qt 使用qtxlsx 读写excel

https://github.com/dbzhang800/QtXlsxWriter 下载qtxlsx地址

QtXlsx is a library that can read and write Excel files. It doesn't require Microsoft Excel and can be used in any platform that Qt5 supported. The library can be used to

• Generate a new .xlsx file from scratch
• Extract data from an existing .xlsx file
• Edit an existing .xlsx file

Getting Started

• For linux user, if your Qt is installed through package manager tools such "apt-get", make sure that you have installed the Qt5 develop package qtbase5-private-dev

Usage(1): Use Xlsx as Qt5's addon module

Building the module

Note: Perl is needed in this step.

• Download the source code.

• Put the source code in any directory you like

• Go to top directory of the project in a terminal and run

    qmake
    make
    make install

The library, the header files, and others will be installed to your system.

make html_docs can be used to generate documentations of the library, and make check can be used to run unit tests of the library.

Using the module

• Add following line to your qmake's project file:

    QT += xlsx

• Then, using Qt Xlsx in your code

    #include >
    int main() { QXlsx::Document xlsx; xlsx.write("A1", "Hello Qt!"); xlsx.saveAs("Test.xlsx"); return 0; }

Usage(2): Use source code directly

The package contains a qtxlsx.pri file that allows you to integrate the component into applications that use qmake for the build step.

• Download the source code.

• Put the source code in any directory you like. For example, 3rdparty:

    |-- project.pro
    |-- ....
    |-- 3rdparty\
    |     |-- qtxlsx\
    |     |

• Add following line to your qmake project file:

    include(3rdparty/qtxlsx/src/xlsx/qtxlsx.pri)

Note: If you like, you can copy all files from src/xlsx to your application's source path. Then add following line to your project file:

include(qtxlsx.pri)

> **Note**: If you do not use qmake, you need to define the following macro manually

> ```
    XLSX_NO_LIB

• Then, using Qt Xlsx in your code

    #include "xlsxdocument.h"
    int main() { QXlsx::Document xlsx; xlsx.write("A1", "Hello Qt!"); xlsx.saveAs("Test.xlsx"); return 0; }

在构建的时候，可能会有如下的错误，

 

xlsxzipreader.cpp: In member function ‘void QXlsx::ZipReader::init()’:
xlsxzipreader.cpp:51:66: error: conversion from ‘QVector’ to non-scalar type ‘QList’ requested
     QList allFiles = m_reader->fileInfoList();

 

这里只需要吧出错的文件添加 :
 #include
然后把出错的地方的"QList" 用"QVector" 替换掉重新构建就可以了。

 简单的写excel：

void BurnTaskWidget::OnExportButtonClick()
{
    QXlsx::Document z_xlsx;
    QStringList z_titleList;
    QString z_filePathName;
    QString z_defaultFileName = "刻录任务汇总.xls";

    // 设置保存的默认文件名称 文件名_当前时间.xls
    QFileInfo z_fileinfo(z_defaultFileName);
    QDateTime z_curDateTime = QDateTime::currentDateTime();
    QString z_strCurTime = z_curDateTime.toString("yyyyMMddhhmmss");
    z_defaultFileName = z_fileinfo.baseName() + "_" + z_strCurTime + ".xls";

    // 获取保存文件路径
    QFileDialog *z_fileDlg = new QFileDialog(this);
    z_fileDlg->setWindowTitle("保存文件");
    z_fileDlg->setAcceptMode(QFileDialog::AcceptSave);
    z_fileDlg->selectFile(z_defaultFileName);
    z_fileDlg->setNameFilter("Excel Files(*.xls *.xlsx)");
    z_fileDlg->setDefaultSuffix("xls");

    if (z_fileDlg->exec() == QDialog::Accepted)
    {
        z_filePathName = z_fileDlg->selectedFiles().at(0);
    }

    // 保存文件添加后缀名
    z_fileinfo =  QFileInfo(z_filePathName);
    if (z_fileinfo.suffix() != "xls" && z_fileinfo.suffix() != "xlsx")
    {
        z_filePathName += ".xls";
    }

