转:[Asp.net]常见数据导入Excel,Excel数据导入数据库解决方案,总有一款适合你!...
引言
項目中常用到將數據導入Excel,將Excel中的數據導入數據庫的功能,曾經也查找過相關的內容,將曾經用過的方案總結一下。
方案一
NPOI
NPOI 是 POI 項目的 .NET 版本。POI是一個開源的Java讀寫Excel、WORD等微軟OLE2組件文檔的項目。
使用 NPOI 你就可以在沒有安裝 Office 或者相應環境的機器上對 WORD/EXCEL 文檔進行讀寫。NPOI是構建在POI 3.x版本之上的,它可以在沒有安裝Office的情況下對Word/Excel文檔進行讀寫操作。
優勢
(一)傳統操作Excel遇到的問題:
1、如果是.NET,需要在服務器端裝Office,且及時更新它,以防漏洞,還需要設定權限允許.NET訪問COM+,如果在導出過程中出問題可能導致服務器宕機。
2、Excel會把只包含數字的列進行類型轉換,本來是文本型的,Excel會將其轉成數值型的,比如編號000123會變成123。
3、導出時,如果字段內容以“-”或“=”開頭,Excel會把它當成公式進行,會報錯。
4、Excel會根據Excel文件前8行分析數據類型,如果正好你前8行某一列只是數字,那它會認為該列為數值型,自動將該列轉變成類似1.42702E+17格式,日期列變成包含日期和數字的。(二)使用NPOI的優勢
1、您可以完全免費使用該框架
2、包含了大部分EXCEL的特性(單元格樣式、數據格式、公式等等)
3、專業的技術支持服務(24*7全天候) (非免費)
4、支持處理的文件格式包括xls, xlsx, docx.
5、采用面向接口的設計架構( 可以查看 NPOI.SS 的命名空間)
6、同時支持文件的導入和導出
7、基于.net 2.0 也支持xlsx 和 docx格式(當然也支持.net 4.0)
8、來自全世界大量成功且真實的測試Cases
9、大量的實例代碼
11、你不需要在服務器上安裝微軟的Office,可以避免版權問題。
12、使用起來比Office PIA的API更加方便,更人性化。
13、你不用去花大力氣維護NPOI,NPOI Team會不斷更新、改善NPOI,絕對省成本。
NPOI之所以強大,并不是因為它支持導出Excel,而是因為它支持導入Excel,并能“理解”OLE2文檔結構,這也是其他一些Excel讀寫庫比較弱的方面。通常,讀入并理解結構遠比導出來得復雜,因為導入你必須假設一切情況都是可能的,而生成你只要保證滿足你自己需求就可以了,如果把導入需求和生成需求比做兩個集合,那么生成需求通常都是導入需求的子集,這一規律不僅體現在Excel讀寫庫中,也體現在pdf讀寫庫中,目前市面上大部分的pdf庫僅支持生成,不支持導入。
構成
?NPOI 1.2.x主要由POIFS、DDF、HPSF、HSSF、SS、Util六部分組成。
| NPOI.POIFS | OLE2/ActiveX文檔屬性讀寫庫 |
| NPOI.DDF | Microsoft Office Drawing讀寫庫 |
| NPOI.HPSF | OLE2/ActiveX文檔讀寫庫 |
| NPOI.HSSF | Microsoft Excel BIFF(Excel 97-2003)格式讀寫庫 |
| NPOI.SS | Excel公用接口及Excel公式計算引擎 |
| NPOI.Util | 基礎類庫,提供了很多實用功能,可用于其他讀寫文件格式項目的開發 |
| Assembly名稱 | 模塊/命名空間 | 說明 |
| NPOI.DLL | NPOI.POIFS | OLE2/ActiveX文檔屬性讀寫庫 |
| NPOI.DLL | NPOI.DDF | 微軟Office Drawing讀寫庫 |
| NPOI.DLL | NPOI.HPSF | OLE2/ActiveX文檔讀寫庫 |
| NPOI.DLL | NPOI.HSSF | 微軟Excel BIFF(Excel 97-2003, doc)格式讀寫庫 |
| NPOI.DLL | NPOI.SS | Excel公用接口及Excel公式計算引擎 |
| NPOI.DLL | NPOI.Util | 基礎類庫,提供了很多實用功能,可用于其他讀寫文件格式項目的開發 |
| NPOI.OOXML.DLL | NPOI.XSSF | Excel 2007(xlsx)格式讀寫庫 |
| NPOI.OOXML.DLL | NPOI.XWPF | Word 2007(docx)格式讀寫庫 |
| NPOI.OpenXml4Net.DLL | NPOI.OpenXml4Net | OpenXml底層zip包讀寫庫 |
| NPOI.OpenXmlFormats.DLL | NPOI.OpenXmlFormats | 微軟Office OpenXml對象關系庫 |
(以上內容來自百度百科)從上表可知NPOI組件已支持excel2007,記得之前用的時候只支持excel2003。很久沒研究過這玩意兒了。
案例
?官網地址:http://npoi.codeplex.com/,可以從官網下載NPOI2.X版本的。
?首先引入
ICSharpCode.SharpZipLib.dll
NPOI.dll
NPOI.OOXML.dll
NPOI.OpenXml4Net.dll
NPOI.OpenXmlFormats.dll
然后引入命名空間:
using NPOI.XSSF.UserModel; using NPOI.SS.UserModel; using NPOI.HSSF.UserModel;????? 輔助類
NPOIExcelHelper參考:http://www.cnblogs.com/Joetao/articles/3247909.html
測試結果
導入Excel,student.xlsx
導入DataTable,這里只將數據導入DataTable,導入數據庫部分,就不再寫了。
測試數據,向qq群里一朋友要的。大概有5w多條,lz機子是老爺機跑不起,只導出了其中的1k條。
方案二
利用office的com組件
首先添加com引用
引入命名空間
using Excel = Microsoft.Office.Interop.Excel;?Com操作Excel輔助類
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Excel = Microsoft.Office.Interop.Excel; using System.Web.UI; using System.Web; using System.Data; namespace Wolfy.Common {/// <summary>/// 使用com組件 操作Excel/// </summary>public class ComExcelHelper{private Excel.Application appExcel = null;private Excel.Workbook workbook = null;private Excel.Worksheet sheet = null;private DateTime dtBefore;private DateTime dtAfter;private string filePath;public string FilePath{get { return filePath; }set { filePath = value; }}private string timestamp;/// <summary>/// 以時間字符串作為保存文件的名稱/// </summary>public string Timestamp{get { return timestamp; }set { timestamp = value; }}private object mValue = System.Reflection.Missing.Value;/// <summary>///是否打開Excel界面 /// </summary>public bool Visible{set{appExcel.Visible = value;}}public ComExcelHelper(){this.dtBefore = DateTime.Now;appExcel = new Excel.Application();this.dtAfter = DateTime.Now;this.timestamp = DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString();}public ComExcelHelper(string strFilePath){this.dtBefore = DateTime.Now;appExcel = new Excel.Application();this.dtAfter = DateTime.Now;this.workbook = (Excel.Workbook)appExcel.Workbooks.Open(strFilePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);this.timestamp = DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString();}public void Dispose(){try{System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);sheet = null;workbook.Close(false, mValue, mValue);System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);workbook = null;appExcel.Quit();System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel);appExcel = null;GC.Collect();GC.WaitForPendingFinalizers();}catch (Exception ex){throw ex;}finally{foreach (System.Diagnostics.Process pro in System.Diagnostics.Process.GetProcessesByName("Excel")){if (pro.StartTime > this.dtBefore && pro.StartTime < this.dtAfter){pro.Kill();}}}System.GC.SuppressFinalize(this);}/// <summary>/// 加載Excel/// </summary>public void Load(){if (workbook == null && this.filePath != null){workbook = appExcel.Workbooks.Open(this.filePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);}}/// <summary>/// 加載Excel/// </summary>public void Load(string strFilePath){if (workbook == null){workbook = appExcel.Workbooks.Open(strFilePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);}}/// <summary>/// 新建工作表/// </summary>/// <param name="sheetName"></param>public void NewWorkSheet(string sheetName){sheet = workbook.Sheets.Add(workbook.Sheets[1], mValue, mValue, mValue);sheet.Name = sheetName;}/// <summary>/// 在指定的單元格插入指定的值/// </summary>/// <param name="strCell">單元格 如"A4"</param>/// <param name="objValue">文本 數字等值</param>public void WriteCell(string strCell, object objValue){sheet.get_Range(strCell, mValue).Value2 = objValue;}/// <summary>/// 在指定Range中插入指定的值/// </summary>/// <param name="strStartCell">Range的開始單元格</param>/// <param name="strEndCell">Range的結束單元格</param>/// <param name="objValue">文本、數字等值</param>public void WriteRange(string strStartCell, string strEndCell, object objValue){sheet.get_Range(strStartCell, strEndCell).Value2 = objValue;}/**//// <summary>/// 合并單元格,并在合并后的單元格中插入指定的值/// </summary>/// <param name="strStartCell"></param>/// <param name="strEndCell"></param>/// <param name="objValue"></param>public void WriteAfterMerge(string strStartCell, string strEndCell, object objValue){sheet.get_Range(strStartCell, strEndCell).Merge(mValue);sheet.get_Range(strStartCell, mValue).Value2 = objValue;}/**//// <summary>/// 在連續單元格中插入一個DataTable中的值/// </summary>/// <param name="strStartCell">開始的單元格</param>/// <param name="dtData">存儲數據的DataTable</param>public void WriteTable(string strStartCell, System.Data.DataTable dtData){object[,] arrData = new object[dtData.Rows.Count, dtData.Columns.Count];for (int i = 0; i < dtData.Rows.Count; i++)for (int j = 0; j < dtData.Columns.Count; j++)arrData[i, j] = dtData.Rows[i][j];sheet.get_Range(strStartCell, this.GetEndCell(strStartCell, dtData.Rows.Count - 1, dtData.Columns.Count - 1)).Value2 = arrData;arrData = null;}/**//// <summary>/// 在連續單元格中插入一個DataTable并作超級鏈接/// </summary>/// <param name="strStartCell">起始單元格標識符</param>/// <param name="dtData">存儲數據的DataTable</param>/// <param name="strLinkField">鏈接的地址字段</param>/// <param name="strTextField">鏈接的文本字段</param>public void WriteTableAndLink(string strStartCell, System.Data.DataTable dtData, string strLinkField, string strTextField){object[,] arrData = new object[dtData.Rows.Count, dtData.Columns.Count - 1];for (int i = 0; i < dtData.Rows.Count; i++){for (int j = 0; j < dtData.Columns.Count; j++){if (j > dtData.Columns.IndexOf(strLinkField))arrData[i, j - 1] = dtData.Rows[i][j];else if (j < dtData.Columns.IndexOf(strLinkField))arrData[i, j] = dtData.Rows[i][j];}}sheet.get_Range(strStartCell, this.GetEndCell(strStartCell, dtData.Rows.Count - 1, dtData.Columns.Count - 2)).Value2 = arrData;for (int i = 0; i < dtData.Rows.Count; i++)this.AddHyperLink(this.NtoL(this.LtoN(this.GetCellLetter(strStartCell)) + dtData.Columns.IndexOf(strTextField)) + System.Convert.ToString(this.GetCellNumber(strStartCell) + i), dtData.Rows[i][strLinkField].ToString() + ".htm", "點擊查看詳細", dtData.Rows[i][strTextField].ToString());arrData = null;}/**//// <summary>/// 為單元格設置公式/// </summary>/// <param name="strCell">單元格標識符</param>/// <param name="strFormula">公式</param>public void SetFormula(string strCell, string strFormula){sheet.get_Range(strCell, mValue).Formula = strFormula;}/**//// <summary>/// 設置單元格或連續區域的字體為黑體/// </summary>/// <param name="strCell">單元格標識符</param>public void SetBold(string strCell){sheet.get_Range(strCell, mValue).Font.Bold = true;}/**//// <summary>/// 設置連續區域的字體為黑體/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>public void SetBold(string strStartCell, string strEndCell){sheet.get_Range(strStartCell, strEndCell).Font.Bold = true;}/**//// <summary>/// 設置單元格或連續區域的字體顏色/// </summary>/// <param name="strCell">單元格標識符</param>/// <param name="clrColor">顏色</param>public void SetColor(string strCell, System.Drawing.Color clrColor){sheet.get_Range(strCell, mValue).Font.Color = System.Drawing.ColorTranslator.ToOle(clrColor);}/**//// <summary>/// 設置連續區域的字體顏色/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>/// <param name="clrColor">顏色</param>public void SetColor(string strStartCell, string strEndCell, System.Drawing.Color clrColor){sheet.get_Range(strStartCell, strEndCell).Font.Color = System.Drawing.ColorTranslator.ToOle(clrColor);}/**//// <summary>/// 設置單元格或連續區域的邊框:上下左右都為黑色連續邊框/// </summary>/// <param name="strCell">單元格標識符</param>public void SetBorderAll(string strCell){sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeTop].