1、概述
源码放在文章末尾

该项目基于QT+QML实现了文件传输的功能，可以在局域网环境下使用(热点)，扫描使用UDP，传输使用TCP，每一个文件传输使用独立的线程进行处理，高效便捷。

开发环境
使用Qt/Qml开发
QT版本：Qt 5.13.0
基本未使用高版本特性，保证Qt Version >= 5.0即可，建议是Qt 5.5 ~ 5.7

项目demo演示如下：

项目部分代码如下所示：

#ifndef FILEMANAGER_H
#define FILEMANAGER_H#include <QObject>
#include <QQmlListProperty>class FileInfo : public QObject
{Q_OBJECTQ_PROPERTY(QString fileName READ fileName WRITE setFileName NOTIFY fileNameChanged)Q_PROPERTY(int offset READ offset WRITE setOffset NOTIFY offsetChanged)Q_PROPERTY(int fileSize READ fileSize WRITE setFileSize NOTIFY fileSizeChanged)public:FileInfo(QObject *parent = nullptr);FileInfo(const FileInfo &other, QObject *parent = nullptr);FileInfo(const QString &fileName, int offset, int fileSize, QObject *parent = nullptr);~FileInfo();QString fileName() const;void setFileName(const QString &fileName);int offset() const;void setOffset(int offset);int fileSize() const;void setFileSize(int fileSize);signals:void fileNameChanged();void offsetChanged();void fileSizeChanged();private:QString m_fileName;int m_offset;int m_fileSize;
};class FileManager : public QObject
{Q_OBJECTQ_PROPERTY(QQmlListProperty<FileInfo> readFiles READ readFiles NOTIFY readFilesChanged)Q_PROPERTY(QQmlListProperty<FileInfo> writeFiles READ writeFiles NOTIFY writeFilesChanged)public:static FileManager* instance();~FileManager();QQmlListProperty<FileInfo> readFiles();QQmlListProperty<FileInfo> writeFiles();public slots:void addReadFile(const QString &fileName, qint32 totalSize);void updateReadFile(const QString &fileName, qint32 offset);void addWriteFile(const QString &fileName, qint32 totalSize);void updateWriteFile(const QString &fileName, qint32 offset);signals:void readFilesChanged();void writeFilesChanged();void readFileComplete(const QString &fileName);void writeFileComplete(const QString &fileName);private:FileManager(QObject *parent = nullptr);QHash<QString, FileInfo*> m_filesTable;QList<FileInfo *> m_readFiles;QQmlListProperty<FileInfo> *m_readFilesProxy;QList<FileInfo *> m_writeFiles;QQmlListProperty<FileInfo> *m_writeFilesProxy;
};#endif // FILEMANAGER_H

#include "filemanager.h"
#include <QDebug>FileInfo::FileInfo(QObject *parent): QObject (parent)
{}FileInfo::FileInfo(const FileInfo &other, QObject *parent): QObject (parent),m_fileName(other.m_fileName),m_offset(other.m_offset),m_fileSize(other.m_fileSize)
{}FileInfo::FileInfo(const QString &fileName, int offset, int fileSize, QObject *parent): QObject (parent),m_fileName(fileName),m_offset(offset),m_fileSize(fileSize)
{}FileInfo::~FileInfo()
{}QString FileInfo::fileName() const
{return m_fileName;
}void FileInfo::setFileName(const QString &fileName)
{if (fileName != m_fileName) {m_fileName = fileName;emit fileNameChanged();}
}int FileInfo::offset() const
{return m_offset;
}void FileInfo::setOffset(int offset)
{if (offset != m_offset) {m_offset = offset;emit offsetChanged();}
}int FileInfo::fileSize() const
{return m_fileSize;
}void FileInfo::setFileSize(int fileSize)
{if (fileSize != m_fileSize) {m_fileSize = fileSize;emit fileSizeChanged();}
}FileManager* FileManager::instance()
{static FileManager fileManager;return &fileManager;
}FileManager::FileManager(QObject *parent): QObject (parent)
{m_readFilesProxy = new QQmlListProperty<FileInfo>(this, m_readFiles);m_writeFilesProxy = new QQmlListProperty<FileInfo>(this, m_writeFiles);
}FileManager::~FileManager()
{}QQmlListProperty<FileInfo> FileManager::readFiles()
{return *m_readFilesProxy;
}QQmlListProperty<FileInfo> FileManager::writeFiles()
{return *m_writeFilesProxy;
}void FileManager::addReadFile(const QString &fileName, qint32 totalSize)
{FileInfo *info = new FileInfo(fileName, 0, totalSize, this);m_readFiles.append(info);m_filesTable[fileName] = info;emit readFilesChanged();
}void FileManager::updateReadFile(const QString &fileName, qint32 offset)
{FileInfo *info = m_filesTable[fileName];if (info) {info->setOffset(offset);if (offset == info->fileSize()) {m_filesTable.remove(fileName);emit writeFileComplete(fileName);}}
}void FileManager::addWriteFile(const QString &fileName, qint32 totalSize)
{FileInfo *info = new FileInfo(fileName, 0, totalSize, this);m_writeFiles.append(info);m_filesTable[fileName] = info;emit writeFilesChanged();
}void FileManager::updateWriteFile(const QString &fileName, qint32 offset)
{FileInfo *info = m_filesTable[fileName];if (info) {info->setOffset(offset);if (offset == info->fileSize()) {m_filesTable.remove(fileName);emit writeFileComplete(fileName);}}
}

源码下载