    // 设置excel任务标题
    z_titleList << "流水号" << "光盘名称" << "密级" << "提交人" << "部门" << "申请时间" << "任务状态";
    for (int i = 0; i < z_titleList.size(); i++)
    {
        z_xlsx.write(1, i+1, z_titleList.at(i));
    }

    // 设置烈宽
    z_xlsx.setColumnWidth(1, 20);
    z_xlsx.setColumnWidth(2, 20);
    z_xlsx.setColumnWidth(3, 10);
    z_xlsx.setColumnWidth(4, 15);
    z_xlsx.setColumnWidth(5, 20);
    z_xlsx.setColumnWidth(6, 25);
    z_xlsx.setColumnWidth(7, 10);

    // 获取表格内容设置excel
    int z_row = modelBurnTask->rowCount();
    int z_col = modelBurnTask->columnCount() - 1;// 最后一列为图标，不保存
    for (int i = 0; i < z_row; i++)
    {
        for (int j = 0; j < z_col; j++)
        {
            z_xlsx.write(i+2, j+1 ,modelBurnTask->index(i, j).data().toString());
        }
    }

    // 保存文件
    z_xlsx.saveAs(z_filePathName);
}

　　

读写方法：

 读：

void FlightPlanWid::readExcel(QString path)
{
    QXlsx::Document xlsx(path);
    QXlsx::Workbook *workBook = xlsx.workbook();
    QXlsx::Worksheet *workSheet = static_cast(workBook->sheet(0));
    ui.tableWidget->setRowCount(workSheet->dimension().rowCount());
    ui.tableWidget->setColumnCount(23);
    QString value;
    for (int i = 6; i <= workSheet->dimension().rowCount(); i++)
    {
        for (int j = 1; j <= workSheet->dimension().columnCount(); j++)
        {
            QXlsx::Cell *cell = workSheet->cellAt(i, j);
            if (cell==NULL) continue;
            if (cell->isDateTime())//日期
            {
                if (cell->dateTime().date().year()==1899) continue;
                value = cell->dateTime().toString("yyyy/MM/dd hh:mm");
            }    
            else
            {
                value = cell->value().toString();
            }
            setItemValue(i - 6, j - 1, value);
        }
    }
    for (int i = ui.tableWidget->rowCount() - 1; i >= 0; i--)//删除末尾空白行
    {
        QTableWidgetItem *item = ui.tableWidget->item(i, 0);
        if (item==NULL)
            ui.tableWidget->removeRow(i);
        else break;
    }
}

　　写：

void FlightPlanWid::saveBtnClickedSlot()
{
    if (currentScriptIndex == -1) return;
    QXlsx::Document xlsx;
    QString value;
    for (int i = 0; i < ui.tableWidget->rowCount(); i++)
    {
        for (int j = 0; j < ui.tableWidget->columnCount(); j++)
        {
            QTableWidgetItem *item = ui.tableWidget->item(i, j);
            if (item == NULL)
                value = "";
            else
                value = item->text();
            xlsx.write(i + 1, j + 1, value);
        }
    }
    if (xlsx.saveAs("./Data/Saved/" + ui.nameEdt->text() + ".xlsx"))
        QMessageBox::information(this, "保存", "保存成功！", QMessageBox::Ok);
}

　　

 

对于Qt Xlsx （ QtXlsxWriter ） 的安装请参考： 
http://blog.csdn.net/woshidahuaidan2011/article/details/52724452 
这里主要介绍其基本的编程使用方法。 
首先我们想到就是对xlsx文件进行读写，因此我们有如下的代码：

