QDataStream传递自定义的数据类型

QT自带的QDataStream只能传递它自己要求的数据类型。但是我们可以自己重载QDataStream& operator<<()和QDataStream& operator>>();

mydatastream.h

#ifndef MYDATASTREAM_H
#define MYDATASTREAM_H

#include <QDataStream>

    struct UserInfor{
        QString id;
        QString state;
        QString ip;
        QString port;
        QString nickName;
        QByteArray headPhoto;
        QString discription;
    };

    inline QDataStream& operator<<(QDataStream& out, const UserInfor& userInfor)
    {
        out<<userInfor.id<<userInfor.state<<userInfor.ip<<userInfor.port<<
             userInfor.nickName<<userInfor.headPhoto<<userInfor.discription;
        return out;
    }

    inline QDataStream& operator>>(QDataStream& in,UserInfor& userInfor)
    {
        in>>userInfor.id>>userInfor.state>>userInfor.ip>>userInfor.port>>userInfor.nickName
            >>userInfor.headPhoto>>userInfor.discription;
       return in;
    }

#endif // MYDATASTREAM_H

这样我们就可以传递struct的类型了