asp.net 将数据集中的数据导入到excel中

参考地址：http://www.cnblogs.com/xuanhun/archive/2010/04/29/1724500.html

参考地址：百度文库，excel格式设置：http://wenku.baidu.com/view/f5f862ff04a1b0717fd5dd10.html。

参考地址：excel参考地址:http://topic.csdn.net/u/20080904/09/8c0013c6-536f-4746-9786-2ad9a230c133.html

参考地址：http://www.cnblogs.com/smjack/archive/2009/02/25/1398257.html





本人写的代码。

可供参考：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using Microsoft.Office.Interop.Excel;
using System.IO;
using System.Configuration;
using System.Drawing;
namespace excel
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string constring = ConfigurationManager.ConnectionStrings["CS"].ToString();
            SqlConnection con = new SqlConnection(constring);
            con.Open();
            SqlDataAdapter da = new SqlDataAdapter("select * from counter", con);
            DataSet a = new DataSet();
            da.Fill(a);
            //建立一个文件 夹
            //Console.WriteLine("...正在创建文件夹wtq.../n/n/n");
            DirectoryInfo dir = new DirectoryInfo("c://wtq//wtq");
            if (!dir.Exists)
            {
                dir.Create();
            }
            else
            {
                Response.Write("你创建的文件夹已存在，/n/n/n"); 
            }
            //开始EXCEL
             
            object objOpt = System.Reflection.Missing.Value;
            Microsoft.Office.Interop.Excel.Application ap = new Application();
            ap.Visible = true;
            Microsoft.Office.Interop.Excel._Workbook wk = ap.Workbooks.Add(objOpt);
        Sheets sheet = wk.Sheets; 
           // Microsoft.Office.Interop.Excel._Worksheet ws = (Microsoft.Office.Interop.Excel._Worksheet)wk.ActiveSheet;
        _Worksheet ws = (_Worksheet)sheet.get_Item(2);
        _Worksheet wss = (_Worksheet)sheet.get_Item(1);
        ws.Activate();//激活那个sheet
        ws.Name = "重命名表单";//重命名表单
        ws.Columns.ColumnWidth = 20;//设置列宽
        ws.Columns.RowHeight = 20;//设置行号
       
        
           
        //ap.Cells[1, 1] = "id";
        //ap.Cells[1, 2] = "businessNum";
        //ap.Cells[1, 3] = "exportTime";
        //ap.Cells[1, 4] = "shipSide";
        //ap.Cells[1, 5] = "shipOwner";
        //ap.Cells[1, 6] = "destinationPort";
      ws.Cells[1, 1] = "id";
        ws.Cells[1, 2] = "businessNum";
        ws.Cells[1, 3] = "exportTime";
        ws.Cells[1, 4] = "shipSide";
        ws.Cells[1, 5] = "shipOwner";
        ws.Cells[1, 6] = "destinationPort";
        wss.Cells[1, 1] = "标识符";
        wss.Cells[1, 2] = "业务号";
        wss.Cells[1, 3] = "ETD";
        wss.Cells[1, 4] = "码头";
        wss.Cells[1, 5] = "船长";
        wss.Cells[1, 6] = "目的港";
            for (int i = 0; i < a.Tables[0].Rows.Count; i++)
            {
                //ap.Cells[i + 2, 1] = a.Tables[0].Rows[i][0];
                //ap.Cells[i + 2, 2] = a.Tables[0].Rows[i][1];
                //ap.Cells[i + 2, 3] = a.Tables[0].Rows[i][2];
                //ap.Cells[i + 2, 4] = a.Tables[0].Rows[i][3];
                //ap.Cells[i + 2, 5] = a.Tables[0].Rows[i][4];
                //ap.Cells[i + 2, 6] = a.Tables[0].Rows[i][5];
                ws.Cells[i + 2, 1] = a.Tables[0].Rows[i][0];
                ws.Cells[i + 2, 2] = a.Tables[0].Rows[i][1];
                ws.Cells[i + 2, 3] = a.Tables[0].Rows[i][2];
                ws.Cells[i + 2, 4] = a.Tables[0].Rows[i][3];
                ws.Cells[i + 2, 5] = a.Tables[0].Rows[i][4];
                ws.Cells[i + 2, 6] = a.Tables[0].Rows[i][5];
                wss.Cells[i + 2, 1] = a.Tables[0].Rows[i][0];
                wss.Cells[i + 2, 2] = a.Tables[0].Rows[i][1];
                wss.Cells[i + 2, 3] = a.Tables[0].Rows[i][2];
                wss.Cells[i + 2, 4] = a.Tables[0].Rows[i][3];
                wss.Cells[i + 2, 5] = a.Tables[0].Rows[i][4];
                wss.Cells[i + 2, 6] = a.Tables[0].Rows[i][5];
              
