
 72     {
 73         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
 74         m_pItemModel->appendRow(oItem);
 75     }
 76     // 结果
 77     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/文件1.txt
 78     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML
 79 }
 80 
 81 void MainWindow::on_pushButton_3_clicked()
 82 {
 83     // 输出结果
 84     m_pItemModel->clear();
 85     // 输出结果
 86     m_oFilePathNames = m_pAllFileDir->getDirPathOfSplDir(m_sPath);
 87     for(int i = 0; i < m_oFilePathNames.count(); i++)
 88     {
 89         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
 90         m_pItemModel->appendRow(oItem);
 91     }
 92     // 结果
 93     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印
 94     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝
 95 }
 96 
 97 void MainWindow::on_pushButton_4_clicked()
 98 {
 99     // 输出结果
100     m_pItemModel->clear();
101     // 输出结果
102     m_oFilePathNames = m_pAllFileDir->getFileAndDirPathNameOfSplDir(m_sPath);
103     for(int i = 0; i < m_oFilePathNames.count(); i++)
104     {
105         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
106         m_pItemModel->appendRow(oItem);
107     }
108     // 结果
109     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/文件1.txt
110     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印
111     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝
112 }
113 
114 void MainWindow::on_pushButton_5_clicked()
115 {
116     QString sCount = QStringLiteral("文件数量为：%1 ");
117     ui->label->setText(sCount.arg(m_pAllFileDir->fileConutInSplDir(m_sPath)));
118 }
119 
120 void MainWindow::on_pushButton_6_clicked()
121 {
122     QString sCount = QStringLiteral("目录数量为：%1 ");
123     ui->label_2->setText(sCount.arg(m_pAllFileDir->dirCountInSplDir(m_sPath)));
124 }
125 
126 void MainWindow::on_pushButton_7_clicked()
127 {
128     // 输出结果
129     m_pItemModel->clear();
130     // 输出结果
131     m_oFilePathNames = m_pAllFileDir->getFilePathNameOfSplAndChildDir(m_sPath);
132     for(int i = 0; i < m_oFilePathNames.count(); i++)
133     {
134         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
135         m_pItemModel->appendRow(oItem);
136     }
137     // 结果
138     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/文件1.txt
139     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印/文件2.txt
140     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝/文件3.txt
141 }
142 
143 void MainWindow::on_pushButton_8_clicked()
144 {
145     // 输出结果
146     m_pItemModel->clear();
147     // 输出结果
148     m_oFilePathNames = m_pAllFileDir->getDirPathOfSplAndChildDir(m_sPath);
149     for(int i = 0; i < m_oFilePathNames.count(); i++)
150     {
151         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
152         m_pItemModel->appendRow(oItem);
153     }
154     // 结果
155     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印
156     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝
157     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印/中印内
158     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝/中朝近
159 }
160 
161 void MainWindow::on_pushButton_9_clicked()
162 {
163     // 输出结果
164     m_pItemModel->clear();
165     // 输出结果
166     m_oFilePathNames = m_pAllFileDir->getFileAndDirPathNameOfSplAndChildDir(m_sPath);
167     for(int i = 0; i < m_oFilePathNames.count(); i++)
168     {
169         QStandardItem *oItem = new QStandardItem(m_oFilePathNames[i]);
170         m_pItemModel->appendRow(oItem);
171     }
172     // 结果
173     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/文件1.txt
174     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印
175     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印/文件2.txt
176     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印/中印内
177     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中印/中印内/中印内.txt
178     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝
179     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝/文件3.txt
180     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝/中朝近
181     // E:/QtDemoRelease/QtGetAllFileAndDir/QtGetAllFileAndDir/bin/XML/中朝/中朝近/中朝近.txt
182 }
View Code

AllFilesOrPathInDir.h

 1 #ifndef ALLFILESORPATHINDIR_H
 2 #define ALLFILESORPATHINDIR_H
 3 
 4 #include <QDir>
 5 #include <QString>
 6 #include <QStringList>
 7 
 8 class AllFilesOrPathInDir
 9 {
10 public:
11     AllFilesOrPathInDir();
12     /**构造函数 目录的路径 */
13     AllFilesOrPathInDir(QString dirPath);
14     /** 设置目录 目标文件夹的目录 */
15     void setDirPath(QString dirPath);
16     /** 获取指定目录下的文件路径+名称 目标文件夹的目录 */
17     QStringList getFilePathNameOfSplDir(QString dirPath, bool isShowFile);
18     /** 获取在指定目录下的目录的路径 */
19     QStringList getDirPathOfSplDir(QString dirPath);
20     /** 获取指定目录下的文件和目录的全路径 */
21     QStringList getFileAndDirPathNameOfSplDir(QString dirPath);
22     /** 在指定文件夹下的文件数 */
23     int fileConutInSplDir(QString dirPath);
24     /** 在指定文件夹下的目录数 */
25     int dirCountInSplDir(QString dirPath);
26     /** 获取指定目录及其子目录下文件的全路径 */
27     QStringList getFilePathNameOfSplAndChildDir(QString dirPath);
28     /** 获取指定目录及其子目录下的文件夹的全路径 */
29     QStringList getDirPathOfSplAndChildDir(QString dirPath);
30     /** 获取指定目录及其子目录下的文件与目录的全路径 */
31     QStringList getFileAndDirPathNameOfSplAndChildDir(QString dirPath);
32 private:
33     QString dirPath;
34 };
35 
36 #endif // ALLFILESORPATHINDIR_H
View Code

