QT操作EXCEL

  1 #include <QAxObject>
  2 #include <QDir>
  3 #include <QFile>
  4 class Range:QObject
  5 {
  6 public:
  7     Range(QAxObject* p,QObject* parent=nullptr):QObject(parent) { m_pRange = p; }
  8     ~Range()
  9     {
 10     }
 11 public:
 12     //垂直居中
 13     Range* Vcenter()  
 14     {
 15         m_pRange->setProperty("VerticalAlignment", -4108);
 16         return this;
 17     }
 18     //水平居中
 19     Range* Hcenter()  
 20     {
 21         m_pRange->setProperty("HorizontalAlignment", -4108);
 22         return this;
 23     }
 24     //行高
 25     Range* RowHeight(int nHeight)
 26     {
 27         m_pRange->setProperty("RowHeight", nHeight);
 28         return this;
 29     }
 30     //列宽
 31     Range* ColumnWidth(int nWidth)
 32     {
 33         m_pRange->setProperty("ColumnWidth", nWidth);
 34         return this;
 35     }
 36     //自动换行
 37     Range* AutoWrapText()
 38     {
 39         m_pRange->setProperty("WrapText", true); //内容过多，自动换行
 40         return this;
 41     }
 42     //背景色
 43     Range* BackgroundColor(QColor crBg)
 44     {
 45         QAxObject* interior = m_pRange->querySubObject("Interior");
 46         interior->setProperty("Color", crBg);
 47         return this;
 48     }
 49     Range* BorderColor(QColor crBorder)
 50     {
 51         QAxObject* border = m_pRange->querySubObject("Borders");
 52         border->setProperty("Color", crBorder); //设置单元格边框色（蓝色）
 53         /*
 54         .LineStyle = xlContinuous   border->setProperty("LineStyle", 4);,下面类同
 55         .ColorIndex = 0
 56         .TintAndShade = 0
 57         .Weight = xlThin*/
 58         return this;
 59     }
 60     //设置值
 61     Range* Value(QVariant v)
 62     {
 63         m_pRange->dynamicCall("Value", v);
 64         return this;
 65     }
 66     //设置字体
 67     Range* Font(QString strFaceName, bool bBold, bool bItalic, int nSize, QColor crText)
 68     {
 69         QAxObject *font = m_pRange->querySubObject("Font");  //获取单元格字体
 70         font->setProperty("Name", strFaceName);  //设置单元格字体font->setProperty("Name", QStringLiteral("华文彩云"));  //设置单元格字体
 71         font->setProperty("Bold", bBold);  //设置单元格字体加粗
 72         font->setProperty("Size", nSize);  //设置单元格字体大小
 73         font->setProperty("Italic", bItalic);  //设置单元格字体斜体
 74         //font->setProperty("Underline", 2);  //设置单元格下划线
 75         font->setProperty("Color", crText);  //设置单元格字体颜色（红色）
 76         return this;
 77     }
 78 private:
 79     QAxObject* m_pRange;
 80 };
 81 class ExcelHelper:public QObject
 82 {
 83 public:
 84     ExcelHelper(QObject* parent = nullptr);
 85     void Open(const QString &fileName, bool bVisible=true);
 86     void New(bool bVisible=true);
 87     void ActiveSheet(int nItem);                                                //激活sheet
 88     void ActiveSheet(const QString &sheetName);                                    //激活sheet
 89     void AddSheet(const QString &sheetName);
 90 
 91     Range* GetRange(int row, int column);//获得一个单元格区域
 92     Range* GetRange(QString str);//获得一个区域,如A3:B18或A1
 93     void SetCellValue(int row, int column,const QVariant &value);
 94     void Save(const QString &fileName);
 95     void Close();
 96 
 97     QAxObject    *m_pApplication;
 98     QAxObject    *m_pWorkBooks;
 99     QAxObject    *m_pWorkBook;
100     QAxObject    *m_pSheets;
101     QAxObject    *m_pActiveSheet;
102 };
View Code

