C# 操作EXCEL(C#中的數據導出EXCEL)

今天開發項項目剛好要用到一個導出EXCEL的功能，在網上找了很久，就是沒有一個合適的，於是我自己寫了一個通用的類，希望對大家也有所幫助。

using System; using System.Collections.Generic; using System.Text; using System.Data; using System.IO; using System.Web; using Microsoft.Office.Interop.Excel; /* * 開發人員：小笨蛋 * 時間：2009年11月17日 * 功能：將數據導出Excel * */ namespace XT.LiTree.Logic { public class ExcelExport { /// <summary> /// 直接導出Excel /// </summary> /// <param name="ds">數據源DataSet</param> /// <param name="fileName">保存文件名(例如：E:/a.xls)</param> /// <returns></returns> public bool DoExport(DataSet ds, string fileName) { if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } Application excel = new ApplicationClass(); int rowindex = 1; int colindex = 0; Workbook work = excel.Workbooks.Add(true); //Worksheet sheet1 = (Worksheet)work.Worksheets[0]; System.Data.DataTable table = ds.Tables[0]; foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[1, colindex] = col.ColumnName; } foreach (DataRow row in table.Rows) { rowindex++; colindex = 0; foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[rowindex, colindex] = row[col.ColumnName].ToString(); } } excel.Visible = false; //((Worksheet)work.Sheets[0]).Name = "sss"; excel.ActiveWorkbook.SaveAs(fileName, XlFileFormat.xlExcel9795, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null); excel.Quit(); excel = null; GC.Collect(); return true; } /// <summary> /// 直接導出Excel /// </summary> /// <param name="ds">數據源DataSet</param> /// <param name="columns">列名數組,允許爲空(columns=null),爲空則表使用默認數據庫列名 </param> /// <param name="fileName">保存文件名(例如：E:/a.xls)</param> /// <returns></returns> public bool DoExport(DataSet ds, string[] columns, string fileName) { if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } Application excel = new ApplicationClass(); int rowindex = 1; int colindex = 0; Workbook work = excel.Workbooks.Add(true); //Worksheet sheet1 = (Worksheet)work.Worksheets[0]; System.Data.DataTable table = ds.Tables[0]; if (columns != null) { for (int i = 0; i < columns.Length; i++) { colindex++; if (columns[i] != null && columns[i] != "") { excel.Cells[1, colindex] = columns[i]; } else { excel.Cells[1, colindex] = table.Columns[i].ColumnName; } } } else { foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[1, colindex] = col.ColumnName; } } foreach (DataRow row in table.Rows) { rowindex++; colindex = 0; foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[rowindex, colindex] = row[col.ColumnName].ToString(); } } excel.Visible = false; //((Worksheet)work.Sheets[0]).Name = "sss"; excel.ActiveWorkbook.SaveAs(fileName, XlFileFormat.xlExcel9795, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null); excel.Quit(); excel = null; GC.Collect(); return true; } /// <summary> /// 直接導出Excel /// </summary> /// <param name="sql">SQL查詢語句</param> /// <param name="columns">列名數組</param> /// <param name="fileName">保存文件名(例如：E:/a.xls)</param> /// <returns></returns> public bool DoExport(string sql, string[] columns, string fileName) { Dao.DataBase db = new XT.LiTree.Dao.DataBase(); DataSet ds = db.GetDS(sql); if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } Application excel = new ApplicationClass(); int rowindex = 1; int colindex = 0; Workbook work = excel.Workbooks.Add(true); //Worksheet sheet1 = (Worksheet)work.Worksheets[0]; System.Data.DataTable table = ds.Tables[0]; if (columns != null) { for (int i = 0; i < columns.Length; i++) { colindex++; if (columns[i] != null && columns[i] != "") { excel.Cells[1, colindex] = columns[i]; } else { excel.Cells[1, colindex] = table.Columns[i].ColumnName; } } } else { foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[1, colindex] = col.ColumnName; } } foreach (DataRow row in table.Rows) { rowindex++; colindex = 0; foreach (DataColumn col in table.Columns) { colindex++; excel.Cells[rowindex, colindex] = row[col.ColumnName].ToString(); } } excel.Visible = false; //((Worksheet)work.Sheets[0]).Name = "sss"; excel.ActiveWorkbook.SaveAs(fileName, XlFileFormat.xlExcel9795, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null); excel.Quit(); excel = null; GC.Collect(); return true; } /// <summary> /// 通過流導出Excel /// </summary> /// <param name="ds">數據源DataSet</param> /// <param name="fileName">保存文件名(例如：a.xls)</param> /// <returns></returns> public bool StreamExport(DataSet ds, string fileName) { if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } System.Data.DataTable dt = ds.Tables[0]; StringBuilder content = new StringBuilder(); StringBuilder strtitle = new StringBuilder(); content.Append("<html xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel' xmlns='http://www.w3.org/TR/REC-html40'>"); content.Append("<head><title></title><meta http-equiv='Content-Type' content=/"text/html; charset=gb2312/"></head><body><table x:str cellspacing='0' rules='all' border='1' id='title1' style="border-collapse:collapse;" mce_style="border-collapse:collapse;">"); content.Append("<tr>"); for (int j = 0; j < dt.Columns.Count; j++) { content.Append("<td>" + dt.Columns[j].ColumnName + "</td>"); } content.Append("</tr>/n"); for (int j = 0; j < dt.Rows.Count; j++) { content.Append("<tr>"); for (int k = 0; k < dt.Columns.Count; k++) { content.Append("<td>" + dt.Rows[j][k].ToString() + "</td>"); } content.Append("</tr>/n"); } content.Append("</table></body></html>"); content.Replace(" ", ""); //fileContent = (byte[])System.Text.Encoding.Default.GetBytes(content.ToString()); //System.Web.UI.WebControls. System.Web.HttpContext.Current.Response.Clear(); System.Web.HttpContext.Current.Response.Buffer = true; System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel"; System.Web.HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);//HttpUtility.UrlEncode(fileName)); // HttpUtility.UrlEncode(fileName,Encoding.UTF8); //System.Web.HttpContext.Current.Response.ContentEncoding=System.Text.Encoding.Default; System.Web.HttpContext.Current.Response.Write(content.ToString()); System.Web.HttpContext.Current.Response.End(); return true; } /// <summary> /// 通過流導出Excel /// </summary> /// <param name="ds">數據源DataSet</param> /// <param name="columns">列名數組,允許爲空(columns=null),爲空則表使用默認數據庫列名</param> /// <param name="fileName"></param> /// <returns></returns> public bool StreamExport(DataSet ds, string[] columns, string fileName) { if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } System.Data.DataTable dt = ds.Tables[0]; StringBuilder content = new StringBuilder(); StringBuilder strtitle = new StringBuilder(); content.Append("<html xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel' xmlns='http://www.w3.org/TR/REC-html40'>"); content.Append("<head><title></title><meta http-equiv='Content-Type' content=/"text/html; charset=gb2312/"></head><body><table x:str cellspacing='0' rules='all' border='1' id='title1' style="border-collapse:collapse;" mce_style="border-collapse:collapse;">"); content.Append("<tr>"); if (columns != null) { for (int i = 0; i < columns.Length; i++) { if (columns[i] != null && columns[i] != "") { content.Append("<td>" + columns[i] + "</td>"); } else { content.Append("<td>" + dt.Columns[i].ColumnName + "</td>"); } } } else { for (int j = 0; j < dt.Columns.Count; j++) { content.Append("<td>" + dt.Columns[j].ColumnName + "</td>"); } } content.Append("</tr>/n"); for (int j = 0; j < dt.Rows.Count; j++) { content.Append("<tr>"); for (int k = 0; k < dt.Columns.Count; k++) { content.Append("<td>" + dt.Rows[j][k].ToString() + "</td>"); } content.Append("</tr>/n"); } content.Append("</table></body></html>"); content.Replace(" ", ""); //fileContent = (byte[])System.Text.Encoding.Default.GetBytes(content.ToString()); //System.Web.UI.WebControls. System.Web.HttpContext.Current.Response.Clear(); System.Web.HttpContext.Current.Response.Buffer = true; System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel"; System.Web.HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);//HttpUtility.UrlEncode(fileName)); // HttpUtility.UrlEncode(fileName,Encoding.UTF8); //System.Web.HttpContext.Current.Response.ContentEncoding=System.Text.Encoding.Default; System.Web.HttpContext.Current.Response.Write(content.ToString()); System.Web.HttpContext.Current.Response.End(); return true; } /// <summary> /// 通過流導出Excel /// </summary> /// <param name="ds">數據源DataSet</param> /// <param name="columns">列名數組,允許爲空(columns=null),爲空則表使用默認數據庫列名</param> /// <param name="fileName"></param> /// <returns></returns> public bool StreamExport(string sql, string[] columns, string fileName) { Dao.DataBase db = new XT.LiTree.Dao.DataBase(); DataSet ds = db.GetDS(sql); if (ds.Tables.Count == 0 || fileName == string.Empty) { return false; } System.Data.DataTable dt = ds.Tables[0]; StringBuilder content = new StringBuilder(); StringBuilder strtitle = new StringBuilder(); content.Append("<html xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel' xmlns='http://www.w3.org/TR/REC-html40'>"); content.Append("<head><title></title><meta http-equiv='Content-Type' content=/"text/html; charset=gb2312/"></head><body><table x:str cellspacing='0' rules='all' border='1' id='title1' style="border-collapse:collapse;" mce_style="border-collapse:collapse;">"); content.Append("<tr>"); if (columns != null) { for (int i = 0; i < columns.Length; i++) { if (columns[i] != null && columns[i] != "") { content.Append("<td>" + columns[i] + "</td>"); } else { content.Append("<td>" + dt.Columns[i].ColumnName + "</td>"); } } } else { for (int j = 0; j < dt.Columns.Count; j++) { content.Append("<td>" + dt.Columns[j].ColumnName + "</td>"); } } content.Append("</tr>/n"); for (int j = 0; j < dt.Rows.Count; j++) { content.Append("<tr>"); for (int k = 0; k < dt.Columns.Count; k++) { content.Append("<td>" + dt.Rows[j][k].ToString() + "</td>"); } content.Append("</tr>/n"); } content.Append("</table></body></html>"); content.Replace(" ", ""); //fileContent = (byte[])System.Text.Encoding.Default.GetBytes(content.ToString()); //System.Web.UI.WebControls. System.Web.HttpContext.Current.Response.Clear(); System.Web.HttpContext.Current.Response.Buffer = true; System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel"; System.Web.HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);//HttpUtility.UrlEncode(fileName)); // HttpUtility.UrlEncode(fileName,Encoding.UTF8); //System.Web.HttpContext.Current.Response.ContentEncoding=System.Text.Encoding.Default; System.Web.HttpContext.Current.Response.Write(content.ToString()); System.Web.HttpContext.Current.Response.End(); return true; } } }