.Net Core使用OpenXML導出，導入Excel

導出Excel是程序很常用到的功能，.Net Core可以借助Open-XML-SDK來導出Excel。

Open-XML-SDK

open-xml-sdk是是微軟開源的項目。Open XML SDK是用於Open XML文檔(DOCX, XLSX, and PPTX)的開源類庫。它可以：

• 生成Word，Excel，PPT時有非常好的性能
• 從XML數據源中填充內容到Word文檔中
• 可將單個Word，Excel，PPT分成多個文件或者將多個合並到一個文件中
• DOCX => HTML/CSS 和 HTML/CSS => DOCX 提供友好便捷的方式
• 提取Excel中的數據
• 用正則表達式查找或者替換DOCX / PPTX中的內容
• 更新 DOCX / PPTX 中緩存的數據或者嵌入的表格.
• 文檔內容的修改, 例如從文件中刪除跟蹤的修訂或刪除不可接受的內容.

依賴 WindowsBase 或 System.IO.Packaging

Platform	System.IO.Packing Source	Tested by
.NET 3.5	WindowsBase	N/A
.NET 4.0	WindowsBase	.NET 4.5.2
.NET 4.6	NuGet	.NET 4.6
.NET Standard	NuGet	.NET Core 1.0

開源地址：https://github.com/OfficeDev/Open-XML-SDK

Nuget：https://www.nuget.org/packages/DocumentFormat.OpenXml

Open XML SDK for Office 文檔

http://msdn.microsoft.com/en-us/library/office/bb448854.aspx

示例

首先添加Nuget包引用

直接上代碼：

static void Main(string[] args)
{
    var spreadsheetDocument = SpreadsheetDocument.Create("F:\\OpenXml.xlsx", SpreadsheetDocumentType.Workbook);
    var workbookpart = spreadsheetDocument.AddWorkbookPart();
    workbookpart.Workbook = new Workbook();
    WorksheetPart worksheetPart = workbookpart.AddNewPart();
    worksheetPart.Worksheet = new Worksheet(new SheetData());
    Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild(new Sheets());
    Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "Sheet1" };
    sheets.Append(sheet);
    var sheetData = worksheetPart.Worksheet.GetFirstChild();
    for (int i = 0; i < 10; i++)
    {
        Row row = new Row();
        for (int j = 0; j < 10; j++)
        {
            Cell dataCell = new Cell();
            dataCell.CellValue = new CellValue($"{i + 1}行{j + 1}列");
            dataCell.DataType = new EnumValue(CellValues.String);
            row.AppendChild(dataCell);
        }
        sheetData.Append(row);
    }


    workbookpart.Workbook.Save();
    spreadsheetDocument.Close();
}

導出的Excel如圖：

讀取Excel

讀取Excel的代碼會相對簡單一些：

static void Main(string[] args)
{
    using (SpreadsheetDocument doc = SpreadsheetDocument.Open(@"F:\OpenXml.xlsx", false))
    {
        WorkbookPart wbPart = doc.WorkbookPart;
        Sheet mysheet = (Sheet)doc.WorkbookPart.Workbook.Sheets.ChildElements.FirstOrDefault();
        Worksheet worksheet = ((WorksheetPart)wbPart.GetPartById(mysheet.Id)).Worksheet;
        SheetData sheetData = (SheetData)worksheet.ChildElements.FirstOrDefault();

        foreach (var row in sheetData.ChildElements)
        {
            foreach (var cell in (row as Row).ChildElements)
            {
                var cellValue = (cell as Cell).CellValue;
                if (cellValue != null)
                {
                    Console.WriteLine(cellValue.Text);
                }
            }
        }
    }
}

 

原文地址：http://www.zkea.net/codesnippet/detail/post-69