CPP：

 1 #include "stdafx.h"
 2 #include "ExcelHelper.h"
 3 ExcelHelper::ExcelHelper(QObject* parent) :QObject(parent)
 4 {
 5     m_pApplication = new QAxObject();
 6     m_pApplication->setControl("Excel.Application"); //连接Excel控件
 7 }
 8 
 9 
10 void ExcelHelper::Open(const QString &fileName, bool bVisible)
11 {
12     QFile file(fileName);
13     if (file.exists())
14     {
15         m_pApplication->dynamicCall("SetVisible(bool)", bVisible); //是否显示窗体
16         m_pApplication->setProperty("DisplayAlerts", false); //不显示任何警告信息。
17         m_pWorkBooks = m_pApplication->querySubObject("Workbooks");
18         m_pWorkBook = m_pWorkBooks->querySubObject("Open(const QString &)", fileName);
19         //默认有一个sheet
20         m_pSheets = m_pWorkBook->querySubObject("Sheets");
21         m_pActiveSheet = m_pSheets->querySubObject("Item(int)", 1);
22     }
23     else
24     {
25         QMessageBox::critical(nullptr, T("系统提示"), T("打开:") + fileName + T("失败,请确认该文件存在并未被占用"));
26     }
27 }
28 //新建Execl文件
29 void ExcelHelper::New(bool bVisible)
30 {
31     m_pApplication->dynamicCall("SetVisible(bool)", bVisible); //是否显示窗体
32     m_pApplication->setProperty("DisplayAlerts", false); //不显示任何警告信息。
33     m_pWorkBooks = m_pApplication->querySubObject("Workbooks");
34     m_pWorkBooks->dynamicCall("Add");
35     m_pWorkBook = m_pApplication->querySubObject("ActiveWorkBook");
36     //默认有一个sheet
37     m_pSheets = m_pWorkBook->querySubObject("Sheets");
38     m_pActiveSheet = m_pSheets->querySubObject("Item(int)", 1);
39 }
40 void ExcelHelper::ActiveSheet(int nItem)
41 {
42     m_pActiveSheet = m_pSheets->querySubObject("Item(int)", nItem);
43     m_pActiveSheet->dynamicCall("Select");
44 }
45 void ExcelHelper::ActiveSheet(const QString &sheetName)
46 {
47     m_pActiveSheet = m_pWorkBook->querySubObject("Sheets(string)", sheetName);
48     m_pActiveSheet->dynamicCall("Select");
49 }
50 
51 void ExcelHelper::AddSheet(const QString &sheetName)
52 {
53     int cnt = 1;
54     QAxObject *pLastSheet = m_pSheets->querySubObject("Item(int)", cnt);
55     m_pSheets->querySubObject("Add(QVariant)", pLastSheet->asVariant());
56     m_pActiveSheet = m_pSheets->querySubObject("Item(int)", cnt);
57     pLastSheet->dynamicCall("Move(QVariant)", m_pActiveSheet->asVariant());
58     m_pActiveSheet->setProperty("Name", sheetName);
59 }
60 
61 void ExcelHelper::SetCellValue(int row, int column, const QVariant &value)
62 {
63     QAxObject *pRange = m_pActiveSheet->querySubObject("Cells(int,int)", row, column);
64     pRange->dynamicCall("Value", value);
65 }
66 Range* ExcelHelper::GetRange(int row, int column)
67 {
68     QAxObject *pRange = m_pActiveSheet->querySubObject("Cells(int,int)", row, column);
69     return new Range(pRange);
70 }
71 Range* ExcelHelper::GetRange(QString str)
72 {
73     QAxObject *pRange = m_pActiveSheet->querySubObject("Range(string)",str);
74     return new Range(pRange,this);
75 }
76 //保存Excel
77 void ExcelHelper::Save(const QString &fileName)
78 {
79     m_pWorkBook->dynamicCall("SaveAs(string)", fileName);
80 }
81 
82 //关闭Excel
83 void ExcelHelper::Close()
84 {
85     if (m_pApplication != NULL) {
86         m_pApplication->dynamicCall("Quit()");
87         delete m_pApplication;
88         m_pApplication = NULL;
89     }
90 }
View Code

使用：

 1     ExcelHelper excel;
 2     excel.New(true);
 3     excel.AddSheet(T("sheet2"));
 4     excel.AddSheet(T("sheet3"));
 5     excel.AddSheet(T("sheet4"));
 6     excel.ActiveSheet(T("sheet3"));
 7     excel.SetCellValue(1, 1, "1");
 8     excel.SetCellValue(1, 2, 2);
 9     excel.GetRange(T("A1:B3"))->Value(T("华文行楷"))->BackgroundColor(QColor(255, 0, 0))->BorderColor(QColor(0, 255, 0))->Font(T("华文行楷"), true, true, 20, QColor(255, 0, 255));
10     excel.Save(T("D:\aaaaa.xlsx"));
11     excel.Close();
【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/gushandujian/p/12521448.html