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 <QtXlsx>
    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<QZipReader::FileInfo>’ to non-scalar type ‘QList<QZipReader::FileInfo>’ requested
     QList<QZipReader::FileInfo> allFiles = m_reader->fileInfoList();

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

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 <QtCore>
#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 <QtCore>
#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 <QtCore>
#include <QtGui>
#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