Linux下QTcpsock 连本机都连不上的 [复制链接]

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离线pengyizhao2

新手上路

只看楼主倒序阅读楼主发表于: 2014-07-08

代码如下：
Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    ConnectToHost();
}

Widget::~Widget()
{
    delete ui;
}

void Widget::ConnectToHost()
{

  if(sock!=NULL)
  {
     sock->deleteLater();
     sock=NULL;
  }
    sock = new QTcpSocket();
    connect(sock,SIGNAL(stateChanged(QAbstractSocket::SocketState)),
    this,SLOT(slotSocketStateChange(QAbstractSocket::SocketState)));
    sock->connectToHost("127.0.0.1",12581);
}

void Widget::slotSocketStateChange(QAbstractSocket::SocketState state)
{
  qDebug()<<__FUNCTION__<<state;
  switch(state)
  {
      case QAbstractSocket::UnconnectedState:
      {
        ConnectToHost();
      }
  }
}

我在本机ping127.0.0.1都ping得通为什么
qDebug的结果一直都是：

slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState
slotSocketStateChange QAbstractSocket::ConnectingState
slotSocketStateChange QAbstractSocket::UnconnectedState
slotSocketStateChange QAbstractSocket::HostLookupState

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离线退避九舍

新手上路

只看该作者 1楼发表于: 2014-07-08

你确定在端口12581建立了TCP SERVER？

telnet 127.0.0.1 12581 看一下

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Linux下QTcpsock 连本机都连不上的 [复制链接]