进行了部分逻辑上的改动

TcpClient.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 6.0.2, 2023-01-09T18:43:00. -->
+<!-- Written by QtCreator 6.0.2, 2023-01-09T23:21:25. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

datamanager.cpp

@@ -160,19 +160,19 @@ void DataManager::send_to_user(QString sendname, QString to_user, QString text)
 void DataManager::send_file_to_all(QString sendname, QString filename, QByteArray file)
 {
     QByteArray data, data_encrypt;
-    data = protocol->data_maker(Protocol::FILE, sendname, filename, QString(file));
+    data = protocol->data_maker(Protocol::FILE, sendname, filename, QString(file.toHex()));
     data_encrypt = protocol->data_encrypt(data);
     tcpclient->sendToserver(data_encrypt);
-    qDebug() << "群发文件" << data;
+    qDebug() << "群发文件";
 }
 
 void DataManager::send_file_private(QString sendname, QString filename, QByteArray file, QString name)
 {
     QByteArray data, data_encrypt;
-    data = protocol->data_maker(Protocol::FILE, name, sendname, filename, QString(file));
+    data = protocol->data_maker(Protocol::FILE, name, sendname, filename, QString(file.toHex()));
     data_encrypt = protocol->data_encrypt(data);
     tcpclient->sendToserver(data_encrypt);
-    qDebug() << "私发文件" << data;
+    qDebug() << "私发文件";
 }
 
 void DataManager::account_cancellation(QString username)

login.cpp

@@ -9,9 +9,11 @@ Login::Login(QWidget *parent) :
     ui->setupUi(this);
     this->setWindowIcon(QIcon(":/icon.png"));
     this->setTabOrder(ui->lineEdit_username,ui->lineEdit_password);
+    this->setTabOrder(ui->lineEdit_password,ui->btn_signin);
     this->setWindowFlags(Qt::FramelessWindowHint); //无边框
     this->setAttribute(Qt::WA_TranslucentBackground);
     new_closebutton(ui->close_btn,":/close.png", QSize(30, 30));
+    ui->btn_signin->installEventFilter(this);
 
     /********datamanager********/
     datamanager = DataManager::getInstance();
@@ -267,3 +269,21 @@ void Login::new_closebutton(QPushButton* btn, QString position,QSize size)
     //设置图标
     btn->setIcon(pixmap);
 }
+
+bool Login::eventFilter(QObject *target, QEvent *event)
+{
+    if(target == ui->btn_signin)		//可替换
+        {
+            if(event->type() == QEvent::KeyPress)//回车键
+            {
+                 QKeyEvent *k = static_cast<QKeyEvent *>(event);
+
+                 if(k->key() == Qt::Key_Return || k->key() == Qt::Key_Enter)
+                 {
+                     on_btn_signin_clicked();		//替换为需要响应的函数事件，以这里的按钮为例
+                     return true;
+                 }
+            }
+        }
+        return QWidget::eventFilter(target,event);
+}

login.h

@@ -63,6 +63,7 @@ private:
     void new_closebutton(QPushButton* btn, QString position,QSize size);
     void zoom_up(QPushButton* btn);
     void zoom_down(QPushButton* btn);
+    bool eventFilter(QObject *target, QEvent *event);
 
 };
 

main.cpp

@@ -1,11 +1,31 @@
 #include "login.h"
 
 #include <QApplication>
+#include <QDir>
 
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
     Login w;
     w.show();
+    QString document_name("Document");
+    QString record_name("ChatRecord");
+    QDir dir(QDir::currentPath());
+    QFile file("./ChatRecord/memory.txt");
+
+    if(!dir.exists(document_name))
+    {
+        dir.mkdir(document_name);
+        qDebug()<<QString("文件夹%1创建成功！").arg(document_name);
+    }
+    if(!dir.exists(record_name))
+    {
+        dir.mkdir(record_name);
+        qDebug()<<QString("文件夹%1创建成功！").arg(record_name);
+    }
+    if(!file.exists())
+    {
+        file.open(QIODevice::WriteOnly | QIODevice::Append);
+    }
     return a.exec();
 }

