| yangli2007 |
2019-10-23 16:12 |
多线程中UDP无法收到数据是什么原因呢？
我写了个简单的多线程UDP的发送接收测试代码，数据能发出去，但是不能收到数据，各位大神，能帮我解决下嘛？
#include "mythread.h"#include<QDebug>
Mythread::Mythread(QObject *parent) : QThread(parent){}void Mythread::readmsg(){ qDebug()<<"--Read--"; while (udpsock->hasPendingDatagrams()) { QByteArray array; array.resize(udpsock->bytesAvailable()); //将接收数据的array设置成为要接收数据的大小 QHostAddress recvaddress; quint16 port; udpsock->readDatagram(array.data(),array.size(),&recvaddress,&port); //读取数据 qDebug()<<array;}}void Mythread::run(){ qDebug()<<"--output----"; udpsock = new QUdpSocket(); sendaddrees.setAddress("192.168.100.101"); udpsock->bind(QHostAddress::AnyIPv4,50000); connect(udpsock,SIGNAL(readyRead()),this,SLOT(readmsg()),Qt::DirectConnection);
QString str="@00813200100875210\r\n";
udpsock->writeDatagram(str.toUtf8(),sendaddrees,50000);}--------------------------------------------------------------------------------------------------------
#include "mainwindow.h"#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow){ ui->setupUi(this);}
MainWindow::~MainWindow(){ delete ui;}
void MainWindow::on_pushButton_clicked(){ mytest =new Mythread(); mytest->start();}
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