(转) 数据导出到Excel（或Word）源代码大全

数据导出到Excel（或Word）源代码大全

在日常工作中，大家都习惯Office作为办公软件，因此，在开发软件的时，常常会有把数据导出到Excel等Office软件的需求。在此，收集一些常用的导出文件的源程序，希望给大家带来方便。（不断更新）

一、DataSet数据集内数据转化为Excel

// 作用：把DataSet数据集内数据转化为Excel、Word文件
// 描述：这些关于Excel、Word的导出方法，基本可以实现日常须要，其中有些方法可以把数据导出后
//       生成Xml格式，再导入数据库！有些屏蔽内容没有去掉，保留下来方便学习参考用之。
// 备注：请引用Office相应COM组件，导出Excel对象的一个方法要调用其中的一些方法和属性。
public void DataSetToExcel(DataSet ds,string FileName)
{
   try
   {
      //Web页面定义
      //System.Web.UI.Page mypage=new System.Web.UI.Page();

      HttpResponse resp;
      resp=HttpContext.Current.Response;
      resp.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
      resp.AppendHeader("Content-disposition","attachment;filename="+FileName+".xls");
      resp.ContentType="application/ms-excel";

      //变量定义
      string colHeaders=null;
      string Is_item=null;

      //显示格式定义////////////////


      //文件流操作定义
      //FileStream fs=new FileStream(FileName,FileMode.Create,FileAccess.Write);
      //StreamWriter sw=new StreamWriter(fs,System.Text.Encoding.GetEncoding("GB2312"));

      StringWriter sfw=new StringWriter();
      //定义表对象与行对象，同时用DataSet对其值进行初始化
      System.Data.DataTable dt=ds.Tables[0];
      DataRow[] myRow=dt.Select();
      int i=0;
      int cl=dt.Columns.Count;

      //取得数据表各列标题，各标题之间以/t分割，最后一个列标题后加回车符
      for(i=0;i<cl;i++)
      {
         //if(i==(cl-1))  //最后一列，加/n
         // colHeaders+=dt.Columns[i].Caption.ToString();
         //else
         colHeaders+=dt.Columns[i].Caption.ToString()+"/t";
      }
      sfw.WriteLine(colHeaders);
      //sw.WriteLine(colHeaders);

      //逐行处理数据
      foreach(DataRow row in myRow)
      {
         //当前数据写入
         for(i=0;i<cl;i++)
         {
          //if(i==(cl-1))
          //   Is_item+=row[i].ToString()+"/n";
          //else
          Is_item+=row[i].ToString()+"/t";
         }
         sfw.WriteLine(Is_item);
         //sw.WriteLine(Is_item);
         Is_item=null;
      }
      resp.Write(sfw);
      //resp.Clear();
      resp.End();
   }
   catch(Exception e)
   {
      throw e;
   }
}

 

二、DataSet数据集内数据转化为Excel文件（2）

/// ExportFiles 的摘要说明。
/// 作用：把DataSet数据集内数据转化为Excel文件
/// 描述：导出Excel文件
/// 备注：请引用Office相应COM组件，导出Excel对象的一个方法要调用其中的一些方法和属性。
/// </summary>
public class ExportFiles
{
    private string filePath = "";
    public ExportFiles(string excel_path)
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
        filePath = excel_path;
    }
    /// <summary>
    /// 将指定的Dataset导出到Excel文件
    /// </summary>
    /// <param name="dt"></param>
    /// <returns></returns>
    public bool ExportToExcel(System.Data.DataSet ds, string ReportName)
    {
        if (ds.Tables[0].Rows.Count == 0)
        {
            MessageBox.Show("数据集为空");
        }
        Microsoft.Office.Interop.Excel._Application xlapp = new ApplicationClass();
        Workbook xlbook = xlapp.Workbooks.Add(true);
        Worksheet xlsheet = (Worksheet)xlbook.Worksheets[1];
        Range range = xlsheet.get_Range(xlapp.Cells[1, 1], xlapp.Cells[1, ds.Tables[0].Columns.Count]);
        range.MergeCells = true;
        xlapp.ActiveCell.FormulaR1C1 = ReportName;
        xlapp.ActiveCell.Font.Size = 20;
        xlapp.ActiveCell.Font.Bold = true;
        xlapp.ActiveCell.HorizontalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;
        int colIndex = 0;
        int RowIndex = 2;
        //开始写入每列的标题
        foreach (DataColumn dc in ds.Tables[0].Columns)
        {
            colIndex++;
            xlsheet.Cells[RowIndex, colIndex] = dc.Caption;
        }
        //开始写入内容
        int RowCount = ds.Tables[0].Rows.Count;//行数
        for (int i = 0; i < RowCount; i++)
        {
            RowIndex++;
            int ColCount = ds.Tables[0].Columns.Count;//列数
            for (colIndex = 1; colIndex <= ColCount; colIndex++)
            {
                xlsheet.Cells[RowIndex, colIndex] = ds.Tables[0].Rows[i][colIndex - 1];//dg[i, colIndex - 1];
                xlsheet.Cells.ColumnWidth = ds.Tables[0].Rows[i][colIndex - 1].ToString().Length;
            }
        }

