基于Qt简单聊天程序-具体步骤-详细注释.docx

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1、基于qt编写的c/s模型的简单聊天程序开发Qt工具1,选择新建工程2选择Qt4GuiApplication工程。（带Ul界面编辑的工程）3取工程名C_S_Socket。路径随意,不要有任何中文Next4默认即可，Next（这是为此次工程选择要添加的头文件。我们不需要其他的功能。默认）5 Baseclass选择QDiaIog（IClassname改MainDlgoNext（我们是基于Qt界面编程的嘛。所以就选QDialogQt窗口类嚷）6 Finish完成（这里是编辑器告诉我们生成了如下文件）1点击maindlg.ui进入主界面窗体设计成如下2设置各个控件的对象名（不能同名，系统用对象名找到控件

2、。命名标准方便自己识别）效劳器睢项选择框：radioBu11on_Server客户端雅项选择框：radioButton_CIientIP地址框：lineEdit_Address用户名框：1IneEditName离开按钮：WayButton进入按钮：GnterButton3创立一个窗体类，用于发送接收信息的窗体选择窗体样式。修改类名chat,下一步完成（chat：聊天的意思）4第二窗体设计如下窗体控件对象名如下显示信息框：ShowMessageEdit输入信息框：WritcMessageEdit用户名显示列表：OnIineMeSSageLiSt关于按钮：aboutButton发送按钮：SendB

3、utton界面等操作到此结束！!2023 年 12 月 8 日 16:47:31代码贴在后面。7/昆：代码写完后编译会出错！在C_S_Socket.pro工程文件的最后加上QT+=network编译就不会出错了(不知道什么意思，难道是为Qt参加网络的支持？)代码#ifndefMAINDLGH#defineMAINDLG_H#includcnamespaceUiclassMainDlg;classMainDlg:publicQDialogQ_OBJECTpublic:MainDlg(QWidget*parent=O);-MainDlgO;boolm_bool_server;判断选择的方式prot

4、ected:voidchangeEvent(QEvcnt*e);voidshowChatWindow();voidsendEnterMessage(QString,QString);private:Ui:MainDlg*ui;voidenterSlot();voidOnSelectServerO;voidOnSelectClientO;；#endifMAINDLG_H#includemaindlg.h,r#include,uLmaindlg.h,#includeMainDlg:MainDlg(QWidget*parent):QDialog(parent),ui(newUi:MainDlg)ui

5、-setupUi(this);离开按钮点击事件的连接connect(ui-awayButton,SIGNAL(clicked(),qApp,SLOT(quit();进入按钮点击事件的连接connect(ui-enterButton,SIGNAL(clicked(),this,SLOT(enterSlot();选择效劳器单项选择按钮点击事件的连接connect(ui-radioButton_Server,SIGNAL(clicked(),this,SLOT(OnSelectServer();选择客户端单项选择按钮点击事件的连接connect(ui-radioButton-Client,SIGNA

6、L(clickcd(),this,SLOT(OnSelectClient();MainDlg-MainDIgOdeleteui;产*选择效劳器单项选择按钮的点击消息voidMainDlg:OnSelectServer()m_bool_server=true;ui-lineEdicAddress-setTcxt(,n,);if(ui-lineEdit-Namc-text().isEmpty()ui-lincEdit_Name-text()=,Clicnt)ui-lineEdicName-setText(,Server);*选择客户端单项选择按钮的点击消息voidMainDlg:OnSclectC

7、lient()m_booLserver=false;ui-lineEdit-Address-setText(,l27.0.0.);if(ui-lineEdit_Name-text().isEmpty()ui-lineEdit_Name-text()=,ServerM)ui-lineEdit_Name-setText(Client);voidMainDlg:changeEvent(QEvent*e)QDialog:changeEvent(e);switch(e-type()caseQEvent:LanguageChange:ui-retranslateUi(this);break;default

8、:break;voidMainDlg:enterSlot()if(ui-lineEdit_Name-text().isEmptyO)QMessageBoxmess;mess.setFont(QFont(SansSerif12,50);mess.warning(this,QString:ifroniLocalSBitC11出错)，QString:zfronLocal8Bit(,请输入正确的昵称,谢谢!);return;发射信号emitsendEterMessage(iL-lieEdit-Nae-text()1ui-lineEtext();emitshowChatWindow();#ifndefC

9、HAT_HdefineCHAT_H#include#includemaindlg.h,r#include#includelcp协议的效劳器监听连接类#includeTcp协议的Socket类#incluclenamespaceUiclasschat;ClaSSchat:publicQDialogQ_OBJECTpublic:chat(QWidget*parunt=0);chat();voidSOCkUtSerVCr0;启动效劳器监听连接voidsocketCliet(QStringhost)/与效劳器连接MainDlg*p_my_dlg;主界面指针intPOrtJ/端口号QStringm_st

10、r_userName;用户名boolrn_bool_servur;是效劳器还是客户端/cp协议的效劳器Socket类QTcpServer*m_p_server;/Tcp协议的效劳器监听连接类QTcpSocket*m_p_serverSoket;效劳器SocketQTcpSocket*m_p_clientSOCket;客户端SocketQDateTimenowDateTie;时间protected:voidchangeEvent(QEvent*e);private:Ui:Chat*ui;voidShOWAndHideSlOt();显示本窗体关闭主窗体voidChangCBUttOnStatCSI

11、Ot();/如果输入框为空，那么发送按钮不能使用voidCreateAboUtSIOt();关于信息voidcnterSlot(QStringname,QStringhost);选择效劳器或客户端voidncwConncctionSlot()y/连接来时，效劳器与客户端创立连接voidnewDataSlot();有数据来时voiddcleNameSlot();/voidaddSlot();voidappcndMessagcSlot();；#endifCHAT-H#includechat.h#includeui_chat.h#includechat:xhat(QWidget*parent):QD

12、ialog(parent),ui(newUi:chat)Iui-setupUi(this);设置UI设计的界面的控件m_p_server=NULL;m_p_serverSocket=NULL;m_p_c1ientSocket=NULL;p_my_dlg=newMainDIg，主界面p_my_dlg-show();显示主界面*连接信号主窗体中显示本窗体信号connect(p_my_dlg,SlGNAL(ShowChatWindowO),this,SLOT(showAndHideSlotO);ConneCt(p_my_dlg,SIGNAL(sendEnterMessage(QString,QStr

13、ing),this,SLOT(enterSlot(QString,QString);connect(ui-writeMessageEdit,SIGNAL(IextChangedO),this,SLOT(ChangeButtonStateSIotO);COnneCt(Ui-XiboutButton,SIGNAL(CIiCkUd(),this,SLOT(createAboutSlot();connect(ui-sendButton,SlGNAL(clicked(),this,SLOT(appendMessageSlot();Chat:chat()deleteui;本窗体创立时由系统自动调用void

14、chat:xhangeEvent(QEvent*e)QDialogixhangeEvent(C);switch(e-type()caseQEventziLanguageChange:ui-rctranslatcUi(this);/设置本船体的些属性break;default:break;显示关闭主窗体，显示本窗体voidChat:ShOWAndHideSIUt()deletep_my_dlg;this-show();显示关于信息voidchat:XreateAboutSlotOQMessageBoxmess;mess.setFont(QFont(,rSansSerif,12,50);mess.warning(this,QStrirg=fromLal8Bit(关于),QString:fromLo