mainwidget.cpp

@@ -13,6 +13,22 @@ MainWidget::MainWidget(QString username,QWidget *parent) :
     ui->name_list->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
     ui->name_list->verticalScrollBar()->setStyleSheet("QScrollBar{width:16px;}");
     ui->textEdit->setReadOnly(true);
+    ui->textEdit->setFocusPolicy(Qt::NoFocus);
+    //防止QTextBrowser中的内容被重定向
+    ui->textEdit->setOpenLinks(false);
+    ui->textEdit->setOpenExternalLinks(false);
+    connect(ui->textEdit, &QTextBrowser::anchorClicked, this, [=](const QUrl &link)
+    {
+        auto path = link.path();
+        qDebug() << path;
+        path.remove(0, 1);
+        qDebug() << path;
+        QFileInfo info(path);
+        if(info.isDir())
+            QDesktopServices::openUrl(link);
+        else if(info.isFile())
+            QDesktopServices::openUrl(QUrl::fromLocalFile(path));
+    });
     ui->send_btn->setFocus();
     ui->send_btn->setDefault(true);
     ui->msg_edit->installEventFilter(this);//设置完后自动调用其eventFilter函数
@@ -45,7 +61,9 @@ void MainWidget::on_send_text_clicked()
         if(text.isEmpty())  //群发
         {
             QString currentTime = QTime::currentTime().toString("H:mm A");
-            ui->textEdit->append("<font color=\"MediumBlue\"><b>" + username + " [" + currentTime + "] send a file \"" + filename + "\"</b></font>");
+            QString html = "<a href=\"file:///" + filePath + "\">" + filename + "</a>";
+            qDebug() << html;
+            ui->textEdit->append("<font color=\"MediumBlue\"><b>" + username + " [" + currentTime + "] send a file \"" + html + "\"</b></font>");
             this->sendFile(filePath,filename);
         }
         else  //私发文件
@@ -53,15 +71,29 @@ void MainWidget::on_send_text_clicked()
             ui->msg_edit->clear();
             int n = text.indexOf(' ');
             QString name = text.mid(1,n-1);
-            if(name == username)
+            if(username == name)
             {
                 QMessageBox::critical(this,"错误","不能自己给自己发送文件！");
+                return;
+            }
+
+            int index = 0;
+            for (int i = 0; i < ui->name_list->count(); i++)
+            {
+                if(name != ui->name_list->item(index)->text())
+                    index++;
+            }
+            if(index >= ui->name_list->count())
+            {
+                QMessageBox::critical(this,"错误","未找到指定用户！");
+                return;
             }
             else
             {
                 QString currentTime = QTime::currentTime().toString("H:mm A");
-                ui->textEdit->append(QString("<font color=\"MediumBlue\"><b>" + username + " [" + currentTime + "] send a private file to %1\""
+                QString html = "<a href=\"file:///" + filePath + "\">" + filename + "</a>";
-                                             + filename + "\"</b></font>").arg(name));
+                qDebug() << html;
+                ui->textEdit->append("<font color=\"MediumBlue\"><b>" + username + " [" + currentTime + "] send " + name + " a private file \"" + html + "\"</b></font>");
                 this->sendFile(filePath,filename,name);
             }
         }
@@ -70,7 +102,7 @@ void MainWidget::on_send_text_clicked()
 