        xlbook.Saved = true;
        xlbook.SaveCopyAs(filePath);
        xlapp.Quit();
        GC.Collect();
        return true;
    }

    public bool ExportToExcelOF(System.Data.DataSet ds, string ReportName)
    {
        if (ds.Tables[0].Rows.Count == 0)
        {
            MessageBox.Show("数据集为空");
        }
        string FileName = filePath;

        //System.Data.DataTable dt = new System.Data.DataTable();
        FileStream objFileStream;
        StreamWriter objStreamWriter;
        string strLine = "";
        objFileStream = new FileStream(FileName, FileMode.OpenOrCreate, FileAccess.Write);
        objStreamWriter = new StreamWriter(objFileStream, System.Text.Encoding.Unicode);

        strLine = ReportName;
        objStreamWriter.WriteLine(strLine);
        strLine = "";

        for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
        {
            strLine = strLine + ds.Tables[0].Columns[i].ColumnName.ToString() + "          " + Convert.ToChar(9);
        }
        objStreamWriter.WriteLine(strLine);
        strLine = "";

        for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
        {
            strLine = strLine + (i + 1) + Convert.ToChar(9);
            for (int j = 1; j < ds.Tables[0].Columns.Count; j++)
            {
                strLine = strLine + ds.Tables[0].Rows[i][j].ToString() + Convert.ToChar(9);
            }
            objStreamWriter.WriteLine(strLine);
            strLine = "";
        }
        objStreamWriter.Close();
        objFileStream.Close();

        //Microsoft.Office.Interop.Excel._Application xlapp = new ApplicationClass();
        //Workbook xlbook = xlapp.Workbooks.Add(true);
        //Worksheet xlsheet = (Worksheet)xlbook.Worksheets[1];
        //Range range = xlsheet.get_Range(xlapp.Cells[1, 1], xlapp.Cells[1, ds.Tables[0].Columns.Count]);
        //range.EntireColumn.AutoFit();
        //xlapp.Quit();
        return true;
    }
}

 

三、生成XML然后转换成Excel方式

参考资源：http://www.codeproject.com/office/Excel_Export.asp?df=100&forumid=329437&fr=51 （源程序） 优点：  a. 服务端不用安装Excel程序。  b. 支持一定的Excel文件格式设置，比如字体大小、颜色、合并单元格等。  缺点：  a. 与Excel 2000不兼容：由于Excel 2000不支持XML，所以以这种方法生成的Excel文件可能在Excel2000中不兼容（毕竟目前还有不少用户的电脑装的是Excel 2000）。  b. 可能不支持Excel文件页边距的设置；不支持Excel文件横向、纵向的设置；不支持Excel模板；  c. 编程工作量比较大；  d. 生成的文件本质上是XML文件，需要“另存为xls”才能变成真正的Excel文件。  e. 性能是好是坏还不清楚，目前还没真正在项目中用过。希望有用过此方案的朋友能介绍一下这个方案的性能。

四、导出GridView到Excel

//导出GridView到Excel中的关键之处
//用法： ToExcel(GVStaff, TextBox1.Text);

public static void ToExcel(System.Web.UI.Control ctl,string FileName)
{
    HttpContext.Current.Response.Charset ="UTF-8";
    HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
    HttpContext.Current.Response.ContentType ="application/ms-excel";
    HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename="+""+FileName+".xls");
    ctl.Page.EnableViewState =false;
    System.IO.StringWriter  tw = new System.IO.StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(tw);
    ctl.RenderControl(hw);
    HttpContext.Current.Response.Write(tw.ToString());
    HttpContext.Current.Response.End();
}

