我想将网页的数据导出到一个固定格式的Excel表中，应该怎么操作呢？

[boybay]

说白了，就是如何控制数据写入Excel指定的单元格？Excel中已经有固定表，只需要向表中的相关单元格填写数据就行了。
而不需要一股脑将网页所有数据都横七竖八的写到Excel中，谢谢。

[lxj5545911]

ding~

[luckyboy101]

Response.Clear();
Response.Buffer = true;
Response.Charset = "gb2312";
Response.AppendHeader("Content-Disposition", "attachment;filename=users.xls");
Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
Response.Write("<meta http-equiv=Content-Type content=text/html;charset=gb2312>");
this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.GridView1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();

[jiao545214147]

  /// <summary>
        /// 将DataGrid数据导入到Excel
        /// </summary>
        /// <param name="gv">GridView控件</param>
        /// <param name="strFileName">文件名</param>
        /// <returns></returns>
        public static void ImportExcel(System.Web.UI.WebControls.GridView gv, string strFileName)
        {
            System.Web.HttpContext obj = System.Web.HttpContext.Current;
            obj.Response.Clear();
            obj.Response.Buffer = true;
            //obj.Response.Charset="GB2312"; 
            obj.Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(strFileName, System.Text.Encoding.UTF8) + ".xls");
            obj.Response.ContentEncoding = System.Text.Encoding.UTF8;
            obj.Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
            obj.Response.ContentType = "application/vnd.ms-excel";
            System.IO.StringWriter sw = new System.IO.StringWriter();
            System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
            gv.RenderControl(htw);

            obj.Response.Write(sw.ToString());
            obj.Response.End();
        }

[shoushii]

OLEDB数据提供者

[shoushii]

通过ADO.NET

[boybay]

楼上的好像是一股脑把网页所有数据都写入Excel，不是我想要的。

[luckyboy101]

public string DataTableToExcel(DataTable dt,string excelPath)
{
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 = string.Format(ConnectionString,excelPath);

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

for(int i=0;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));
}

using(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;
}

生成插入数据脚本#region 生成插入数据脚本
sb.Remove(0,sb.Length);
sb.Append("INSERT INTO ");
sb.Append(dt.TableName + " ( ");

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

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


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

for(int i=0;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[i].Value = row[i];
}

objCmd.ExecuteNonQuery();
}

return "数据已成功导入Excel";
}//end using
}