 void MainWidget::on_save_btn_clicked()
 {
-    QFile file("./memory.txt");
+    QFile file("./ChatRecord/memory.txt");
     if (file.exists()) //文件存在
     {
         QMessageBox::StandardButton reply;
@@ -82,8 +114,10 @@ void MainWidget::on_save_btn_clicked()
                 QTextStream stream(&file);
                 //转换为字符串
                 QString str = ui->textEdit->toPlainText();
-                str = "\n\n" + str;
+                QString date = QDate::currentDate().toString("yyyy-MM-dd ");
-                //写入文本流
+                QString currentTime = QTime::currentTime().toString("H:mm A\n");
+                str = "\n\n" + date + currentTime + str;
+                //加入时间戳并写入
                 stream << str;
                 //关闭文件
                 file.close();
@@ -97,7 +131,9 @@ void MainWidget::on_save_btn_clicked()
                 QTextStream stream(&file);
                 //转换为字符串
                 QString str = ui->textEdit->toPlainText();
-                //写入文本流
+                QString date = QDate::currentDate().toString("yyyy-MM-dd ");
+                QString currentTime = QTime::currentTime().toString("H:mm A\n");
+                str = date + currentTime + str + "\n";
                 stream << str;
                 //关闭文件
                 file.close();
@@ -132,14 +168,17 @@ void MainWidget::on_send_btn_clicked()
         QString data_text = insert + text.mid(n,-1);
         QString text_self = QString("私发给%1:%2").arg(to_user).arg(text.mid(n));
         qDebug() << text_self;
-        int index = 0;
+        if(username == to_user)
-        for (index = 0; index < ui->name_list->count(); index++)
         {
-            if(username ==ui->name_list->item(index)->text())
+            QMessageBox::critical(this,"错误","不能自己给自己发送文件！");
-            {
-                QMessageBox::critical(this,"错误","不能自己给自己发送消息！");
             return;
         }
+
+        int index = 0;
+        for (int i = 0; i < ui->name_list->count(); i++)
+        {
+            if(to_user != ui->name_list->item(index)->text())
+                index++;
         }
         if(index >= ui->name_list->count())
         {
@@ -213,6 +252,24 @@ void MainWidget::update_text(QString sendname,QString data)
     ui->textEdit->append(sendname + " [" + currentTime + "] : " + data);
 }
 
+void MainWidget::update_file(QString sendname,QString filename,QString file_data)
+{
+    readFile(filename,QByteArray::fromHex(file_data.toUtf8()));
+    QString currentTime = QTime::currentTime().toString("H:m A");
+    QString html = "<a href=\"file:///./Document/" + filename + "\">" + filename + "</a>";
+    QString msg = username + " [" + currentTime + "] : " + QString("收到了一个来自%1的群发文件:").arg(sendname) + html;
+    ui->textEdit->append(msg);
+}
+
+void MainWidget::update_file_private(QString sendname,QString filename,QString file_data)
+{
+    readFile(filename,QByteArray::fromHex(file_data.toUtf8()));
+    QString currentTime = QTime::currentTime().toString("H:m A");
+    QString html = "<a href=\"file:///./Document/" + filename + "\">" + filename + "</a>";
+    QString msg = username + " [" + currentTime + "] : " + QString("收到了一个来自%1的私发文件:").arg(sendname) + html;
+    ui->textEdit->append(msg);
+}
+/*
 void MainWidget::update_file(QString sendname,QString filename,QString file_data)
 {
     QMessageBox::StandardButton response;
@@ -248,7 +305,7 @@ void MainWidget::update_file_private(QString sendname,QString filename,QString f
          QMessageBox::information(this,"消息","未接收该文件！");
     }
 }
-
+*/
 void MainWidget::update_users(int count,QList<QString>online_users)
 {
     ui->name_list->clear();
@@ -271,25 +328,23 @@ void MainWidget::sendFile(QString filePath,QString filename,QString name)
         return;
     }
 
-    //打开文件流，以写的方式打开
+    /*打开文件流，以写的方式打开
     QDataStream out(&block,QIODevice::WriteOnly);
-    out.setVersion(QDataStream::Qt_5_8);
+    out.setVersion(QDataStream::Qt_5_8);*/
 
