1

基本上代码的目标是在单击按钮后打开一个包含 QWebView （带有一些内容）的对话框

这就是我所做的：

主窗口.h：

class MainWindow : public QMainWindow, public Ui::MainWindowUi
{
    ...
    private slots:
    void on_ViewDatabase_clicked();
    ...
}

主窗口.cpp： 

#include "mainwindow.h"
#include "onlinedb.h"



void MainWindow::on_ViewDatabase_clicked()
{

    OnlineDB dlg(this);
    dlg.exec();
}

在线数据库.h：

#ifndef OnlineDB_H
#define OnlineDB_H


#include "ui_onlinedb.h"
#include <QDialog>


class MainWindow;

class OnlineDB : public QDialog, public Ui::OnlineDB
{
    Q_OBJECT

public:
    OnlineDB(LkMainWindow *parent);
    ~OnlineDB();

private:
    MainWindow  *MainWindow;

};


#endif

在线数据库.cpp：

#include "onlinedb.h"
#include "mainwindow.h"

///////////////////////////////////////////////////////////////////////////////
//
// OnlineDB class constructor
//
// Create a OnlineDB
//
OnlineDB::OnlineDB(MainWindow *parent) : QDialog(parent), MainWindow(parent)
{
    setupUi(this);
    QUrl url("http://google.com"); //whatever
    webView->load(url);
}



///////////////////////////////////////////////////////////////////////////////
//
// OnlineDB class destructor
//
// Clean up the OnlineDB
//
OnlineDB::~OnlineDB()
{

}

我有几个链接错误

请问有人可以帮忙吗？

3>Linking...
3>onlinedb.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __thiscall QWebView::load(class QUrl const &)" (__imp_?load@QWebView@@QAEXABVQUrl@@@Z) referenced in function "public: __thiscall OnlineDB::OnlineDB(class LkMainWindow *)" (??0OnlineDB@@QAE@PAVLkMainWindow@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall OnlineDB::metaObject(void)const " (?metaObject@OnlineDB@@UBEPBUQMetaObject@@XZ)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual void * __thiscall OnlineDB::qt_metacast(char const *)" (?qt_metacast@OnlineDB@@UAEPAXPBD@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall OnlineDB::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall@OnlineDB@@UAEHW4Call@QMetaObject@@HPAPAX@Z)
3>onlinedb.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __thiscall QWebView::setUrl(class QUrl const &)" (__imp_?setUrl@QWebView@@QAEXABVQUrl@@@Z) referenced in function "public: void __thiscall Ui_OnlineDB::setupUi(class QDialog *)" (?setupUi@Ui_OnlineDB@@QAEXPAVQDialog@@@Z)
3>onlinedb.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall QWebView::QWebView(class QWidget *)" (__imp_??0QWebView@@QAE@PAVQWidget@@@Z) referenced in function "public: void __thiscall Ui_OnlineDB::setupUi(class QDialog *)" (?setupUi@Ui_OnlineDB@@QAEXPAVQDialog@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall QWebView::metaObject(void)const " (?metaObject@QWebView@@UBEPBUQMetaObject@@XZ)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual void * __thiscall QWebView::qt_metacast(char const *)" (?qt_metacast@QWebView@@UAEPAXPBD@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall QWebView::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall@QWebView@@UAEHW4Call@QMetaObject@@HPAPAX@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QWebView::event(class QEvent *)" (?event@QWebView@@UAE_NPAVQEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual class QSize __thiscall QWebView::sizeHint(void)const " (?sizeHint@QWebView@@UBE?AVQSize@@XZ)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::mousePressEvent(class QMouseEvent *)" (?mousePressEvent@QWebView@@MAEXPAVQMouseEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::mouseReleaseEvent(class QMouseEvent *)" (?mouseReleaseEvent@QWebView@@MAEXPAVQMouseEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::mouseDoubleClickEvent(class QMouseEvent *)" (?mouseDoubleClickEvent@QWebView@@MAEXPAVQMouseEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::mouseMoveEvent(class QMouseEvent *)" (?mouseMoveEvent@QWebView@@MAEXPAVQMouseEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::wheelEvent(class QWheelEvent *)" (?wheelEvent@QWebView@@MAEXPAVQWheelEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::keyPressEvent(class QKeyEvent *)" (?keyPressEvent@QWebView@@MAEXPAVQKeyEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::keyReleaseEvent(class QKeyEvent *)" (?keyReleaseEvent@QWebView@@MAEXPAVQKeyEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::focusInEvent(class QFocusEvent *)" (?focusInEvent@QWebView@@MAEXPAVQFocusEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::focusOutEvent(class QFocusEvent *)" (?focusOutEvent@QWebView@@MAEXPAVQFocusEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::paintEvent(class QPaintEvent *)" (?paintEvent@QWebView@@MAEXPAVQPaintEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::resizeEvent(class QResizeEvent *)" (?resizeEvent@QWebView@@MAEXPAVQResizeEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::contextMenuEvent(class QContextMenuEvent *)" (?contextMenuEvent@QWebView@@MAEXPAVQContextMenuEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::dragEnterEvent(class QDragEnterEvent *)" (?dragEnterEvent@QWebView@@MAEXPAVQDragEnterEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::dragMoveEvent(class QDragMoveEvent *)" (?dragMoveEvent@QWebView@@MAEXPAVQDragMoveEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::dragLeaveEvent(class QDragLeaveEvent *)" (?dragLeaveEvent@QWebView@@MAEXPAVQDragLeaveEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::dropEvent(class QDropEvent *)" (?dropEvent@QWebView@@MAEXPAVQDropEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::changeEvent(class QEvent *)" (?changeEvent@QWebView@@MAEXPAVQEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall QWebView::inputMethodEvent(class QInputMethodEvent *)" (?inputMethodEvent@QWebView@@MAEXPAVQInputMethodEvent@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "public: virtual class QVariant __thiscall QWebView::inputMethodQuery(enum Qt::InputMethodQuery)const " (?inputMethodQuery@QWebView@@UBE?AVQVariant@@W4InputMethodQuery@Qt@@@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual bool __thiscall QWebView::focusNextPrevChild(bool)" (?focusNextPrevChild@QWebView@@MAE_N_N@Z)
3>onlinedb.obj : error LNK2001: unresolved external symbol "protected: virtual class QWebView * __thiscall QWebView::createWindow(enum QWebPage::WebWindowType)" (?createWindow@QWebView@@MAEPAV1@W4WebWindowType@QWebPage@@@Z)
3>onlinedb.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall QWebView::~QWebView(void)" (__imp_??1QWebView@@UAE@XZ) referenced in function "public: virtual void * __thiscall QWebView::`scalar deleting destructor'(unsigned int)" (??_GQWebView@@UAEPAXI@Z)
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1 回答 1

1 
unresolved external symbol "public: virtual int __thiscall OnlineDB::qt_metacall(enum QMetaObject::Call,int,void * *)

你没有moc'd你的OnlineDB或者你没有链接objectfile。

error LNK2019: unresolved external symbol "__declspec(dllimport) public: void _thiscall QWebView::load(class QUrl const &)"

您还没有链接到所有必要的 Qt 库。QWebView在QtWebKit图书馆里。

于 2013-03-09T19:30:37.453 回答