必须有下面这句！否则不会通过！
public override void VerifyRenderingInServerForm(Control control)
{
    // Confirms that an HtmlForm control is rendered for
}

 

五、DataTable导出到Excel

using System;
using Microsoft.Office.Interop.Excel;
using System.Windows.Forms;
namespace DongVI
{
 /// <summary>
 /// DataTable导出到Excel
 /// 整理:dongVi
 /// </summary>
 public class DataTableToExcel
 {
  private DataTableToExcel()
  {

  }
  /// <summary>
  /// 导出Excel
  /// </summary>
  /// <param name="dt">要导出的DataTable</param>
  public static void ExportToExcel(System.Data.DataTable dt )
  {
   if (dt == null) return;

   Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
   if (xlApp == null)
   {
    // lblMsg.Text = "无法创建Excel对象，可能您的电脑未安装Excel";
    MessageBox.Show( "无法创建Excel对象，可能您的电脑未安装Excel" );
    return;
   }
   System.Windows.Forms.SaveFileDialog saveDia = new SaveFileDialog();
   saveDia.Filter = "Excel|*.xls";
   saveDia.Title = "导出为Excel文件";
   if(saveDia.ShowDialog()== System.Windows.Forms.DialogResult.OK
    && !string.Empty.Equals(saveDia.FileName))
   {
    Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
    Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
    Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1
    Microsoft.Office.Interop.Excel.Range range = null;
    long totalCount = dt.Rows.Count;
    long rowRead = 0;
    float percent = 0;
    string fileName = saveDia.FileName;
    //写入标题
    for (int i = 0; i < dt.Columns.Count; i++)
    {
     worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
     range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i + 1];
     //range.Interior.ColorIndex = 15;//背景颜色
     range.Font.Bold = true;//粗体
     range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;//居中
     //加边框
     range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null);
     //range.ColumnWidth = 4.63;//设置列宽
     //range.EntireColumn.AutoFit();//自动调整列宽
     //r1.EntireRow.AutoFit();//自动调整行高
    }
    //写入内容
    for (int r = 0; r < dt.DefaultView.Count; r++)
    {
     for (int i = 0; i < dt.Columns.Count; i++)
     {
      worksheet.Cells[r + 2, i + 1] = dt.DefaultView[r][i];
      range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[r + 2, i + 1];
      range.Font.Size = 9;//字体大小
      //加边框
      range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null);
      range.EntireColumn.AutoFit();//自动调整列宽
     }
     rowRead++;
     percent = ((float)(100 * rowRead)) / totalCount;
     System.Windows.Forms.Application.DoEvents();
    }
    range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
    if (dt.Columns.Count > 1)
    {
     range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;
    }
    try
    {
     workbook.Saved = true;
     workbook.SaveCopyAs(fileName);
    }
    catch (Exception ex)
    {
     //lblMsg.Text = "导出文件时出错,文件可能正被打开！/n" + ex.Message;
     MessageBox.Show( "导出文件时出错,文件可能正被打开！/n" + ex.Message );
     return;
    }

    workbooks.Close();
    if (xlApp != null)
    {
     xlApp.Workbooks.Close();
     xlApp.Quit();
     int generation = System.GC.GetGeneration(xlApp);
     System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
     xlApp = null;
     System.GC.Collect(generation);
    }
    GC.Collect();//强行销毁
    #region 强行杀死最近打开的Excel进程
    System.Diagnostics.Process[] excelProc = System.Diagnostics.Process.GetProcessesByName("EXCEL");
    System.DateTime startTime = new DateTime();
    int m, killId = 0;
    for (m = 0; m < excelProc.Length; m++)
    {
     if (startTime < excelProc[m].StartTime)
     {
      startTime = excelProc[m].StartTime;
      killId = m;
     }
    }
    if (excelProc[killId].HasExited == false)
    {
     excelProc[killId].Kill();
    }
    #endregion
    MessageBox.Show( "导出成功!" );
   }
  }
 }
}

