?? #region 導(dǎo)出代碼
??????? /// <summary>
??????? /// 導(dǎo)出代碼
??????? /// </summary>
??????? public? void Export()
??????? {
??????????? NPOI.HSSF.UserModel.HSSFWorkbook workbook = new NPOI.HSSF.UserModel.HSSFWorkbook();
??????????? NPOI.SS.UserModel.ISheet sheet1 = workbook.CreateSheet("BOM詳情");
??????????? //給sheet1添加第一行的頭部標題
??????????? NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
??????????? row1.CreateCell(0).SetCellValue("序號");
??????????? row1.CreateCell(1).SetCellValue("用戶名");
??????????? row1.CreateCell(2).SetCellValue("編號");
?????????? // DataTable dt = ExecuteStoredPro("Store_Query", "teacher", "id,tname,TCode", "id>1");//獲取數(shù)據(jù)表
??????????? DataSet ds = Common.getds("select * from teacher");
??????????? DataTable dt = ds.Tables[0];
??????????? for (int i = 0; i < dt.Rows.Count; i++)
??????????? {
??????????????? NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + 1);
??????????????? rowtemp.CreateCell(0).SetCellValue(dt.Rows[i]["id"].ToString());
??????????????? rowtemp.CreateCell(1).SetCellValue(dt.Rows[i]["tname"].ToString());
??????????????? rowtemp.CreateCell(2).SetCellValue(dt.Rows[i]["TCode"].ToString());
??????????? }
??????????? //寫入到客戶端
??????????? string path = "/FileRoot/temp/";
??????????? string fileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xls";
??????????? path += fileName;
??????????? System.IO.FileStream file = new System.IO.FileStream(HttpContext.Current.Server.MapPath(path), System.IO.FileMode.Create);
??????????? workbook.Write(file);
??????????? //關(guān)閉文件，釋放對象
??????????? file.Close();
??????????? string filePath = Server.MapPath(path);//路徑
??????????? Response.Redirect("downExcel.aspx?filePath=" + filePath + "&fileName=" + DateTime.Now.ToString("yyyyMMddHHmmssfff")+".xls");
??????? }
??????? #endregion

?

?

? public static string conn = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["connStr"].ToString();//獲取配置數(shù)據(jù)庫字符串
??????? #region 獲取dataset
??????? /// <summary>
??????? /// 獲取dataset
??????? /// </summary>
??????? /// <param name="sqlstr">傳入的sql語句</param>
??????? /// <returns></returns>
??????? public static DataSet getds(string sqlstr)
??????? {
??????????? DataSet ds = null;
??????????? using (MySqlConnection conn = new MySqlConnection(Common.conn))
??????????? {
??????????????? conn.Open();
??????????????? using (MySqlCommand cmd = new MySqlCommand(sqlstr, conn))
??????????????? {
??????????????????? MySqlDataAdapter adapter = new MySqlDataAdapter(cmd);
??????????????????? ds = new DataSet();
??????????????????? adapter.Fill(ds);

??????????????? }
??????????? }
??????????? return ds;
??????? }
??????? #endregion

轉(zhuǎn)載于:https://www.cnblogs.com/wugh8726254/p/8302017.html

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