DataTable数据导出Excel 并且下载

public string Excel(System.Data.DataTable dt)

{

//模板的路径

string strUploadPath = HttpContext.Current.Server.MapPath("../template/");

//模板的名称

string strFileName = strUploadPath + "JobTicketTemplate.xlsx";

FileInfo TemplateFile = new FileInfo(strFileName);

//目标地址

string strPath = HttpContext.Current.Server.MapPath("../temp/");

//文件名称

string strNewFileName = System.DateTime.Now.ToString("yyyyMMddHHmmss") + ".xlsx";

FileInfo newFile = new FileInfo(strPath + strNewFileName);

int intCount = 2;

using (OfficeOpenXml.ExcelPackage package = new OfficeOpenXml.ExcelPackage(newFile, TemplateFile))

{

// Worksheets指的是第几个Excel

OfficeOpenXml.ExcelWorksheet worksheet = package.Workbook.Worksheets[1];

if (dt != null && dt.Rows.Count > 0)

{

for (int i = 0; i < dt.Rows.Count; i++)

{

worksheet.Cell(i + intCount, 1).Value = dt.Rows[i]["Name"].ToString();

worksheet.Cell(i + intCount, 2).Value = dt.Rows[i]["RealName"].ToString();

worksheet.Cell(i + intCount, 3).Value = dt.Rows[i]["Company"].ToString();

worksheet.Cell(i + intCount, 4).Value = dt.Rows[i]["IdentityCard"].ToString();

worksheet.Cell(i + intCount, 5).Value = dt.Rows[i]["Province"].ToString();

worksheet.Cell(i + intCount, 6).Value = dt.Rows[i]["Email"].ToString();

worksheet.Cell(i + intCount, 7).Value = dt.Rows[i]["Mobile"].ToString();

}

}

package.Save();

}

return strNewFileName;

}