AllFilesOrPathInDir.cpp

  1 #include "AllFilesOrPathInDir.h"
  2 
  3 AllFilesOrPathInDir::AllFilesOrPathInDir()
  4 {
  5 
  6 }
  7 
  8 AllFilesOrPathInDir::AllFilesOrPathInDir(QString dirPath)
  9 {
 10     this->dirPath = dirPath;
 11 }
 12 
 13 void AllFilesOrPathInDir::setDirPath(QString dirPath)
 14 {
 15     this->dirPath = dirPath;
 16 }
 17 
 18 QStringList AllFilesOrPathInDir::getFilePathNameOfSplDir(QString dirPath, bool isShowFile)
 19 {
 20     QStringList filePathNames;
 21     QDir splDir(dirPath);
 22     QFileInfoList fileInfoListInSplDir = splDir.entryInfoList(QDir::Files);
 23     QFileInfo tempFileInfo;
 24     foreach (tempFileInfo, fileInfoListInSplDir) {
 25         // absoluteFilePath()   -- 截取到的是文件夹的路径
 26         // absolutePath()       -- 截取的是文件夹所在路径
 27         if (isShowFile)
 28         {
 29             filePathNames << tempFileInfo.absoluteFilePath();
 30         }
 31         else
 32         {
 33             filePathNames << tempFileInfo.absolutePath();
 34         }
 35     }
 36     return filePathNames;
 37 }
 38 
 39 QStringList AllFilesOrPathInDir::getDirPathOfSplDir(QString dirPath)
 40 {
 41     QStringList dirPaths;
 42     QDir splDir(dirPath);
 43     QFileInfoList fileInfoListInSplDir = splDir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
 44     QFileInfo tempFileInfo;
 45     foreach (tempFileInfo, fileInfoListInSplDir) {
 46         dirPaths << tempFileInfo.absoluteFilePath();
 47     }
 48     return dirPaths;
 49 }
 50 
 51 QStringList AllFilesOrPathInDir::getFileAndDirPathNameOfSplDir(QString dirPath)
 52 {
 53     QStringList fileAndDirPathNames;
 54     fileAndDirPathNames << getFilePathNameOfSplDir(dirPath, true);
 55     fileAndDirPathNames << getDirPathOfSplDir(dirPath);
 56     return fileAndDirPathNames;
 57 }
 58 
 59 int AllFilesOrPathInDir::fileConutInSplDir(QString dirPath)
 60 {
 61     return QDir(dirPath).entryList(QDir::Files).count();
 62 }
 63 
 64 int AllFilesOrPathInDir::dirCountInSplDir(QString dirPath)
 65 {
 66     return QDir(dirPath).entryList(QDir::Dirs | QDir::NoDotAndDotDot).count();
 67 }
 68 
 69 QStringList AllFilesOrPathInDir::getFilePathNameOfSplAndChildDir(QString dirPath)
 70 {
 71     QStringList filePathNames;
 72     // 首先，得到这个目录下面的文件全部
 73     filePathNames << getFilePathNameOfSplDir(dirPath, true);
 74 
 75     QStringList childDirs;
 76     childDirs << getDirPathOfSplDir(dirPath);
 77 
 78     QString tempChildDir;
 79     foreach (tempChildDir, childDirs) {
 80         // 取其子文件夹内容
 81         filePathNames << getFilePathNameOfSplAndChildDir(tempChildDir);
 82     }
 83     return filePathNames;
 84 }
 85 
 86 QStringList AllFilesOrPathInDir::getDirPathOfSplAndChildDir(QString dirPath)
 87 {
 88     QStringList dirPathNames;
 89     dirPathNames << getDirPathOfSplDir(dirPath);
 90 
 91     QString tempChildDir;
 92     foreach (tempChildDir, dirPathNames) {
 93         dirPathNames << getDirPathOfSplAndChildDir(tempChildDir);
 94     }
 95     return dirPathNames;
 96 }
 97 
 98 QStringList AllFilesOrPathInDir::getFileAndDirPathNameOfSplAndChildDir(QString dirPath)
 99 {
100     QStringList fileAndDirPathNames;
101     fileAndDirPathNames << getFilePathNameOfSplDir(dirPath, true);
102 
103     QStringList childDirs;
104     childDirs << getDirPathOfSplDir(dirPath);
105 
106     QString tempChildDir;
107     foreach (tempChildDir, childDirs) {
108         fileAndDirPathNames << tempChildDir;
109         // 取其子文件夹内容
110         fileAndDirPathNames << getFileAndDirPathNameOfSplAndChildDir(tempChildDir);
111     }
112     return fileAndDirPathNames;
113 }
View Code
作者：疯狂Delphi
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原文地址：https://www.cnblogs.com/FKdelphi/p/13535527.html