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做爰的网站,优化网站怎么做,网站如何做关键词排名靠前,柳城网站建设一、设计要求 用QT做一个聊天室， 制作一个服务器和客户端。可以进行注册、登录， 登陆成功后可以使用昵称进行发送、接收消息。 能根据昵称、聊天内容查询历史记录，也可以查询全部聊天记录。 。 二、客户端三级ui界面 三、项目代码 //在…

一、设计要求

用QT做一个聊天室，

制作一个服务器和客户端。可以进行注册、登录，

登陆成功后可以使用昵称进行发送、接收消息。

能根据昵称、聊天内容查询历史记录，也可以查询全部聊天记录。

。

二、客户端三级ui界面

三、项目代码

//在pro文件里加入
QT       += core gui network
RC_FILE += icon_config.rc
//客户端dialog.h
#ifndef DIALOG_H
#define DIALOG_H#include <QtWidgets>
#include <QDebug>
// 网络连接类
#include <QTcpSocket>
// 文本流
#include <QTextStream>
#include <QDateTime>
#include <QByteArray>namespace Ui {
class Dialog;
}class Dialog : public QDialog
{Q_OBJECTpublic:explicit Dialog(QWidget *parent = 0);~Dialog();private:Ui::Dialog *ui;QTcpSocket *client;void printMsg(QString); // 输出内容到公屏void succRight();private slots:void btnConnClickedSlot(); // 连接按钮void btnSendClickedSlot(); // 发送按钮void connectedSlot(); // 连接成功的槽函数void disconnectedSlot(); // 断开连接的槽函数void readReadSlot(); // 接收数据的槽函数void btnHisClickedSlot();//历史记录void btnHisNameClickedSlot();//按照昵称void btnHisNeiClickedSlot();//按照内容void btnLoginClickedSlot();//登录/切换窗口void btnRegClickedSlot();//注册};#endif // DIALOG_H

