ASP. NET Core Import Export Excel xlsx file

ASP. NET Core uses Epplus.core import to export an Excel xlsx file, Epplus.core supports Excel 2007/2010 xlsx file Import and export, which can be run on Windows, Linux and Mac.

Epplus.core is based on epplus changes and requires the installation of Libgdiplus under Linux.


epplus:http://epplus.codeplex.com/

Epplus.core:https://github.com/vahidn/epplus.core

Import the export Excel xlsx file in ASP. NET Core.

New Project

Create a new ASP. NET Core Web application project Aspnetcoreexcel, and choose not to authenticate the WEB application.

Then add the Epplus.core reference.

Using the NuGet command line:

Install-package Epplus.core

You can also use the NuGet Package Manager to install.

Export xlsx file

Create a new Xlsxcontroller and add an export operation.

     Public classXlsxcontroller:controller {Privateihostingenvironment _hostingenvironment;  PublicXlsxcontroller (ihostingenvironment hostingenvironment) {_hostingenvironment=hostingenvironment; }         PublicIactionresult Index () {returnView (); }         PublicIactionresult Export () {stringSwebrootfolder =_hostingenvironment.webrootpath; stringsFileName = $"{guid.newguid ()}.xlsx"; FileInfo file=NewFileInfo (Path.Combine (Swebrootfolder, sfilename)); using(Excelpackage package =Newexcelpackage (file)) {                //Add Worksheetexcelworksheet worksheet = Package. WORKBOOK.WORKSHEETS.ADD ("Aspnetcore"); //Add HeaderWorksheet. cells[1,1]. Value ="ID"; Worksheet. cells[1,2]. Value ="Name"; Worksheet. cells[1,3]. Value ="URL"; //Add ValueWorksheet. cells["A2"]. Value = +; Worksheet. cells["B2"]. Value ="Linezero"; Worksheet. cells["C2"]. Value ="http://www.cnblogs.com/linezero/"; Worksheet. cells["A3"]. Value =1001; Worksheet. cells["B3"]. Value ="Linezero GitHub"; Worksheet. cells["C3"]. Value ="Https://github.com/linezero"; Worksheet. cells["C3"]. Style.Font.Bold =true;Package .             Save (); }            returnFile (sFileName,"Application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); }    }

By relying on injection to get hostingenvironment, corresponding can get the relevant directory and properties of the program.

Then add the index view to increase a link to export Excel

@{}"export" > Export excel</a>

Click Export File to open the results below.

Import xlsx file

Add an upload file to the index view and add an import operation.

Index.cshtml

@{ }"Export"> Export EXCEL&LT;/A&GT;&LT;HR/><form enctype="Multipart/form-data"Method="Post"asp-action="Import"> <input type="file"Name="Excelfile"/> <input type="Submit"Value="Upload"/></form>

[HttpPost] Publiciactionresult Import (iformfile excelfile) {stringSwebrootfolder =_hostingenvironment.webrootpath; stringsFileName = $"{guid.newguid ()}.xlsx"; FileInfo file=NewFileInfo (Path.Combine (Swebrootfolder, sfilename)); Try            {                using(FileStream fs =NewFileStream (file. ToString (), FileMode.Create)) {excelfile.                    CopyTo (FS); Fs.                Flush (); }                using(Excelpackage package =Newexcelpackage (file)) {StringBuilder SB=NewStringBuilder (); excelworksheet worksheet= Package. workbook.worksheets[1]; intRowCount =worksheet.                    Dimension.rows; intColCount =worksheet.                    Dimension.columns; BOOLBheaderrow =true;  for(introw =1; Row <= RowCount; row++)                    {                         for(intCol =1; Col <= ColCount; col++)                        {                            if(Bheaderrow) {sb. Append (worksheet. Cells[row, Col]. Value.tostring ()+"\ t"); }                            Else{sb. Append (worksheet. Cells[row, Col]. Value.tostring ()+"\ t"); }} sb.                    Append (Environment.NewLine); }                    returnContent (sb.)                ToString ()); }            }            Catch(Exception ex) {returnContent (ex.            Message); }        }

Run the program to open http://localhost:5000/xlsx

Upload the corresponding file, shown below.

An ASP. NET core simple import and export Excel feature is also completed.

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ASP. NET Core Import Export Excel xlsx file