 

六、DataTable导出到excel（2）

StringWriter stringWriter = new StringWriter();
HtmlTextWriter htmlWriter = new HtmlTextWriter( stringWriter );
DataGrid excel = new DataGrid();
System.Web.UI.WebControls.TableItemStyle AlternatingStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle headerStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle itemStyle = new TableItemStyle();
AlternatingStyle.BackColor = System.Drawing.Color.LightGray;
headerStyle.BackColor =System.Drawing.Color.LightGray;
headerStyle.Font.Bold = true;
headerStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
itemStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;;

excel.AlternatingItemStyle.MergeWith(AlternatingStyle);
excel.HeaderStyle.MergeWith(headerStyle);
excel.ItemStyle.MergeWith(itemStyle);
excel.GridLines = GridLines.Both;
excel.HeaderStyle.Font.Bold = true;
excel.DataSource = dt.DefaultView;//输出DataTable的内容
excel.DataBind();
excel.RenderControl(htmlWriter);

string filestr = "d://data//"+filePath;  //filePath是文件的路径
int pos = filestr.LastIndexOf( "//");
string file = filestr.Substring(0,pos);
if( !Directory.Exists( file ) )
{
  Directory.CreateDirectory(file);
}
System.IO.StreamWriter sw = new StreamWriter(filestr);
sw.Write(stringWriter.ToString());
sw.Close();

 

七、通过SQL直接导出到Excel数据库

exec master..xp_cmdshell @# bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout c:/test.xls -c -S"soa" -U"sa" -P"sa" @#

注意：参数的大小写，另外这种方法写入数据的时候没有标题。

    关于通过SQL读取EXCEL的方法请参见：http://blog.csdn.net/wonsoft/archive/2008/11/16/3312320.aspx

八、用OleDB 把 DataSet 数据导出到 Excel文件里

//dt为数据源（数据表）
//ExcelFileName 为要导出的Ｅｘｃｌｅ文件
//ModelFile为模板文件，该文件与数据源中的表一致。否则数据会导出失败。
//ModelFile文件里，需要有一张 与 dt.TableName 一致的表，而且字段也要一致。
//注明：如果不用ModelFile的话，可以用一个空白Excel文件，不过，要去掉下面创建表的注释，让OleDb自己创建一个空白表。
public static string TableToExcelFile(DataTable dt,string ExcelFileName,string ModelFile)
{
    File.Copy(ModelFile,ExcelFileName);  //复制一个空文件，提供写入数据用

    if(File.Exists(ExcelFileName)==false)
    {
        return "系统创建临时文件失败，请与系统管理员联系！";
    }

    if(dt == null)
    {
        return "DataTable不能为空";
    }

    int rows = dt.Rows.Count;

    int cols = dt.Columns.Count;
    StringBuilder sb;
    string connString;

    if(rows == 0)
    {
        return "没有数据";
    }

    sb = new StringBuilder();
    connString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+ExcelFileName+";Extended Properties=Excel 8.0;";

    //生成创建表的脚本
    //----sb.Append("DROP TABLE "+dt.TableName);

    /*
    sb.Append("CREATE TABLE ");
    sb.Append(dt.TableName + " ( ");
    for(int i=0;i<cols;i++)
    {
        if(i < cols - 1)
        sb.Append(string.Format("{0} varchar,",dt.Columns[i].ColumnName));
        else
        sb.Append(string.Format("{0} varchar)",dt.Columns[i].ColumnName));
    }
    */

    //return sb.ToString();

    OleDbConnection objConn = new OleDbConnection(connString);
    OleDbCommand objCmd = new OleDbCommand();
    objCmd.Connection = objConn;
    //objCmd.CommandText=sb.ToString();

    try
    {
        objConn.Open();
        //objCmd.ExecuteNonQuery();
    }
    catch(Exception e)
    {
        return "在Excel中创建表失败，错误信息：" + e.Message;
    }

    sb.Remove(0,sb.Length);

    sb.Append("INSERT INTO ");
    sb.Append(dt.TableName + " ( ");

    for(int i=0;i<cols;i++)
    {
        if(i < cols - 1)
            sb.Append(dt.Columns[i].ColumnName + ",");
        else
            sb.Append(dt.Columns[i].ColumnName + ") values (");
    }

    for(int i=0;i<cols;i++)
    {
        if(i < cols - 1)
            sb.Append("@" + dt.Columns[i].ColumnName + ",");
        else
            sb.Append("@" + dt.Columns[i].ColumnName + ")");
    }