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeTop].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeBottom].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeBottom].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeLeft].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeLeft].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeRight].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeRight].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideHorizontal].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideVertical].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous;}/**//// <summary>/// 設置連續區域的邊框:上下左右都為黑色連續邊框/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>public void SetBorderAll(string strStartCell, string strEndCell){sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeTop].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeTop].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeBottom].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeBottom].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeLeft].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeLeft].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeRight].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeRight].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideHorizontal].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideVertical].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous;}/**//// <summary>/// 設置單元格或連續區域水平居左/// </summary>/// <param name="strCell">單元格標識符</param>public void SetHAlignLeft(string strCell){sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;}/**//// <summary>/// 設置連續區域水平居左/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>public void SetHAlignLeft(string strStartCell, string strEndCell){sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;}/**//// <summary>/// 設置單元格或連續區域水平居左/// </summary>/// <param name="strCell">單元格標識符</param>public void SetHAlignCenter(string strCell){sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;}/**//// <summary>/// 設置連續區域水平居中/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>public void SetHAlignCenter(string strStartCell, string strEndCell){sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;}/**//// <summary>/// 設置單元格或連續區域水平居右/// </summary>/// <param name="strCell">單元格標識符</param>public void SetHAlignRight(string strCell){sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;}/**//// <summary>/// 設置連續區域水平居右/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>public void SetHAlignRight(string strStartCell, string strEndCell){sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;}/**//// <summary>/// 設置單元格或連續區域的顯示格式/// </summary>/// <param name="strCell">單元格標識符</param>/// <param name="strNF">如"#,##0.00"的顯示格式</param>public void SetNumberFormat(string strCell, string strNF){sheet.get_Range(strCell, mValue).NumberFormat = strNF;}/**//// <summary>/// 設置連續區域的顯示格式/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>/// <param name="strNF">如"#,##0.00"的顯示格式</param>public void SetNumberFormat(string strStartCell, string strEndCell, string strNF){sheet.get_Range(strStartCell, strEndCell).NumberFormat = strNF;}/**//// <summary>/// 設置單元格或連續區域的字體大小/// </summary>/// <param name="strCell">單元格或連續區域標識符</param>/// <param name="intFontSize"></param>public void SetFontSize(string strCell, int intFontSize){sheet.get_Range(strCell, mValue).Font.Size = intFontSize.ToString();}/**//// <summary>/// 設置連續區域的字體大小/// </summary>/// <param name="strStartCell">開始單元格標識符</param>/// <param name="strEndCell">結束單元格標識符</param>/// <param name="intFontSize">字體大小</param>public void SetFontSize(string strStartCell, string strEndCell, int intFontSize){sheet.get_Range(strStartCell, strEndCell).Font.Size = intFontSize.ToString();}/**//// <summary>/// 設置列寬/// </summary>/// <param name="strColID">列標識,如A代表第一列</param>/// <param name="decWidth">寬度</param>public void SetColumnWidth(string strColID, double dblWidth){((Excel.Range)sheet.Columns.GetType().InvokeMember("Item", System.Reflection.BindingFlags.GetProperty, null, sheet.Columns, new object[] { (strColID + ":" + strColID).ToString() })).ColumnWidth = dblWidth;}/**//// <summary>/// 為單元格添加超級鏈接/// </summary>/// <param name="strCell">單元格標識符</param>/// <param name="strAddress">鏈接地址</param>/// <param name="strTip">屏幕提示</param>/// <param name="strText">鏈接文本</param>public void AddHyperLink(string strCell, string strAddress, string strTip, string strText){sheet.Hyperlinks.Add(sheet.get_Range(strCell, mValue), strAddress, mValue, strTip, strText);}/**//// <summary>/// 已知開始的單元格標識,求intR行、intColumn列后的單元格標識/// </summary>/// <param name="strStartCell">開始單元格標識</param>/// <param name="intR">行數</param>/// <param name="intC">列數</param>/// <returns>單元格標識符結果</returns>public string GetEndCell(string strStartCell, int intR, int intC){string endcell = string.Empty;System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");if (regex.IsMatch(strStartCell)){endcell = this.NtoL(this.LtoN(regex.Match(strStartCell).Result("${vLetter}")) + intC) + System.Convert.ToString((System.Convert.ToInt32(regex.Match(strStartCell).Result("${vNumber}")) + intR));}return endcell;}/**//// <summary>/// 獲取單元格標識符中的字母/// </summary>/// <param name="strCell">單元格標識符</param>/// <returns>單元格標識符對應的字母</returns>public string GetCellLetter(string strCell){System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");return regex.Match(strCell).Result("${vLetter}");}/**//// <summary>/// 獲取單元格標識符中的數字/// </summary>/// <param name="strCell">單元格標識符</param>public int GetCellNumber(string strCell){System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");return System.Convert.ToInt32(regex.Match(strCell).Result("${vNumber}"));}/**//// <summary>/// 另存為xls文件/// </summary>/// <param name="strFilePath">文件路徑</param>public void SaveAs(string strFilePath){workbook.SaveCopyAs(strFilePath);}/**//// <summary>/// 另存為xls文件/// </summary>/// <param name="strFilePath">文件路徑</param>public void Save(){workbook.Save();}/// <summary>/// 將Excel中的數據 讀入DataTable中/// </summary>/// <param name="filePath">excel文件的路徑</param>/// <param name="dtName">datatable的名字</param>/// <param name="headName">表頭,以逗號分隔</param>/// <returns></returns>public DataTable ReadExcel2DataTable(string filePath, string dtName, string headName){workbook = this.appExcel.Workbooks.Open(filePath, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);sheet = workbook.Worksheets.get_Item(1);DataTable dt = new DataTable(dtName);string[] heads = !string.IsNullOrEmpty(headName) ? headName.Split(',') : null;if (heads != null){for (int i = 0; i < heads.Length; i++){DataColumn column = new DataColumn(heads[i]);//這里沒對類型 進行處理dt.Columns.Add(column);}for (int i = 0; i <= sheet.UsedRange.Rows.Count; i++){DataRow dr = dt.NewRow();for (int j = 0; j < heads.Length; j++){string cellString = NtoL(j + 1);dr[heads[j]] = sheet.get_Range(cellString + (i + 1)).Value2;}dt.Rows.Add(dr);}}else{for (int i = 0; i <= sheet.UsedRange.Rows.Count; i++){DataRow dr = dt.NewRow();for (int j = 0; j <= sheet.UsedRange.Columns.Count; j++){dr[j + 1] = sheet.get_Range(NtoL(j + 1) + (i + 1)).Value2;}dt.Rows.Add(dr);}}return dt;}/**//// <summary>/// 另存為html文件/// </summary>/// <param name="strFilePath">文件路徑</param>public void SaveHtml(string strFilePath){workbook.SaveAs(strFilePath, Excel.XlFileFormat.xlHtml, mValue, mValue, mValue, mValue, Excel.XlSaveAsAccessMode.xlNoChange, mValue, mValue, mValue, mValue, mValue);}public void CreateHtmlFile(){}/**//// <summary>/// 字母轉換為數字,Excel列頭,如A-1;AA-27/// </summary>/// <param name="strLetter">字母</param>/// <returns>字母對應的數字</returns>private int LtoN(string strLetter){int intRtn = 0;string strLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";if (strLetter.Length == 2)intRtn += (strLetters.IndexOf(strLetter.Substring(0, 1)) + 1) * 26;intRtn += strLetters.IndexOf(strLetter.Substring(strLetter.Length - 1, 1)) + 1;return intRtn;}/**//// <summary>/// 數字轉換為字母,Excel列頭,如1-A;27-AA/// </summary>/// <param name="intNumber">數字</param>/// <returns>數字對應的字母</returns>private string NtoL(int intNumber){if (intNumber > 702)return String.Empty;if (intNumber == 702)return "ZZ";string strRtn = String.Empty;string strLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";if (intNumber > 26)strRtn = strLetters.Substring(intNumber / 26 - 1, 1);strRtn += strLetters.Substring((intNumber % 26) - 1, 1);return strRtn;}} }參考:http://www.cnblogs.com/waxdoll/archive/2005/10/28/264071.html