//客户端dialog.c
#include "dialog.h"
#include "ui_dialog.h"Dialog::Dialog(QWidget *parent) :QDialog(parent),ui(new Ui::Dialog)
{ui->setupUi(this);// 抢前台setWindowFlags(Qt::WindowStaysOnTopHint);connect(ui->pushButtonConn,SIGNAL(clicked()),this,SLOT(btnConnClickedSlot()));connect(ui->pushButtonSend,SIGNAL(clicked()),this,SLOT(btnSendClickedSlot()));client = new QTcpSocket(this);// 建立网络连接检测的信号槽connect(client,SIGNAL(connected()),this,SLOT(connectedSlot()));connect(client,SIGNAL(disconnected()),this,SLOT(disconnectedSlot()));// 接收消息的信号槽connect(client,SIGNAL(readyRead()),this,SLOT(readReadSlot()));
//历史connect(ui->pushButtonHis,SIGNAL(clicked()),this,SLOT(btnHisClickedSlot()));connect(ui->pushButtonName,SIGNAL(clicked()),this,SLOT(btnHisNameClickedSlot()));connect(ui->pushButtonNei,SIGNAL(clicked()),this,SLOT(btnHisNeiClickedSlot()));//切换窗口：登录connect(ui->pushButtonLo,SIGNAL(clicked()),this,SLOT(btnLoginClickedSlot()));//注册connect(ui->pushButtonReg,SIGNAL(clicked()),this,SLOT(btnRegClickedSlot()));}Dialog::~Dialog()
{disconnect(client,SIGNAL(disconnected()),this,SLOT(disconnectedSlot()));// 如果还在连接if(client->isOpen())client->close();delete ui;
}void Dialog::btnConnClickedSlot()
{// 发起连接请求// 默认用户输入的参数都对client->connectToHost(ui->lineEditIp->text(),ui->spinBox->value());
}void Dialog::printMsg(QString msg)
{// 获得当前时间QString time = QDateTime::currentDateTime().toString("yyyy-MM-dd-hh:mm:ss");ui->textBrowser->append(time);ui->textBrowser->append(msg);ui->textBrowser->append("");
}void Dialog::succRight()
{ui->stackedWidget->setCurrentIndex(1);
}void Dialog::btnSendClickedSlot()
{// 获得昵称和消息内容QString user = ui->lineEditUser->text();if(user==""){QMessageBox::warning(this,"提示","请输入昵称！");return;}QString msg = ui->lineEditMsg->text();if(msg == ""){QMessageBox::warning(this,"提示","请输入要发送的消息！");return;}QString time = QDateTime::currentDateTime().toString("yyyy-MM-dd-hh-mm-ss");// 创建文本流对象QTextStream output(client);// 连续输出发送output << time<<":"<<user << ":" << msg;// 清空消息输入框ui->lineEditMsg->clear();// 公屏显示msg = user+QString("(本机):")+msg;printMsg(msg);
}void Dialog::connectedSlot()
{// 屏蔽连接按钮，开启发送按钮ui->pushButtonConn->setEnabled(false);ui->pushButtonConn->setText("已连接");ui->pushButtonSend->setEnabled(true);ui->stackedWidget->setCurrentIndex(1);
}void Dialog::readReadSlot()
{QTextStream input(client);QString text = input.readAll();QString text1=input.readLine(100);qDebug() <<text1;QStringList list = text.split(":");QStringList list2 = text1.split(":");qDebug()<<"分割后数量"<<list.size();qDebug() <<list2.size();if(list.size()<4){if(text=="dlchengg"){qDebug() <<text;ui->stackedWidget->setCurrentIndex(2);ui->textBrowser->clear();}
//    else if(list.size()==3)
//    {//        ui->textBrowser_2->append(text);
//        return;
//    }else{printMsg(text);}}else if(list.size()>=4){ui->textBrowser_2->append(text);return;}
}void Dialog::btnHisClickedSlot()
{ui->textBrowser_2->clear();QString user = ui->lineEditUser->text();if(user==""){QMessageBox::warning(this,"提示","请输入昵称！");return;}QString time = QDateTime::currentDateTime().toString("yyyy-MM-dd-hh-mm-ss");// 创建文本流对象QTextStream output(client);QString mm="历史记录";output<< time<<":"<<user << ":" <<mm ;
}void Dialog::btnHisNameClickedSlot()
{ui->textBrowser_2->clear();QString user = ui->lineEditUser->text();QString time = "hh";// 创建文本流对象QTextStream output(client);QString mm="按照昵称";output<< time<<":"<<user << ":" <<mm ;
}void Dialog::btnHisNeiClickedSlot()
{ui->textBrowser_2->clear();QString user = "sjdhs";QString time = "按照内容";// 创建文本流对象QString msg = ui->lineEditMsg->text();if(msg == ""){QMessageBox::warning(this,"提示","请输入要发送的消息！");return;}QTextStream output(client);output<< time<<":"<<user << ":" <<msg ;
}void Dialog::btnLoginClickedSlot()
{QString user = ui->lineEditUs->text();if(user==""){QMessageBox::warning(this,"提示","请输入昵称！");return;}QString pwd = ui->lineEdit_2Pwd->text();if(pwd == ""){QMessageBox::warning(this,"提示","请输入密码！");return;}// 创建文本流对象QTextStream output(client);// 连续输出发送QString mag="hha";QString haf="lele";output <<user << ":" << pwd<<":"<<mag<<":"<<haf;}void Dialog::btnRegClickedSlot()
{QString user = ui->lineEditUs->text();if(user==""){QMessageBox::warning(this,"提示","请输入昵称！");return;}QString pwd = ui->lineEdit_2Pwd->text();if(pwd == ""){QMessageBox::warning(this,"提示","请输入密码！");return;}// 创建文本流对象QTextStream output(client);// 连续输出发送output <<user << ":" << pwd;
}void Dialog::disconnectedSlot()
{// 开启连接按钮，屏蔽发送按钮ui->pushButtonConn->setEnabled(true);ui->pushButtonConn->setText("连接");ui->pushButtonSend->setEnabled(false);// 弹窗printMsg("连接已断开！");QMessageBox::warning(this,"提示","连接已断开！");ui->stackedWidget->setCurrentIndex(0);
}

//服务器dialog.h
#ifndef DIALOG_H
#define DIALOG_H#include <QtWidgets>
#include <QDebug>
// 连接管理类
#include <QTcpServer>
#include <QDateTime>
// 连接类
#include <QTcpSocket>
// 文本流
#include <QTextStream>#include <QButtonGroup>
#include <QSqlDatabase>
#include <QDebug>
#include <QSqlError>
#include <QMessageBox>
#include <QSqlQuery>
#include <QByteArray>namespace Ui {
class Dialog;
}class Dialog : public QDialog
{Q_OBJECTpublic:explicit Dialog(QWidget *parent = 0);~Dialog();private:Ui::Dialog *ui;QTcpServer* server; // 管理对象（母鸡）void printMsg(QString); // 输出内容到公屏QTcpSocket* socket = NULL; // 连接对象（绿蛋）QList<QTcpSocket*> sockets;QList<QString> ips;QSqlDatabase db;void connect2DB(); // 连接到数据库1void createTable();// 建表void createTable2();void insertData(); // 插入数据void selectAll(int);  // 数据全查void selectLOgin(QString,QString,int);void selectName(QString,int);void selectNei(QString,int);private slots:// 新连接来了的槽函数void newConnSlot();// 连接掉线的信号槽void disconnetedSlot();// 有数据可读时的槽函数void readyReadSlot();};#endif // DIALOG_H