#include >
#include "xlsxdocument.h" #include "xlsxformat.h" #include "xlsxcellrange.h" #include "xlsxchart.h" int main() { QXlsx::Document xlsx("book1.xlsx");/*打开一个book1的文件*/ QXlsx::Format format1;/*设置该单元的样式*/ format1.setFontColor(QColor(Qt::red));/*文字为红色*/ format1.setPatternBackgroundColor(QColor(152,251,152));/*北京颜色*/ format1.setFontSize(15);/*设置字体大小*/ format1.setHorizontalAlignment(QXlsx::Format::AlignHCenter);/*横向居中*/ format1.setBorderStyle(QXlsx::Format::BorderDashDotDot);/*边框样式*/ xlsx.write("A1", "Hello Qt!", format1);/*写入文字，应该刚才设置的样式*/ xlsx.write(2, 1, 12345, format1);/*写入文字，应该刚才设置的样式*/ QXlsx::Format format2;/*重新设置另一个单元的样式*/ format2.setFontBold(true);/*设置加粗*/ format2.setFontUnderline(QXlsx::Format::FontUnderlineDouble);/*下双划线*/ format2.setFillPattern(QXlsx::Format::PatternLightUp);/*填充方式*/ xlsx.write("A4", "=44+33", format2);/*写入文字，应该刚才设置的样式*/ xlsx.write("C4", true, format2); xlsx.saveAs("book1.xlsx");/*保存*/ QXlsx::Document xlsx2("Book1.xlsx");/*复制book1到book2*/ xlsx2.saveAs("Book2.xlsx"); return 0; }

 

其运行效果如下： 

接下来我们处理数据的是很多时候需要插入折线图、饼状图等等来图像化的处理数据，因此我们可以可以在原有代码上添加一段代码，使之添加一个sheet而且插入饼状图及其条形图：

#include >
#include "xlsxdocument.h" #include "xlsxformat.h" #include "xlsxcellrange.h" #include "xlsxchart.h" int main() { QXlsx::Document xlsx("book1.xlsx");/*打开一个book1的文件*/ QXlsx::Format format1;/*设置该单元的样式*/ format1.setFontColor(QColor(Qt::red));/*文字为红色*/ format1.setPatternBackgroundColor(QColor(152,251,152));/*北京颜色*/ format1.setFontSize(15);/*设置字体大小*/ format1.setHorizontalAlignment(QXlsx::Format::AlignHCenter);/*横向居中*/ format1.setBorderStyle(QXlsx::Format::BorderDashDotDot);/*边框样式*/ xlsx.write("A1", "Hello Qt!", format1);/*写入文字，应该刚才设置的样式*/ xlsx.write(2, 1, 12345, format1);/*写入文字，应该刚才设置的样式*/ QXlsx::Format format2;/*重新设置另一个单元的样式*/ format2.setFontBold(true);/*设置加粗*/ format2.setFontUnderline(QXlsx::Format::FontUnderlineDouble);/*下双划线*/ format2.setFillPattern(QXlsx::Format::PatternLightUp);/*填充方式*/ xlsx.write("A4", "=44+33", format2);/*写入文字，应该刚才设置的样式*/ xlsx.write("C4", true, format2); if(!xlsx.selectSheet("ziv")){/*在当前打开的xlsx文件中，找一个名字为ziv的sheet*/ xlsx.addSheet("ziv");//找不到的话就添加一个名为ziv的sheet } for (int i=10; i<20; ++i) {/*写入一串数字*/ xlsx.write(i, 1, i*i*i); //A10:A19 xlsx.write(i, 2, i*i); //B10:B19 xlsx.write(i, 3, i*i-1); //C10:C19 } QXlsx::Chart *pieChart = xlsx.insertChart(3, 5, QSize(300, 300));/*在3行5列的位置插入一个图标*/ pieChart->setChartType(QXlsx::Chart::CT_Pie);/*插入一个饼形图*/ pieChart->addSeries(QXlsx::CellRange("A10:A19"));/*饼形图添加数据*/ pieChart->addSeries(QXlsx::CellRange("B10:B19")); pieChart->addSeries(QXlsx::CellRange("C10:C19")); QXlsx::Chart *barChart = xlsx.insertChart(3, 13, QSize(300, 300));/*在3行13列的位置插入一个图标*/ barChart->setChartType(QXlsx::Chart::CT_Bar);/*条形图*/ barChart->addSeries(QXlsx::CellRange("A10:C19"));/*给条形图加入数据*/ xlsx.saveAs("book1.xlsx");/*保存*/ QXlsx::Document xlsx2("Book1.xlsx");/*复制book1到book2*/ xlsx2.saveAs("Book2.xlsx"); return 0; } 

