BasicExcel的使用
一个用STL C++写的读写Excel文件的类,是CSpreadSheet作者封装的,与CSpreadSheet的区别:不依赖ODBC,而CSpreadSheet依赖ODBC,需要MFC库的支持,不能跨平台。
BasicExcel的限制:
1)不支持格式化;
2)不支持公式;
3)不支持图表;
4)不支持Unicode UTF-32;
5)中文支持不好;
class BasicExcel
void New(int sheets=3)
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创建一个新工作薄,默认3张工作表
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bool Load(const char* filename)
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载入一个已存在的工作薄文件 |
bool Save()
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保存当前工作薄到已载入文件
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bool SaveAs(const char* filename)
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保存当前工作薄到一个新文件
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size_t GetTotalWorkSheets()
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获取当前工作薄的工作表数目
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BasicExcelWorksheet* GetWorksheet(size_t sheetIndex)
BasicExcelWorksheet* GetWorksheet(const char* name)
BasicExcelWorksheet* GetWorksheet(const wchar_t* name)
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获取指定索引的工作表对象,索引从0开始,索引无效则返回值为NULL
获取指定名称的工作表对象,名称无效则返回值为NULL
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BasicExcelWorksheet* AddWorksheet(int sheetIndex=-1)
BasicExcelWorksheet* AddWorksheet(const char* name, int sheetIndex=-1)
BasicExcelWorksheet* AddWorksheet(const wchar_t* name, int sheetIndex=-1)
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添加指定索引的工作表,名称默认为SheetX,X从1开始,如果sheetIndex==-1,则默认添加到最后一个位置
添加指定名称和索引的工作表,如果sheetIndex==-1,则默认添加到最后一个位置
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bool DeleteWorksheet(size_t sheetIndex)
bool DeleteWorksheet(const char* name)
bool DeleteWorksheet(const wchar_t* name)
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删除指定索引或名称的工作表 |
char* GetAnsiSheetName(size_t sheetIndex)
wchar_t* GetUnicodeSheetName(size_t sheetIndex)
bool GetSheetName(size_t sheetIndex, char* name)
bool GetSheetName(size_t sheetIndex, wchar_t* name)
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获取指定索引的工作表名称
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bool RenameWorksheet(size_t sheetIndex, const char* to)
bool RenameWorksheet(size_t sheetIndex, const wchar_t* to)
bool RenameWorksheet(const char* from, const char* to)
bool RenameWorksheet(const wchar_t* from, const wchar_t* to)
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重命名指定索引或名称的工作表
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class BasicExcelWorksheet
char* GetAnsiSheetName()
wchar_t* GetUnicodeSheetName()
bool GetSheetName(char* name)
bool GetSheetName(wchar_t* name)
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获取当前工作表的名称
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bool Rename(const char* to)
bool Rename(const wchar_t* to)
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重命名当前工作表
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void Print(ostream& os, char delimiter=',', char textQualifier='\0')
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输出整张工作表到指定输出流,指定列分隔字符和文本限定符
指定列分隔符为','和文本限定符为'\"',该函数可以用来保存当前工作表为CSV格式
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size_t GetTotalRows()
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获取当前工作表的总行数
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size_t GetTotalCols()
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获取当前工作表的总列数
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BasicExcelCell* Cell(size_t row, size_t col)
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获取指定行、列的单元格对象,行、列值从0开始,如果行值超过65535或者列值超过255则返回NULL
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bool EraseCell(size_t row, size_t col)
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清空指定行、列的单元格对象的内容
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class BasicExcelCell
int Type() const
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获取单元格值类型,包括以下值:
UNDEFINED ,INT ,DOUBLE ,STRING ,WSTRING |
bool Get(int& val) const
bool Get(double& val) const
bool Get(char* str) const
bool Get(wchar_t* str) const
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从当前单元格获取指定类型的内容
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size_t GetStringLength()
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获取当前单元格字符串长度