//服务器dialog.c
#include "dialog.h"
#include "ui_dialog.h"Dialog::Dialog(QWidget *parent) :QDialog(parent),ui(new Ui::Dialog)
{ui->setupUi(this);// 抢前台setWindowFlags(Qt::WindowStaysOnTopHint);server = new QTcpServer(this);// 连接新连接来了的信号槽connect(server,SIGNAL(newConnection()),this,SLOT(newConnSlot()));// 开启监听服务server->listen(QHostAddress::Any,8887);connect2DB();
}Dialog::~Dialog()
{if(server->isListening()) // 如果还在监听server->close();delete ui;
}void Dialog::printMsg(QString msg)
{// 获得当前时间QString time = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");ui->textBrowser->append(time);ui->textBrowser->append(msg);ui->textBrowser->append("");
}void Dialog::connect2DB()
{// 创建连接对象db = QSqlDatabase::addDatabase("QSQLITE");// 设置数据库的文件名称db.setDatabaseName("book_management.db");// 打开数据库if(db.open()){qDebug() << "连接成功";// createTable();// createTable2();}else{// 获得错误信息封装类QSqlError info = db.lastError();// 提取错误文本QString text = info.text();// 展示错误QMessageBox::critical(this,"错误",text);}}void Dialog::createTable()
{QString sql = "CREATE TABLE book(time TEXT PRIMARY KEY,name TEXT,msg TEXT);";// 创建数据库操作类对象QSqlQuery sq;if(sq.exec(sql)){qDebug() << "建表成功";}else// 失败{// 获得错误信息封装类QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();// 展示错误qDebug() << text;}}void Dialog::createTable2()
{QString sql2 = "CREATE TABLE class(name TEXT PRIMARY KEY,pwd TEXT);";// 创建数据库操作类对象QSqlQuery sq;if(sq.exec(sql2)){qDebug() << "建表2成功";}else// 失败{// 获得错误信息封装类QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();// 展示错误qDebug() << text;}
}void Dialog::selectAll(int i)
{QString sql = "SELECT * FROM book";QSqlQuery sq;sq.prepare(sql);if(sq.exec(sql)){// 清空上次显示//  ui->textBrowser->clear();while(sq.next())// 循环取出{// 取出一条数据库中的字段QString time = sq.value(0).toString();QString name = sq.value(1).toString();QString msg = sq.value(2).toString();QString msa="历史";// 拼接并显示QString text = msa.append(":")+ time.append(":")+ name.append(":") + msg;QTextStream output(sockets.at(i));output<< text<<endl;}}}void Dialog::selectLOgin(QString user, QString pwd2,int i)
{QString name=user;QString pwd=pwd2;QString sql = "SELECT * FROM class WHERE name LIKE ? AND pwd LIKE ?;";QSqlQuery sq;sq.prepare(sql);if(sq.exec(sql)){while(sq.next()){qDebug() << "yes";QString user = sq.value(0).toString();QString pwd = sq.value(1).toString();QString text ="dlchengg";QTextStream output(sockets.at(i));output<<text;}}else{QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();text.prepend("登录失败：");QMessageBox::warning(this,"警告",text);}
}void Dialog::selectName(QString name1,int i)
{QString name=name1;QString sql = "SELECT * FROM book WHERE name LIKE ?";QSqlQuery sq;sq.prepare(sql);sq.addBindValue(name);if(sq.exec()){while(sq.next())// 循环取出{// 取出一条数据库中的字段QString time = sq.value(0).toString();QString name = sq.value(1).toString();QString msg = sq.value(2).toString();QString msa="历史";// 拼接并显示QString text = msa.append(":")+time.append(":")+ name.append(":") + msg;QTextStream output(sockets.at(i));output<< text<<endl;}}
}void Dialog::selectNei(QString msg, int i)
{QString sql = "SELECT * FROM book WHERE msg LIKE ?";QSqlQuery sq;sq.prepare(sql);sq.addBindValue(msg.prepend("%").append("%"));if(sq.exec()){while(sq.next())// 循环取出{// 取出一条数据库中的字段QString time = sq.value(0).toString();QString name = sq.value(1).toString();QString msg = sq.value(2).toString();QString msa="历史";// 拼接并显示QString text = msa.append(":")+time.append(":")+ name.append(":") + msg;QTextStream output(sockets.at(i));output<< text<<endl;}}
