Spring MVC 教程,快速入门,深入分析――springMVC-mvc.xml 配置文件片段讲解

C#操作Excel!


publicclassImportExportToExcel






{


privatestringstrConn;




privateSystem.Windows.Forms.OpenFileDialogopenFileDlg=newSystem.Windows.Forms.OpenFileDialog();


privateSystem.Windows.Forms.SaveFileDialogsaveFileDlg=newSystem.Windows.Forms.SaveFileDialog();




publicImportExportToExcel()






{


//


//TODO:在此处添加构造函数逻辑


//


this.openFileDlg.DefaultExt="xls";


this.openFileDlg.Filter="Excel文件(*.xls)|*.xls";




this.saveFileDlg.DefaultExt="xls";


this.saveFileDlg.Filter="Excel文件(*.xls)|*.xls";




}






从Excel文件导入到DataSet#region从Excel文件导入到DataSet


/////<summary>


/////从Excel导入文件


/////</summary>


/////<paramname="strExcelFileName">Excel文件名</param>


/////<returns>返回DataSet</returns>


//publicDataSetImportFromExcel(stringstrExcelFileName)


//{


//returndoImport(strExcelFileName);


//}




/**////<summary>


///从选择的Excel文件导入


///</summary>


///<returns>DataSet</returns>


publicDataSetImportFromExcel()






{


DataSetds=newDataSet();


if(openFileDlg.ShowDialog()==System.Windows.Forms.DialogResult.OK)


ds=doImport(openFileDlg.FileName);


returnds;


}




/**////<summary>


///从指定的Excel文件导入


///</summary>


///<paramname="strFileName">Excel文件名</param>


///<returns></returns>


publicDataSetImportFromExcel(stringstrFileName)






{


DataSetds=newDataSet();


ds=doImport(strFileName);


returnds;


}




/**////<summary>


///执行导入


///</summary>


///<paramname="strFileName">文件名</param>


///<returns>DataSet</returns>


privateDataSetdoImport(stringstrFileName)






{


if(strFileName=="")returnnull;




strConn="Provider=Microsoft.Jet.OLEDB.4.0;"+


"DataSource="+strFileName+";"+


"ExtendedProperties=Excel8.0;";


OleDbDataAdapterExcelDA=newOleDbDataAdapter("SELECT*FROM[Sheet1$]",strConn);




DataSetExcelDs=newDataSet();


try






{


ExcelDA.Fill(ExcelDs,"ExcelInfo");




}


catch(Exceptionerr)






{


System.Console.WriteLine(err.ToString());


}


returnExcelDs;








}


#endregion






从DataSet到出到Excel#region从DataSet到出到Excel




/**////<summary>


///导出指定的Excel文件


///</summary>


///<paramname="ds">要导出的DataSet</param>


///<paramname="strExcelFileName">要导出的Excel文件名</param>


publicvoidExportToExcel(DataSetds,stringstrExcelFileName)






{


if(ds.Tables.Count==0||strExcelFileName=="")return;


doExport(ds,strExcelFileName);






}




/**////<summary>


///导出用户选择的Excel文件


///</summary>


///<paramname="ds">DataSet</param>


publicvoidExportToExcel(DataSetds)






{


if(saveFileDlg.ShowDialog()==System.Windows.Forms.DialogResult.OK)


doExport(ds,saveFileDlg.FileName);




}




/**////<summary>


///执行导出


///</summary>


///<paramname="ds">要导出的DataSet</param>


///<paramname="strExcelFileName">要导出的文件名</param>


privatevoiddoExport(DataSetds,stringstrExcelFileName)






{




Excel.Applicationexcel=newExcel.Application();




//Excel.Workbookobj=newExcel.WorkbookClass();


//obj.SaveAs("c:\zn.xls",Excel.XlFileFormat.xlExcel9795,null,null,false,false,Excel.XlSaveAsAccessMode.xlNoChange,null,null,null,null);




introwIndex=1;


intcolIndex=0;




excel.Application.Workbooks.Add(true);






System.Data.DataTabletable=ds.Tables[0];


foreach(DataColumncolintable.Columns)






{


colIndex++;


excel.Cells[1,colIndex]=col.ColumnName;


}




foreach(DataRowrowintable.Rows)






{


rowIndex++;


colIndex=0;


foreach(DataColumncolintable.Columns)






{


colIndex++;


excel.Cells[rowIndex,colIndex]=row[col.ColumnName].ToString();


}


}


excel.Visible=false;


excel.Sheets[0]="sss";


excel.ActiveWorkbook.SaveAs(strExcelFileName+".XLS",Excel.XlFileFormat.xlExcel9795,null,null,false,false,Excel.XlSaveAsAccessMode.xlNoChange,null,null,null,null);






//wkbNew.SaveAsstrBookName






//excel.Save(strExcelFileName);


excel.Quit();


excel=null;




GC.Collect();//垃圾回收


}


#endregion






从XML导入到Dataset#region从XML导入到Dataset






/**////<summary>


///从选择的XML文件导入


///</summary>


///<returns>DataSet</returns>


publicDataSetImportFromXML()






{


DataSetds=newDataSet();


System.Windows.Forms.OpenFileDialogopenFileDlg=newSystem.Windows.Forms.OpenFileDialog();


openFileDlg.DefaultExt="xml";


openFileDlg.Filter="xml文件(*.xml)|*.xml";


if(openFileDlg.ShowDialog()==System.Windows.Forms.DialogResult.OK)




try

{ds.ReadXml(openFileDlg.FileName,System.Data.XmlReadMode.ReadSchema);}




catch

{}


returnds;


}




/**////<summary>


///从指定的XML文件导入


///</summary>


///<paramname="strFileName">XML文件名</param>


///<returns></returns>


publicDataSetImportFromXML(stringstrFileName)






{


if(strFileName=="")


returnnull;


DataSetds=newDataSet();




try

{ds.ReadXml(strFileName,System.Data.XmlReadMode.ReadSchema);}




catch

{}


returnds;


}




#endregion






从DataSet导出到XML#region从DataSet导出到XML




/**////<summary>


///导出指定的XML文件


///</summary>


///<paramname="ds">要导出的DataSet</param>


///<paramname="strXMLFileName">要导出的XML文件名</param>


publicvoidExportToXML(DataSetds,stringstrXMLFileName)






{


if(ds.Tables.Count==0||strXMLFileNamecolor: #0000