     //将数据读取到QByteArray
     QByteArray dataOfFile = file.readAll();
     //关闭文件
     file.close();
-    //放入block
-    block.append(dataOfFile);
 
     if(name.isEmpty())  //群发文件
     {
-        emit send_file_to_all(username,filename,block);
+        emit send_file_to_all(username,filename,dataOfFile);
     }
 
     else  //私发文件
     {
-        emit send_file_private(username,filename,block,name);
+        emit send_file_private(username,filename,dataOfFile,name);
     }
     QProgressDialog *progressDlg = new QProgressDialog(this);
     progressDlg->setWindowModality(Qt::WindowModal);
@@ -313,21 +368,32 @@ void MainWidget::sendFile(QString filePath,QString filename,QString name)
 
 void MainWidget::readFile(QString filename,QByteArray data)
 {
-
+    /*QString homePath = QDir::homePath();
-        QString homePath = QDir::homePath();
+    QString filePath = QFileDialog::getExistingDirectory(this，tr("Open Directory"),homePath,
-        QString filePath = QFileDialog::getExistingDirectory(this,
+                                                    QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);*/
-                                                        tr("Open Directory"),
+    QString filepath = "./Document";
-                                                        homePath,
+    QDir dir(filepath);
-                                                        QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+    if(dir.exists())
-        QFile outFile(filePath + "/" +filename);
+    {
+        QFile outFile(filepath + "/" +filename);
         if(!outFile.open(QIODevice::WriteOnly)){
-            QMessageBox::warning(this,"","错误: 无法打开文件.");
+            QMessageBox::warning(this,"错误","接收文件出错！");
             return;
         }
         outFile.write(data);
         outFile.close();
-        QMessageBox::question(this,"接收文件","接收成功！");
+    }
-
+    else
+    {
+        dir.mkdir(filepath);
+        QFile outFile(filepath + "/" +filename);
+        if(!outFile.open(QIODevice::WriteOnly)){
+            QMessageBox::warning(this,"错误","接收文件出错！");
+            return;
+        }
+        outFile.write(data);
+        outFile.close();
+    }
 }
 
 bool MainWidget::eventFilter(QObject *target, QEvent *event)

mainwidget.h

@@ -13,6 +13,8 @@
 #include <QFileDialog>
 #include <QScrollBar>
 #include <QKeyEvent>
+#include <QDate>
+#include <QDesktopServices>
 
 namespace Ui {
 class MainWidget;

mainwidget.ui

@@ -71,19 +71,6 @@
     </item>
    </layout>
   </widget>
-  <widget class="QTextEdit" name="textEdit">
-   <property name="geometry">
-    <rect>
-     <x>60</x>
-     <y>50</y>
-     <width>361</width>
-     <height>401</height>
-    </rect>
-   </property>
-   <property name="styleSheet">
-    <string notr="true">border-radius:20px;</string>
-   </property>
-  </widget>
   <widget class="QWidget" name="layoutWidget_3">
    <property name="geometry">
     <rect>
@@ -242,6 +229,20 @@ QScrollBar::add-page:vertical,QScrollBar::sub-page:vertical
     </item>
    </layout>
   </widget>
+  <widget class="QTextBrowser" name="textEdit">
+   <property name="geometry">
+    <rect>
+     <x>55</x>
+     <y>51</y>
+     <width>371</width>
+     <height>401</height>
+    </rect>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">border-radius:
+7px;padding:2px 4px;</string>
+   </property>
+  </widget>
  </widget>
  <resources/>
  <connections/>

protocol.cpp

@@ -155,7 +155,6 @@ QByteArray Protocol::data_encrypt(QByteArray src)
 
 QByteArray Protocol::data_decrypt(QByteArray src)
 {
-    qDebug() << QString(src);
     QByteArray result = XOR_En_Decrypt(src);
     //qDebug() << result;
     result = Upper_Lower_En_Decrypt(result);

tcpclient.cpp

@@ -35,7 +35,6 @@ void TCPClient::configAndrun()
 
 void TCPClient::sendToserver(QByteArray &data)
 {
-    qDebug() << data;
     if (socket.isOpen())
     {
         socket.write(data);
@@ -51,7 +50,6 @@ void TCPClient::setServer(QString IP, qint16 port)
 
 void TCPClient::connected()
 {
-    qDebug() << "1";
     emit TCPClientConnected();
     qDebug() << "emit TCPClientConnected successfully";
     QString addr_t = socket.peerAddress().toString();