}void Dialog::newConnSlot()
{// 获得服务器端的连接类对象socket = server->nextPendingConnection();QTextStream output(socket);// 如果满员则踢出if(sockets.size() == 20){qDebug() << "聊天室满员";output << QString("聊天室已达人数上限，连接失败！");socket->close();return;}sockets.append(socket);// 绿蛋收到消息的信号槽connect(socket,SIGNAL(readyRead()),this,SLOT(readyReadSlot()));// 绿蛋掉线的信号槽connect(socket,SIGNAL(disconnected()),this,SLOT(disconnetedSlot()));// 给客户端打个招呼output << QString("服务器：你好啊！");// 获得对面的IP地址和端口号QString ip = socket->peerAddress().toString();quint16 port = socket->peerPort();QString portText = QString::number(port);QString text = "新连接来了！";text.append(ip).append(":").append(portText);printMsg(text);
}void Dialog::disconnetedSlot()
{// 拿到发射者socket = (QTcpSocket*)sender();for(int i = 0;i<sockets.size();i++){if(socket == sockets.at(i)){qDebug() << "第" << i << "个客户端掉线了";// 获得对面的IP地址和端口号QString ip = sockets.at(i)->peerAddress().toString();quint16 port = sockets.at(i)->peerPort();QString portText = QString::number(port);QString text = "连接已断开！";text.append(ip).append(":").append(portText);printMsg(text);sockets.removeAt(i);}}
}//接收数据
void Dialog::readyReadSlot()
{for(int i=0;i<sockets.size();i++){if(sockets.at(i)->isReadable() && sockets.at(i)->bytesAvailable()>0){qDebug() << "第" << i << "个客户端发的消息";QTextStream input(sockets.at(i));// 一口气都读了QString text = input.readAll();//写入数据库QStringList list = text.split(":");qDebug()<<"分割后数量"<<list.size();if(list.size()==3){QString time = list[0];QString name = list[1];QString msg = list[2];if(list[2]=="历史记录"){selectAll( i);}else if(list[2]=="按照昵称"){selectName(name,i);}else if(list[0]=="按照内容"){selectNei(msg,i);}else{createTable();QString sql = "INSERT INTO book VALUES(?,?,?);";QSqlQuery sq;sq.prepare(sql);sq.addBindValue(time);sq.addBindValue(name);sq.addBindValue(msg);if(sq.exec()){qDebug()<<"数据插入成功";// QMessageBox::information(this,"通知","数据插入成功");}else{// 获得错误信息封装类QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();// 展示错误text.prepend("数据插入失败：");QMessageBox::warning(this,"警告",text);}printMsg(text);for(int m=0;m<sockets.size();m++){if(m==i)continue;QTextStream output(sockets.at(m));output << text;}}}else if(list.size()==2){createTable2();QString name = list[0];QString pwd = list[1];QString sql = "INSERT INTO class VALUES(?,?);";QSqlQuery sq;sq.prepare(sql);sq.addBindValue(name);sq.addBindValue(pwd);if(sq.exec()){qDebug()<<"注册成功";// QMessageBox::information(this,"通知","数据插入成功");}else{// 获得错误信息封装类QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();// 展示错误text.prepend("注册失败：");QMessageBox::warning(this,"警告",text);}printMsg(text);for(int m=0;m<sockets.size();m++){if(m==i)continue;QTextStream output(sockets.at(m));output << text;}}else if(list.size()==4){QString name = list[0];QString pwd = list[1];qDebug() << name<<pwd;QString sql = "SELECT * FROM class WHERE name=? AND pwd=?";QSqlQuery sq;sq.prepare(sql);sq.addBindValue(name);sq.addBindValue(pwd);qDebug() << "yes";if(sq.exec()){// 取出一条数据库中的字段while(sq.next()){QString name = sq.value(0).toString();QString pwd = sq.value(1).toString();qDebug() <<name<<pwd;qDebug() << "yes";QString text ="dlchengg";QTextStream output(sockets.at(i));output<<text;}}else{QSqlError info = sq.lastError();// 提取错误文本QString text = info.text();text.prepend("登录失败：");QMessageBox::warning(this,"警告",text);}}}}}

四、项目结果

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