            }
 
          
            Range range = ws.get_Range(ws.Cells[1,1],ws.Cells[1,6]);  //选定单元格的范围
            range.Borders.Color = System.Drawing.ColorTranslator.ToOle(Color.Red);//设置边框的颜色
          //  range.Borders.get_Item(XlBordersIndex.xlEdgeBottom).Color = ColorTranslator.ToOle(Color.Blue);
            
            range.Font.Color =ColorTranslator.ToOle(Color.Blue);//设置区域字体颜色
            range.Font.Bold = true;//设置字体为粗体。
         range.Columns.RowHeight = 40;//设置局部行高
         range.Columns.ColumnWidth = 40;//设置局部列宽
         range.Interior.Color = 15;  //设置背景颜色
         range.BorderAround(XlLineStyle.xlDot, XlBorderWeight.xlThick, XlColorIndex.xlColorIndexAutomatic, 15);
         
            try
            {
               
                wk.SaveAs("c://wtq//wtq//sjj", objOpt, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
                
            }
            catch (Exception ex)
            {
                
            }
         //   wk.Close(false,objOpt,objOpt);
            
            
        }
    }
}

注意：使用 wss.Cells[i + 2, 6] = a.Tables[0].Rows[i][5];这种方法给excel表格效率非常低。

应当使用如下，

这是我定义好的借口以后可以使用。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.Office.Interop.Excel;
using System.Reflection;
using System.Data;
using System.IO;
using System.Text;
namespace excel
{
    public class exportExcel
    {
       public exportExcel()
        {
        }
       private Application excelApp = null;//定义excel应用程序
       private _Workbook workBook = null;//定义工作簿
       private _Worksheet workSheet =null; //定义工作表
       private Range range = null;         //定义单元格区域
       private object objOpt = Missing.Value;
        
       public void Create()   //
       {  
           /*初始化对象*/
           excelApp = new Application();
           workBook = excelApp.Workbooks.Add(objOpt);
           workSheet = (_Worksheet)workBook.ActiveSheet;
           excelApp.Visible = true;
        }
        /// <summary>
        /// 从dataset中获取数据，并将其存入到excel中。
        /// </summary>
        /// <param name="ds">数据集</param>
        /// <param name="title">标题数组</param>
       public  void GetDataToExcel(DataSet ds, object[] title)
        {
            int rowCount = ds.Tables[0].Rows.Count;//数据集的行数。
         // int colCount = ds.Tables[0].Columns.Count;//数据集的列数。
            int colCount = 6;
            object[,] data=new object[rowCount,colCount];
            for (int i = 0;i < colCount; i++)    //设置标题
            {
                workSheet.Cells[1 , i+1] = title[i] ;
            }
            for (int i = 0; i < rowCount; i++)
            {
                for (int j = 0; j < colCount; j++)
                {
                    data[i, j] = ds.Tables[0].Rows[i][j].ToString();
                }
            }
             workSheet.get_Range(workSheet.Cells[2,1],workSheet.Cells[rowCount+1,colCount]).Value2=data;
             range = workSheet.get_Range(workSheet.Cells[1, 1], workSheet.Cells[1, colCount]);  //选定单元格的范围
             range.Interior.Color = 255;  //设置背景颜色
             range.BorderAround(XlLineStyle.xlDot, XlBorderWeight.xlThick, XlColorIndex.xlColorIndexAutomatic, 15);
           //定义一个目录
           DirectoryInfo dir = new DirectoryInfo("c://wtq//wtq");
             if (!dir.Exists)
             {
                 dir.Create();
             }
             else
             {
                 HttpContext.Current.Response.Write("你创建的文件夹已存在，/n/n/n");
             }
             try
             {
            workBook.SaveAs("c://wtq//wtq//sjj", objOpt, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
             }
             catch (Exception ex)
             {
                 HttpContext.Current.Response.Write(ex);
             }
       }
       
    
          
         
       
    }
}

使用旁边代码：workSheet.get_Range(workSheet.Cells[2,1],workSheet.Cells[rowCount+1,colCount]).Value2=data;

这种效率比较高。