ASP.NET Core 使用EPPlus.Core導入導出Excel xlsx 文件,EPPlus.Core支持Excel 2007/2010 xlsx文件導入導出,可以運行在Windows, Linux和Mac。
EPPlus.Core 是基於EPPlus 更改而來,在Linux 下需要安裝libgdiplus 。
EPPlus:http://epplus.codeplex.com/
EPPlus.Core:https://github.com/VahidN/EPPlus.Core
下面在ASP.NET Core 中導入導出Excel xlsx 文件。
新建一個ASP.NET Core Web Application 項目ASPNETCoreExcel,選擇Web 應用程序 不進行身份驗證。
然後添加EPPlus.Core 引用。
使用NuGet 命令行:
Install-Package EPPlus.Core
也可以使用NuGet包管理器安裝。
新建一個XlsxController ,添加Export 操作。
public class XlsxController : Controller { private IHostingEnvironment _hostingEnvironment; public XlsxController(IHostingEnvironment hostingEnvironment) { _hostingEnvironment = hostingEnvironment; } public IActionResult Index() { return View(); } public IActionResult Export() { string sWebRootFolder = _hostingEnvironment.WebRootPath; string sFileName = $"{Guid.NewGuid()}.xlsx"; FileInfo file = new FileInfo(Path.Combine(sWebRootFolder, sFileName)); using (ExcelPackage package = new ExcelPackage(file)) { // 添加worksheet ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("aspnetcore"); //添加頭 worksheet.Cells[1, 1].Value = "ID"; worksheet.Cells[1, 2].Value = "Name"; worksheet.Cells[1, 3].Value = "Url"; //添加值 worksheet.Cells["A2"].Value = 1000; 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(); } return File(sFileName, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); } }
通過依賴注入獲取HostingEnvironment,對應可以獲取程序的相關目錄及屬性。
然後添加Index 視圖增加一個鏈接導出Excel
@{ } <h2>ASP.NET Core 導入導出Excel xlsx 文件</h2> <a asp-action="Export">導出Excel</a>
點擊導出文件,打開結果如下。
在index視圖中添加一個上傳文件,添加Import操作。
Index.cshtml
@{ } <h2>ASP.NET Core 導入導出Excel xlsx 文件</h2> <a asp-action="Export">導出Excel</a> <hr /> <form enctype="multipart/form-data" method="post" asp-action="Import"> <input type="file" name="excelfile" /> <input type="submit" value="上傳" /> </form>
[HttpPost] public IActionResult Import(IFormFile excelfile) { string sWebRootFolder = _hostingEnvironment.WebRootPath; string sFileName = $"{Guid.NewGuid()}.xlsx"; FileInfo file = new FileInfo(Path.Combine(sWebRootFolder, sFileName)); try { using (FileStream fs = new FileStream(file.ToString(), FileMode.Create)) { excelfile.CopyTo(fs); fs.Flush(); } using (ExcelPackage package = new ExcelPackage(file)) { StringBuilder sb = new StringBuilder(); ExcelWorksheet worksheet = package.Workbook.Worksheets[1]; int rowCount = worksheet.Dimension.Rows; int ColCount = worksheet.Dimension.Columns; bool bHeaderRow = true; for (int row = 1; row <= rowCount; row++) { for (int col = 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); } return Content(sb.ToString()); } } catch (Exception ex) { return Content(ex.Message); } }
運行程序打開http://localhost:5000/xlsx
上傳對應文件,顯示如下。
ASP.NET Core簡單的導入導出Excel 功能也就完成了。
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