qt中使用无法使用MySQL驱动该怎么解决啊？？？求大佬解答解答

weixin_40842562 2019-01-12 01:32:12

在编译好arm版本的MySQL驱动libqsqlmysql.so驱动，在移植到嵌入式设备上执行显示下面的这个情况，说是驱动没有加载，但是明明驱动已经放到了plugin中的sqldriver中的，但是显示还是没有加载驱动！！！求大佬帮忙，已经卡在这很久了。实在是解决不了。

下面是我用来测是mysql驱动的程序的main.cpp文件：



#include "widget.h"

#include <QApplication>

#include<QtSql/QSqlDatabase>

#include<QtSql/QSqlQuery>

extern "C"{

#include "stdio.h"

}

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    Widget w;

    QSqlQuery query;

    QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL");

    db.setHostName("192.168.12.95");

    db.setDatabaseName("finger");

    db.setUserName("finger");

    db.setPassword("qrszwxt");

    db.setPort(3306);

    if(db.open())

    {

        w.show();

        printf("successful!!!\n");



    }else{

        printf("lianjie failed!\n");



}



    return a.exec();

}

.pro中的文件内容是：



#-------------------------------------------------

#

# Project created by QtCreator 2018-12-27T16:07:30

#

#-------------------------------------------------



QT       += core gui sql



greaterThan(QT_MAJOR_VERSION, 4): QT += widgets



TARGET = untitled10

TEMPLATE = app



# The following define makes your compiler emit warnings if you use

# any feature of Qt which has been marked as deprecated (the exact warnings

# depend on your compiler). Please consult the documentation of the

# deprecated API in order to know how to port your code away from it.

DEFINES += QT_DEPRECATED_WARNINGS



# You can also make your code fail to compile if you use deprecated APIs.

# In order to do so, uncomment the following line.

# You can also select to disable deprecated APIs only up to a certain version of Qt.

#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0





SOURCES += \

        main.cpp \

        widget.cpp



HEADERS += \

        widget.h



FORMS += \

        widget.ui