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TA贡献1772条经验 获得超5个赞
我使用过 epplus,我认为它适用于这种情况。让我给你举个例子。导出数据
private ExcelPackage CreateDoc(string title, string subject, string keyword)
{
var p = new ExcelPackage();
p.Workbook.Properties.Title = title;
p.Workbook.Properties.Author = "Application Name";
p.Workbook.Properties.Subject = subject;
p.Workbook.Properties.Keywords = keyword;
return p;
}
public ExcelPackage getApplicantsStatistics()
{
ExcelPackage p = CreateDoc("Applicant Statistics", "Applicant statistics", "All Applicants");
var worksheet = p.Workbook.Worksheets.Add("Applicant Statistics");
//Add Report Header
worksheet.Cells[1, 1].Value = "Applicant Statistics";
worksheet.Cells[1, 1, 1, 3].Merge = true;
//Get the data you want to send to the excel file
var appProg = _unitOfWork.ApplicantsProgram
.AllIncluding(pr => pr.Program1)
.GroupBy(ap => ap.Program1.Name)
.Select(ap => new { programName = ap.Key, TotalNum = ap.Count() })
.ToList();
//First add the headers
worksheet.Cells[2, 1].Value = "SR No";
worksheet.Cells[2, 2].Value = "Program";
worksheet.Cells[2, 3].Value = "No. of Applicants";
//Add values
var numberformat = "#,##0";
var dataCellStyleName = "TableNumber";
var numStyle = p.Workbook.Styles.CreateNamedStyle(dataCellStyleName);
numStyle.Style.Numberformat.Format = numberformat;
for (int i = 0; i < appProg.Count; i++)
{
worksheet.Cells[i + 3, 1].Value = i + 1;
worksheet.Cells[i + 3, 2].Value = appProg[i].programName;
worksheet.Cells[i + 3, 3].Value = appProg[i].TotalNum;
}
// Add to table / Add summary row
var rowEnd = appProg.Count + 2;
var tbl = worksheet.Tables.Add(new ExcelAddressBase(fromRow: 2, fromCol: 1, toRow: rowEnd, toColumn: 3), "Applicants");
tbl.ShowHeader = true;
tbl.TableStyle = TableStyles.Dark9;
tbl.ShowTotal = true;
tbl.Columns[2].DataCellStyleName = dataCellStyleName;
tbl.Columns[2].TotalsRowFunction = RowFunctions.Sum;
worksheet.Cells[rowEnd, 3].Style.Numberformat.Format = numberformat;
// AutoFitColumns
worksheet.Cells[2, 1, rowEnd, 3].AutoFitColumns();
return p;
}
返回的 ExcelPackage 对象可以作为下载发送到带有 MVC 的文件
byte[] reportBytes;
using (var package = _excelRep.getApplicantsStatistics())
{
reportBytes = package.GetAsByteArray();
}
return File(reportBytes, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", fileName);
TA贡献1824条经验 获得超6个赞
有几个很好的库可以这样做,我最喜欢的是微软的 EPPlus 和 OpenXML
https://github.com/JanKallman/EPPlus
https://docs.microsoft.com/en-us/office/open-xml/open-xml-sdk
您的数据库和前端没有太大区别,因为一切都由后端组织。
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