QT UDP SOCKET編程

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1、QT建立控制臺項目,還是用最簡單的c/s模式.client端:UDPclient.h?#ifndefUDP_UDPclient_H#defineUDP_UDPclient_H#include#include#include#pragmaonce?classUDPclient:publicQObject{?Q_OBJECT?public:?voidInitSocket();privateslots:???voidRecv();};#e

2、ndifUDPclient.cpp?#include"UDPclient.h"QUdpSocket?*udpSocket;??//套接字對象voidUDPclient::InitSocket(){?udpSocket=newQUdpSocket(this);?udpSocket->bind(QHostAddress::Any,2002);?connect(udpSocket,SIGNAL(readyRead()),???this,SLOT(Recv()));}voidUDPclient::Recv(){??while(u

3、dpSocket->hasPendingDatagrams())?{???????QByteArraydatagram;???????datagram.resize(udpSocket->pendingDatagramSize());???????udpSocket->readDatagram(datagram.data(),datagram.size());??????????????????????????????for(inti=0;i

4、atagram.at(i));??}??printf("");???}}函數(shù)解釋:pendingDatagramSize?當(dāng)有數(shù)據(jù)包讀入時返回true.????????resize為datageam設(shè)置大小????????pendingDatagramSize返回udosocket第一個數(shù)據(jù)包的大小????????readDatagram讀數(shù)據(jù)包?server端,順便學(xué)習(xí)寫下個多進(jìn)程QThread:main.cpp?#include#include"UDP_QT.h"intma

5、in(intargc,char*argv[]){???UDP_QTServer;?QCoreApplicationa(argc,argv);?Server.InitSocket();?Server.start();//進(jìn)程開始???returna.exec();}UDP_QT.h?#ifndefUDP_QT_H#defineUDP_QT_H#include#include#include#pragmaonce?classUDP_QT

6、:publicQThread{private:???voidSend();public:?voidInitSocket();?voidrun();};#endif??UDP_QT.cpp?#include"UDP_QT.h"QUdpSocket?*udpSocket;??//套接字對象charToAddress[20]="10.144.123.237";voidUDP_QT::InitSocket(){?udpSocket=newQUdpSocket(this);}voidUDP_QT::Send(){?charinfo

7、rmation[]="adg";?while(1)?{??udpSocket->writeDatagram(information,QHostAddress(ToAddress),2002);????printf("senddatagram:");???for(inti=0;i

8、p函數(shù)要在進(jìn)程下才能使用,它繼承QThread?}}voidUDP_QT::run()//運行進(jìn)程{?Send();}