DataTable導入Excel
Excel讀入DataTable
這里未對類型進行處理,datetime類型的數據會轉換成數值類型的
方案三
將Excel數據表當作數據源,通過?OleDb來實現。
同樣需要引入Microsoft Excel 14.0 Object Library
?分享一個操作類:
1 using System;2 using System.Collections;3 using System.Collections.Generic;4 using System.Data;5 using System.Data.OleDb;6 using System.IO;7 using System.Linq;8 using System.Text;9 using System.Threading.Tasks;10 using System.Web;11 using System.Web.UI;12 using System.Web.UI.WebControls;13 14 namespace Wolfy.Common15 {16 class OleDbExcelHelper17 {18 #region 數據導出至Excel文件19 /// </summary> 20 /// 導出Excel文件,自動返回可下載的文件流 21 /// </summary> 22 public static void DataTable1Excel(System.Data.DataTable dtData)23 {24 GridView gvExport = null;25 HttpContext curContext = HttpContext.Current;26 StringWriter strWriter = null;27 HtmlTextWriter htmlWriter = null;28 if (dtData != null)29 {30 curContext.Response.ContentType = "application/vnd.ms-excel";31 curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");32 curContext.Response.Charset = "utf-8";33 strWriter = new StringWriter();34 htmlWriter = new HtmlTextWriter(strWriter);35 gvExport = new GridView();36 gvExport.DataSource = dtData.DefaultView;37 gvExport.AllowPaging = false;38 gvExport.DataBind();39 gvExport.RenderControl(htmlWriter);40 curContext.Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html;charset=gb2312\"/>" + strWriter.ToString());41 curContext.Response.End();42 }43 }44 45 /// <summary>46 /// 導出Excel文件,轉換為可讀模式47 /// </summary>48 public static void DataTable2Excel(System.Data.DataTable dtData)49 {50 DataGrid dgExport = null;51 HttpContext curContext = HttpContext.Current;52 StringWriter strWriter = null;53 HtmlTextWriter htmlWriter = null;54 55 if (dtData != null)56 {57 curContext.Response.ContentType = "application/vnd.ms-excel";58 curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;59 curContext.Response.Charset = "";60 strWriter = new StringWriter();61 htmlWriter = new HtmlTextWriter(strWriter);62 dgExport = new DataGrid();63 dgExport.DataSource = dtData.DefaultView;64 dgExport.AllowPaging = false;65 dgExport.DataBind();66 dgExport.RenderControl(htmlWriter);67 curContext.Response.Write(strWriter.ToString());68 curContext.Response.End();69 }70 }71 72 /// <summary>73 /// 導出Excel文件,并自定義文件名74 /// </summary>75 public static void DataTable3Excel(System.Data.DataTable dtData, String FileName)76 {77 GridView dgExport = null;78 HttpContext curContext = HttpContext.Current;79 StringWriter strWriter = null;80 HtmlTextWriter htmlWriter = null;81 82 if (dtData != null)83 {84 HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8);85 curContext.Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls");86 curContext.Response.ContentType = "application nd.ms-excel";87 curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;88 curContext.Response.Charset = "GB2312";89 strWriter = new StringWriter();90 htmlWriter = new HtmlTextWriter(strWriter);91 dgExport = new GridView();92 dgExport.DataSource = dtData.DefaultView;93 dgExport.AllowPaging = false;94 dgExport.DataBind();95 dgExport.RenderControl(htmlWriter);96 curContext.Response.Write(strWriter.ToString());97 curContext.Response.End();98 }99 } 100 101 /// <summary> 102 /// 將數據導出至Excel文件 103 /// </summary> 104 /// <param name="Table">DataTable對象</param> 105 /// <param name="ExcelFilePath">Excel文件路徑</param> 106 public static bool OutputToExcel(System.Data.DataTable Table, string ExcelFilePath) 107 { 108 if (File.Exists(ExcelFilePath)) 109 { 110 throw new Exception("該文件已經存在!"); 111 } 112 113 if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table")) 114 { 115 Table.TableName = "Sheet1"; 116 } 117 118 //數據表的列數 119 int ColCount = Table.Columns.Count; 120 121 //用于記數,實例化參數時的序號 122 int i = 0; 123 124 //創建參數 125 OleDbParameter[] para = new OleDbParameter[ColCount]; 126 127 //創建表結構的SQL語句 128 string TableStructStr = @"Create Table " + Table.TableName + "("; 129 130 //連接字符串 131 string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;"; 132 OleDbConnection objConn = new OleDbConnection(connString); 