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int GetInteger() const
double GetDouble() const
const char* GetString() const
const wchar_t* GetWString() const
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从当前单元格获取指定类型的内容
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ostream& operator<<(ostream& os, const BasicExcelCell& cell)
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输出当前单元格内容到输出流中
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void Set(int val)
void Set(double val)
void Set(const char* str)
void Set(const wchar_t* str)
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输出指定格式的内容到当前单元格 |
void SetInteger(int val)
void SetDouble(double val)
void SetString(const char* str)
void SetWString(const wchar_t* str)
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输出指定格式的内容到当前单元格
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void EraseContents()
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清空当前单元格的内容 |
示例代码:在Qt线程中递归遍历文件夹中文件后将文件名和文件大小写入Excel表格
main.cpp
1 #include <QtCore/QCoreApplication> 2 #include "mythread.h" 3 4 int main(int argc, char *argv[]) 5 { 6 QCoreApplication a(argc, argv); 7 8 MyThread mythread; 9 mythread.setCurrentDirectory(QString("C:/Program Files/360")); 10 mythread.setStart(); 11 12 return a.exec(); 13 }
mythread.h
1 #ifndef MY_THREAD_H 2 #define MY_THREAD_H 3 4 5 #include <QThread> 6 #include <QMutex> 7 #include <QWaitCondition> 8 9 #include "BasicExcel.h" 10 11 using namespace YExcel; 12 13 class MyThread : public QThread 14 { 15 Q_OBJECT 16 17 public: 18 MyThread(); 19 ~MyThread(); 20 21 void setStart(); 22 void setCurrentDirectory(QString strCurrentDirectory); 23 void recursiveTraverseDir(QString dirString); 24 25 protected: 26 void run(); 27 28 29 private: 30 void ExportToExcel(); 31 32 private: 33 bool bRunning; 34 QWaitCondition waitRunning; 35 QMutex mutex; 36 37 QString strCurrentDirectory; 38 QString strFileName; 39 int iFileSize; 40 41 BasicExcel beObject; 42 BasicExcelWorksheet* bewCurrentSheet; 43 BasicExcelCell* becCurrentCell; 44 char strCurrentSheet[8]; 45 int iCurrentRow; 46 int iSheetIndex; 47 }; 48 49 #endif // MY_THREAD_H
mythread.cpp
1 #include <QDir> 2 #include <QFileInfo> 3 #include <Qt> 4 #include <QtGlobal> 5 #include <QtCore/qmath.h> 6 #include "mythread.h" 7 8 MyThread::MyThread() 9 { 10 bRunning = false; 11 12 beObject.New(); 13 bewCurrentSheet = beObject.GetWorksheet("Sheet1"); 14 iCurrentRow = 0; 15 iSheetIndex = 1; 16 17 start(); 18 } 19 20 MyThread::~MyThread() 21 { 22 wait(); 23 } 24 25 void MyThread::setStart() 26 { 27 QMutexLocker locker(&mutex); 28 this->bRunning = true; 29 waitRunning.wakeOne(); 30 } 31 32 void MyThread::setCurrentDirectory(QString strCurrentDirectory) 33 { 34 QMutexLocker locker(&mutex); 35 this->strCurrentDirectory = strCurrentDirectory; 36 } 37 38 void MyThread::run() 39 { 40 forever 41 { 42 { 43 QMutexLocker locker(&mutex); 44 if(!bRunning) 45 { 46 waitRunning.wait(&mutex); 47 } 48 } 49 50 recursiveTraverseDir(strCurrentDirectory); 51 beObject.SaveAs("example.xls"); 52 53 { 54 QMutexLocker locker(&mutex); 55 if(bRunning) 56 { 57 bRunning = false; 58 } 59 } 60 } 61 62 } 63 64 void MyThread::recursiveTraverseDir(QString dirString) 65 { 66 QDir dir(dirString); 67 if (!dir.exists()) 68 { 69 return; 70 } 71 72 dir.setFilter(QDir::Dirs | QDir::Files); 73 dir.setSorting(QDir::DirsFirst); 74 75 QFileInfoList fileInfolist = dir.entryInfoList(); 76 77 int i = 0; 78 bool bIsDir; 79 QFileInfo fileInfo; 80 81 do{ 82 fileInfo = fileInfolist.at(i); 83 if(fileInfo.fileName() == "." | fileInfo.fileName() == "..") 84 { 85 i++; 86 continue; 87 } 88 89 bIsDir = fileInfo.isDir(); 90 if (bIsDir) 91 { 92 recursiveTraverseDir(fileInfo.filePath()); 93 } 94 else 95 { 96 strFileName = fileInfo.fileName(); 97 iFileSize = qCeil((fileInfo.size()) / 1024); 98 99 cout << strFileName.toLatin1().data() << "\t\t" << iFileSize << endl; 100 101 ExportToExcel(); 102 } 103 104 msleep(50); 105 i++; 106 107 }while(i < fileInfolist.size()); 108 } 109 110 void MyThread::ExportToExcel() 111 { 112 if(bewCurrentSheet) 113 { 114 becCurrentCell = bewCurrentSheet->Cell(iCurrentRow, 0); 115 becCurrentCell->SetString(strFileName.toLatin1().data()); 116 117 becCurrentCell = bewCurrentSheet->Cell(iCurrentRow, 1); 118 becCurrentCell->SetInteger(iFileSize); 119 120 iCurrentRow++; 121 } 122 }
执行结果: