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。