133 134 //創建表結構 135 OleDbCommand objCmd = new OleDbCommand(); 136 137 //數據類型集合 138 ArrayList DataTypeList = new ArrayList(); 139 DataTypeList.Add("System.Decimal"); 140 DataTypeList.Add("System.Double"); 141 DataTypeList.Add("System.Int16"); 142 DataTypeList.Add("System.Int32"); 143 DataTypeList.Add("System.Int64"); 144 DataTypeList.Add("System.Single"); 145 146 //遍歷數據表的所有列,用于創建表結構 147 foreach (DataColumn col in Table.Columns) 148 { 149 //如果列屬于數字列,則設置該列的數據類型為double 150 if (DataTypeList.IndexOf(col.DataType.ToString()) >= 0) 151 { 152 para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.Double); 153 objCmd.Parameters.Add(para[i]); 154 155 //如果是最后一列 156 if (i + 1 == ColCount) 157 { 158 TableStructStr += col.ColumnName + " double)"; 159 } 160 else 161 { 162 TableStructStr += col.ColumnName + " double,"; 163 } 164 } 165 else 166 { 167 para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.VarChar); 168 objCmd.Parameters.Add(para[i]); 169 170 //如果是最后一列 171 if (i + 1 == ColCount) 172 { 173 TableStructStr += col.ColumnName + " varchar)"; 174 } 175 else 176 { 177 TableStructStr += col.ColumnName + " varchar,"; 178 } 179 } 180 i++; 181 } 182 183 //創建Excel文件及文件結構 184 try 185 { 186 objCmd.Connection = objConn; 187 objCmd.CommandText = TableStructStr; 188 189 if (objConn.State == ConnectionState.Closed) 190 { 191 objConn.Open(); 192 } 193 objCmd.ExecuteNonQuery(); 194 } 195 catch (Exception exp) 196 { 197 throw exp; 198 } 199 200 //插入記錄的SQL語句 201 string InsertSql_1 = "Insert into " + Table.TableName + " ("; 202 string InsertSql_2 = " Values ("; 203 string InsertSql = ""; 204 205 //遍歷所有列,用于插入記錄,在此創建插入記錄的SQL語句 206 for (int colID = 0; colID < ColCount; colID++) 207 { 208 if (colID + 1 == ColCount) //最后一列 209 { 210 InsertSql_1 += Table.Columns[colID].ColumnName + ")"; 211 InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ")"; 212 } 213 else 214 { 215 InsertSql_1 += Table.Columns[colID].ColumnName + ","; 216 InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ","; 217 } 218 } 219 220 InsertSql = InsertSql_1 + InsertSql_2; 221 222 //遍歷數據表的所有數據行 223 for (int rowID = 0; rowID < Table.Rows.Count; rowID++) 224 { 225 for (int colID = 0; colID < ColCount; colID++) 226 { 227 if (para[colID].DbType == DbType.Double && Table.Rows[rowID][colID].ToString().Trim() == "") 228 { 229 para[colID].Value = 0; 230 } 231 else 232 { 233 para[colID].Value = Table.Rows[rowID][colID].ToString().Trim(); 234 } 235 } 236 try 237 { 238 objCmd.CommandText = InsertSql; 239 objCmd.ExecuteNonQuery(); 240 } 241 catch (Exception exp) 242 { 243 string str = exp.Message; 244 } 245 } 246 try 247 { 248 if (objConn.State == ConnectionState.Open) 249 { 250 objConn.Close(); 251 } 252 } 253 catch (Exception exp) 254 { 255 throw exp; 256 } 257 return true; 258 } 259 260 /// <summary> 261 /// 將數據導出至Excel文件 262 /// </summary> 263 /// <param name="Table">DataTable對象</param> 264 /// <param name="Columns">要導出的數據列集合</param> 265 /// <param name="ExcelFilePath">Excel文件路徑</param> 266 public static bool OutputToExcel(System.Data.DataTable Table, ArrayList Columns, string ExcelFilePath) 267 { 268 if (File.Exists(ExcelFilePath)) 269 { 270 throw new Exception("該文件已經存在!"); 271 } 272 273 //如果數據列數大于表的列數,取數據表的所有列 274 if (Columns.Count > Table.Columns.Count) 275 { 276 for (int s = Table.Columns.Count + 1; s <= Columns.Count; s++) 277 { 278 Columns.RemoveAt(s); //移除數據表列數后的所有列 279 } 280 } 281 282 //遍歷所有的數據列,如果有數據列的數據類型不是 DataColumn,則將它移除 283 DataColumn column = new DataColumn(); 284 for (int j = 0; j < Columns.Count; j++) 285 { 286 try 287 { 288 column = (DataColumn)Columns[j]; 289 } 290 catch (Exception) 291 { 292 Columns.RemoveAt(j); 293 } 294 } 295 if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table")) 296 { 297 Table.TableName = "Sheet1"; 298 } 299 300 //數據表的列數 301 int ColCount = Columns.Count; 302 303 //創建參數 304 OleDbParameter[] para = new OleDbParameter[ColCount]; 305 306 //創建表結構的SQL語句 307 string TableStructStr = @"Create Table " + Table.TableName + "("; 308 309 //連接字符串 310 string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;"; 311 OleDbConnection objConn = new OleDbConnection(connString); 312 313 //創建表結構 314 OleDbCommand objCmd = new OleDbCommand(); 315 316 //數據類型集合 317 ArrayList DataTypeList = new ArrayList(); 318 DataTypeList.Add("System.Decimal"); 319 DataTypeList.Add("System.Double"); 320 DataTypeList.Add("System.Int16"); 