控制台 CoAP 客户端范例

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**
** Copyright (C) 2017 Witekio.
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCoap module.
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** $QT_BEGIN_LICENSE:GPL$
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#ifndef COAPHANDLER_H
#define COAPHANDLER_H
#include <QObject>
#include <QCoapClient>
#include <QCoapMessage>
#include <QCoapResource>
#include <qcoapnamespace.h>
class QCoapReply;
class QCoapResourceDiscoveryReply;
class QCoapResource;
class CoapHandler : public QObject
{
    Q_OBJECT
public:
    explicit CoapHandler(QObject *parent = nullptr);
    bool runGet(const QUrl &url);
    bool runPost(const QUrl &url);
    bool runPut(const QUrl &url);
    bool runDelete(const QUrl &url);
    bool runObserve(const QUrl &url);
    bool runDiscover(const QUrl &url);
public Q_SLOTS:
    void onFinished(QCoapReply *reply);
    void onNotified(QCoapReply *reply, QCoapMessage message);
    void onDiscovered(QCoapResourceDiscoveryReply *reply, QList<QCoapResource> resources);
    void onResponseToMulticast(QCoapReply *reply, const QCoapMessage& message,
                               const QHostAddress &sender);
    void onError(QCoapReply *reply, QtCoap::Error error);
private:
    QCoapClient m_coapClient;
};
#endif // COAPHANDLER_H