 

上面代码中运行效果如下： 

很多时候我们还需要添加图表来美化表格，代码如下：

#include >
#include > #include "xlsxdocument.h" #include "xlsxformat.h" #include "xlsxcellrange.h" #include "xlsxchart.h" int main() { QXlsx::Document xlsx("book1.xlsx");/*打开一个book1的文件*/ QXlsx::Format format1;/*设置该单元的样式*/ format1.setFontColor(QColor(Qt::red));/*文字为红色*/ format1.setPatternBackgroundColor(QColor(152,251,152));/*北京颜色*/ format1.setFontSize(15);/*设置字体大小*/ format1.setHorizontalAlignment(QXlsx::Format::AlignHCenter);/*横向居中*/ format1.setBorderStyle(QXlsx::Format::BorderDashDotDot);/*边框样式*/ xlsx.write("A1", "Hello Qt!", format1);/*写入文字，应该刚才设置的样式*/ xlsx.write(2, 1, 12345, format1);/*写入文字，应该刚才设置的样式*/ QXlsx::Format format2;/*重新设置另一个单元的样式*/ format2.setFontBold(true);/*设置加粗*/ format2.setFontUnderline(QXlsx::Format::FontUnderlineDouble);/*下双划线*/ format2.setFillPattern(QXlsx::Format::PatternLightUp);/*填充方式*/ xlsx.write("A4", "=44+33", format2);/*写入文字，应该刚才设置的样式*/ xlsx.write("C4", true, format2); if(!xlsx.selectSheet("ziv")){/*在当前打开的xlsx文件中，找一个名字为ziv的sheet*/ xlsx.addSheet("ziv");//找不到的话就添加一个名为ziv的sheet } for (int i=10; i<20; ++i) {/*写入一串数字*/ xlsx.write(i, 1, i*i*i); //A10:A19 xlsx.write(i, 2, i*i); //B10:B19 xlsx.write(i, 3, i*i-1); //C10:C19 } QXlsx::Chart *pieChart = xlsx.insertChart(3, 5, QSize(300, 300));/*在3行5列的位置插入一个图标*/ pieChart->setChartType(QXlsx::Chart::CT_Pie);/*插入一个饼形图*/ pieChart->addSeries(QXlsx::CellRange("A10:A19"));/*饼形图添加数据*/ pieChart->addSeries(QXlsx::CellRange("B10:B19")); pieChart->addSeries(QXlsx::CellRange("C10:C19")); QXlsx::Chart *barChart = xlsx.insertChart(3, 13, QSize(300, 300));/*在3行13列的位置插入一个图标*/ barChart->setChartType(QXlsx::Chart::CT_Bar);/*条形图*/ barChart->addSeries(QXlsx::CellRange("A10:C19"));/*给条形图加入数据*/ QImage image(40, 100, QImage::Format_RGB32);/*新建一个Qimage,大小40*100*/ image.fill(Qt::green);/*填充绿色*/ xlsx.insertImage(1, 1, image);/*插入图片*/ xlsx.saveAs("book1.xlsx");/*保存*/ QXlsx::Document xlsx2("Book1.xlsx");/*复制book1到book2*/ xlsx2.saveAs("Book2.xlsx"); return 0; } 

 

效果如下： 

到此为止对于Qt Xlsx 的使用应该可以满足大部分的需求，如有疑问欢迎留言指正，原文地址: 
http://blog.csdn.net/woshidahuaidan2011/article/details/53349163

转载于:https://www.cnblogs.com/wangjian8888/p/9176662.html