321 DataTypeList.Add("System.Int32"); 322 DataTypeList.Add("System.Int64"); 323 DataTypeList.Add("System.Single"); 324 325 DataColumn col = new DataColumn(); 326 327 //遍歷數據表的所有列,用于創建表結構 328 for (int k = 0; k < ColCount; k++) 329 { 330 col = (DataColumn)Columns[k]; 331 332 //列的數據類型是數字型 333 if (DataTypeList.IndexOf(col.DataType.ToString().Trim()) >= 0) 334 { 335 para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.Double); 336 objCmd.Parameters.Add(para[k]); 337 338 //如果是最后一列 339 if (k + 1 == ColCount) 340 { 341 TableStructStr += col.Caption.Trim() + " Double)"; 342 } 343 else 344 { 345 TableStructStr += col.Caption.Trim() + " Double,"; 346 } 347 } 348 else 349 { 350 para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.VarChar); 351 objCmd.Parameters.Add(para[k]); 352 353 //如果是最后一列 354 if (k + 1 == ColCount) 355 { 356 TableStructStr += col.Caption.Trim() + " VarChar)"; 357 } 358 else 359 { 360 TableStructStr += col.Caption.Trim() + " VarChar,"; 361 } 362 } 363 } 364 365 //創建Excel文件及文件結構 366 try 367 { 368 objCmd.Connection = objConn; 369 objCmd.CommandText = TableStructStr; 370 371 if (objConn.State == ConnectionState.Closed) 372 { 373 objConn.Open(); 374 } 375 objCmd.ExecuteNonQuery(); 376 } 377 catch (Exception exp) 378 { 379 throw exp; 380 } 381 382 //插入記錄的SQL語句 383 string InsertSql_1 = "Insert into " + Table.TableName + " ("; 384 string InsertSql_2 = " Values ("; 385 string InsertSql = ""; 386 387 //遍歷所有列,用于插入記錄,在此創建插入記錄的SQL語句 388 for (int colID = 0; colID < ColCount; colID++) 389 { 390 if (colID + 1 == ColCount) //最后一列 391 { 392 InsertSql_1 += Columns[colID].ToString().Trim() + ")"; 393 InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ")"; 394 } 395 else 396 { 397 InsertSql_1 += Columns[colID].ToString().Trim() + ","; 398 InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ","; 399 } 400 } 401 402 InsertSql = InsertSql_1 + InsertSql_2; 403 404 //遍歷數據表的所有數據行 405 DataColumn DataCol = new DataColumn(); 406 for (int rowID = 0; rowID < Table.Rows.Count; rowID++) 407 { 408 for (int colID = 0; colID < ColCount; colID++) 409 { 410 //因為列不連續,所以在取得單元格時不能用行列編號,列需得用列的名稱 411 DataCol = (DataColumn)Columns[colID]; 412 if (para[colID].DbType == DbType.Double && Table.Rows[rowID][DataCol.Caption].ToString().Trim() == "") 413 { 414 para[colID].Value = 0; 415 } 416 else 417 { 418 para[colID].Value = Table.Rows[rowID][DataCol.Caption].ToString().Trim(); 419 } 420 } 421 try 422 { 423 objCmd.CommandText = InsertSql; 424 objCmd.ExecuteNonQuery(); 425 } 426 catch (Exception exp) 427 { 428 string str = exp.Message; 429 } 430 } 431 try 432 { 433 if (objConn.State == ConnectionState.Open) 434 { 435 objConn.Close(); 436 } 437 } 438 catch (Exception exp) 439 { 440 throw exp; 441 } 442 return true; 443 } 444 #endregion 445 446 /// <summary> 447 /// 獲取Excel文件數據表列表 448 /// </summary> 449 public static ArrayList GetExcelTables(string ExcelFileName) 450 { 451 System.Data.DataTable dt = new System.Data.DataTable(); 452 ArrayList TablesList = new ArrayList(); 453 if (File.Exists(ExcelFileName)) 454 { 455 using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + ExcelFileName)) 456 { 457 try 458 { 459 conn.Open(); 460 dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" }); 461 } 462 catch (Exception exp) 463 { 464 throw exp; 465 } 466 467 //獲取數據表個數 468 int tablecount = dt.Rows.Count; 469 for (int i = 0; i < tablecount; i++) 470 { 471 string tablename = dt.Rows[i][2].ToString().Trim().TrimEnd('$'); 472 if (TablesList.IndexOf(tablename) < 0) 473 { 474 TablesList.Add(tablename); 475 } 476 } 477 } 478 } 479 return TablesList; 480 } 481 482 /// <summary> 483 /// 將Excel文件導出至DataTable(第一行作為表頭) 484 /// </summary> 485 /// <param name="ExcelFilePath">Excel文件路徑</param> 486 /// <param name="TableName">數據表名,如果數據表名錯誤,默認為第一個數據表名</param> 487 public static DataTable InputFromExcel(string ExcelFilePath, string TableName) 488 { 489 if (!File.Exists(ExcelFilePath)) 490 { 491 throw new Exception("Excel文件不存在!"); 492 } 493 494 //如果數據表名不存在,則數據表名為Excel文件的第一個數據表 495 ArrayList TableList = new ArrayList(); 496 TableList = GetExcelTables(ExcelFilePath); 497 498 if (TableName.IndexOf(TableName) < 0) 499 { 500 TableName = TableList[0].ToString().Trim(); 501 } 502 503 DataTable table = new DataTable(); 504 OleDbConnection dbcon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0"); 505 OleDbCommand cmd = new