    //建立插入动作的Command
    objCmd.CommandText = sb.ToString();
    OleDbParameterCollection param = objCmd.Parameters;

    for(int i=0;i<cols;i++)
    {
        param.Add(new OleDbParameter("@" + dt.Columns[i].ColumnName, OleDbType.VarChar));
    }

    //遍历DataTable将数据插入新建的Excel文件中
    foreach (DataRow row in dt.Rows)
    {
        for (int i=0; i<param.Count; i++)
        {
            param[i].Value = row[i];
        }

        objCmd.ExecuteNonQuery();
    }

    return "数据已成功导入Excel";
}
//   Trackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=754176

 

九、利用OLEDB，以excel为数据库，把dataset中的数据导入到excel文件中

public static void exportToExcelByDataset(string filePath, DataSet ds,XmlNode node)
{
    string sqlstr;

    if(fi.Exists)
    {
         fi.Delete();
         //throw new Exception("文件删除失败");
    }
    else
    {
         fi.Create();
    }

    string mailto:sqlcon=@%22Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended ProPerties=Excel 8.0;";
    OleDbConnection olecon = new OleDbConnection(sqlcon);
    OleDbCommand olecmd = new OleDbCommand();
    olecmd.Connection = olecon;
    olecmd.CommandType = CommandType.Text;

    try
    {
        olecon.Open();

        XmlNode nodec=node.SelectSingleNode("./Method/ShowField");
        int ii = 0;
        sqlstr = "CREATE TABLE sheet1(";
        foreach(XmlNode xnode in nodec.ChildNodes )
        {
           if(ii == nodec.ChildNodes.Count - 1)
           {
               if(xnode.Attributes["type"].Value.ToLower() == "int"||xnode.Attributes["type"].Value.ToLower() == "decimal")
               {
                   sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " number)";
               }
               else
               {
                   sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text)";
               }
               // sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text)";
           }
           else
           {
               if(xnode.Attributes["type"].Value.ToLower() == "int"||xnode.Attributes["type"].Value.ToLower() == "decimal")
               {
                    sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " number,";
               }
               else
               {
                    sqlstr=sqlstr + xnode.Attributes["displayname"].Value + " text,";
               }
           }
           //  sqlstr =sqlstr + xnode.Attributes["displayname"].Value + " text";
           ii++;
       }
       olecmd.CommandText = sqlstr;
       olecmd.ExecuteNonQuery();
       for(int i=0;i<ds.Tables[0].Rows.Count;i++)
       {
           sqlstr = "INSERT INTO sheet1 VALUES(";
           int jj=0;
           foreach(XmlNode inode in nodec.ChildNodes )
           {
                if(jj == nodec.ChildNodes.Count-1)
                {
                    if(inode.Attributes["type"].Value.ToLower() == "int"||inode.Attributes["type"].Value.ToLower() == "decimal")
                    {
                         sqlstr = sqlstr + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString()) + ")" ;
                    }
                    else
                    {
                         sqlstr = sqlstr + "'" + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''")) + "')" ;
                    }
                }
                else
                {
                    if(inode.Attributes["type"].Value.ToLower() == "int"||inode.Attributes["type"].Value.ToLower() == "decimal")
                    {
                         sqlstr = sqlstr + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString()) + "," ;
                    }
                    else
                    {
                         sqlstr = sqlstr + "'" + isnull(ds.Tables[0].Rows[i].ItemArray[jj].ToString().Replace("'","''")) + "'," ;
                    }
                }
                jj++;
           }
           olecmd.CommandText = sqlstr;
           olecmd.ExecuteNonQuery();
        }
        MessageBox.Show(@"Excel文件：" + filePath + " 导出成功！");
    }
    catch(Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
    finally
    {
        olecmd.Dispose();
        olecon.Close();
        olecon.Dispose();
    }
}

// 判断对象为空
private static string isnull(string obj)
{
    if(obj.Length >0)
    {
     return obj;
    }
    else
    {
     return "null";
    }
}