OleDbCommand("select * from [" + TableName + "$]", dbcon); 506 OleDbDataAdapter adapter = new OleDbDataAdapter(cmd); 507 508 try 509 { 510 if (dbcon.State == ConnectionState.Closed) 511 { 512 dbcon.Open(); 513 } 514 adapter.Fill(table); 515 } 516 catch (Exception exp) 517 { 518 throw exp; 519 } 520 finally 521 { 522 if (dbcon.State == ConnectionState.Open) 523 { 524 dbcon.Close(); 525 } 526 } 527 return table; 528 } 529 530 /// <summary> 531 /// 獲取Excel文件指定數據表的數據列表 532 /// </summary> 533 /// <param name="ExcelFileName">Excel文件名</param> 534 /// <param name="TableName">數據表名</param> 535 public static ArrayList GetExcelTableColumns(string ExcelFileName, string TableName) 536 { 537 DataTable dt = new DataTable(); 538 ArrayList ColsList = new ArrayList(); 539 if (File.Exists(ExcelFileName)) 540 { 541 using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + ExcelFileName)) 542 { 543 conn.Open(); 544 dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, TableName, null }); 545 546 //獲取列個數 547 int colcount = dt.Rows.Count; 548 for (int i = 0; i < colcount; i++) 549 { 550 string colname = dt.Rows[i]["Column_Name"].ToString().Trim(); 551 ColsList.Add(colname); 552 } 553 } 554 } 555 return ColsList; 556 } 557 } 558 }網上搜集的常用類,這里不再測試。
方案四
將Excel另存為xml文件,對xml文件進行操作。
1 <Row>2 <Cell><Data ss:Type="String">998</Data></Cell>3 <Cell><Data ss:Type="String">柳雪巧</Data></Cell>4 <Cell><Data ss:Type="String">f</Data></Cell>5 <Cell><Data ss:Type="String">1971/4/30 0:00:00</Data></Cell>6 <Cell><Data ss:Type="String">2005/1/15 0:00:00</Data></Cell>7 <Cell><Data ss:Type="String">臺灣省 屏東縣</Data></Cell>8 <Cell><Data ss:Type="String">Dolores19710430@139.com</Data></Cell>9 <Cell><Data ss:Type="String">12616310511</Data></Cell> 10 <Cell><Data ss:Type="String">False</Data></Cell> 11 <Cell><Data ss:Type="String">2014/3/15 10:13:54</Data></Cell> 12 <Cell><Data ss:Type="String">5</Data></Cell> 13 </Row>excel表格中每一行數據,其實是以上格式的xml,有規律,就可以很容易的去解析。
方案五
?js插件
官網地址:http://datatables.net/extras/tabletools/
?
方案六
導出為csv文件
分享一個輔助類
1 using System.Data;2 using System.IO;3 4 public static class CsvHelper5 {6 /// <summary>7 /// 導出報表為Csv8 /// </summary>9 /// <param name="dt">DataTable</param> 10 /// <param name="strFilePath">物理路徑</param> 11 /// <param name="tableheader">表頭</param> 12 /// <param name="columname">字段標題,逗號分隔</param> 13 public static bool dt2csv(DataTable dt, string strFilePath, string tableheader, string columname) 14 { 15 try 16 { 17 string strBufferLine = ""; 18 StreamWriter strmWriterObj = new StreamWriter(strFilePath,false,System.Text.Encoding.UTF8); 19 strmWriterObj.WriteLine(tableheader); 20 strmWriterObj.WriteLine(columname); 21 for (int i = 0; i < dt.Rows.Count; i++) 22 { 23 strBufferLine = ""; 24 for (int j = 0; j < dt.Columns.Count; j++) 25 { 26 if (j > 0) 27 strBufferLine += ","; 28 strBufferLine += dt.Rows[i][j].ToString(); 29 } 30 strmWriterObj.WriteLine(strBufferLine); 31 } 32 strmWriterObj.Close(); 33 return true; 34 } 35 catch 36 { 37 return false; 38 } 39 } 40 41 /// <summary> 42 /// 將Csv讀入DataTable 43 /// </summary> 44 /// <param name="filePath">csv文件路徑</param> 45 /// <param name="n">表示第n行是字段title,第n+1行是記錄開始</param> 46 public static DataTable csv2dt(string filePath, int n, DataTable dt) 47 { 48 StreamReader reader = new StreamReader(filePath, System.Text.Encoding.UTF8, false); 49 int i = 0, m = 0; 50 reader.Peek(); 51 while (reader.Peek() > 0) 52 { 53 m = m + 1; 54 string str = reader.ReadLine(); 55 if (m >= n + 1) 56 { 57 string[] split = str.Split(','); 58 59 System.Data.DataRow dr = dt.NewRow(); 60 for (i = 0; i < split.Length; i++) 61 { 62 dr[i] = split[i]; 63 } 64 dt.Rows.Add(dr); 65 } 66 } 67 return dt; 68 } 69 }不再測試。
方案七
使用模版的方式,最簡單的模版,就是將表頭列出,然后再導入數據。第一行為表頭,從第二行開始寫入數據。導入過程可參考前面的解決方案。
方案八
使用Aspose.Cells組件,貌似收費。
可參考:http://www.cnblogs.com/lanyue52011/p/3372452.html
http://www.cnblogs.com/hongjiumu/archive/2013/03/15/2962277.html
http://www.cnblogs.com/wujy/archive/2012/07/19/2600162.html
方案九
OpenXML
?OpenXML庫:DocumentFormat.OpenXml.dll;
?參考:http://www.cnblogs.com/zlgcool/archive/2008/12/31/1365993.html
http://blog.sina.com.cn/s/blog_46e9573c01011bvs.html
總結
列出常見的幾種解決方案,在實際項目中,用哪一種,還是根據項目環境來決定吧。
最近項目中用到了Excel導出,導入的功能,就想著將常見的方式總結一下。也許還有遺漏,請留言,將你知道也分享給大家,謝謝。
如果該文章對你有所幫助,不妨推薦一下,讓更多的人知道,畢竟分享是件快樂的事情。
代碼下載:鏈接:http://pan.baidu.com/s/1dD3lleT?密碼:axli
總結
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