【第十四篇】easyui datagrid導出excel

<a class="btn btn-app" onclick="exportExcel()"><i class="fa fa-edit"></i>導出Excel</a>

貼下面的代碼之前，我想說一下

我的數據是主外鍵關系，有多張表關聯，所以在做數據的時候，發現很多問題，讀取的時候，它會自動讀取所有的數據。

當然這不能滿足我導出之后的要求，我只需要導出我要的字段即可，所以我進行了數據處理。

 //導出Excel
    function exportExcel() {
        var rows = $("#saleGrid").datagrid("getRows");

        for (var i = 0; i < rows.length; i++) {    //進行數據處理
            if (isArray(rows[i].OrganizedId)) {
                rows[i].OrganizedId = rows[i].OrganizedId[0];
            }
            if (isArray(rows[i].CustomerId)) {
                rows[i].CustomerId = rows[i].CustomerId[0];
            }
            if (rows[i].AdvanceDate != null) {
                var unix = rows[i].AdvanceDate.replace("/Date(", "").replace(")/", "");
                var un = unix.substring(0, 10);
                var newDate = new Date();
                newDate.setTime(un * 1000);

                rows[i].AdvanceDate = newDate.toLocaleString();
            }
            if (rows[i].OrderDate != null) {
                var unix = rows[i].OrderDate.replace("/Date(", "").replace(")/", "");
                var un = unix.substring(0, 10);
                var newDate = new Date();
                newDate.setTime(un * 1000);

                rows[i].OrderDate = newDate.toLocaleString();
            }
            if (rows[i].RetainageDate != null) {
                var unix = rows[i].RetainageDate.replace("/Date(", "").replace(")/", "");
                var un = unix.substring(0, 10);
                var newDate = new Date();
                newDate.setTime(un * 1000);

                rows[i].RetainageDate = newDate.toLocaleString();
            }

            //移除不要的字段
            delete rows[i].SaleAtts;
            delete rows[i].SaleOrderId;
            delete rows[i].SaleOrderItems;
            delete rows[i].SaleStatus;
            delete rows[i].UserName;
            delete rows[i].Customer;
            delete rows[i].AddDate;

        }
        var bodyData = JSON.stringify(rows);  //轉成json字符串

        //替換中文標題
        var a = bodyData.replace(/SaleOrderNo/g, "訂單編號").replace(/OrderType/g, "訂單類型").replace(/FromWhere/g, "訂單來源")
       .replace(/OrganizedId/g, "機構").replace(/SaleUser/g, "銷售員").replace(/SaleTc/g, "銷售提成").replace(/OrderDate/g, '訂單日期')
       .replace(/ContractNo/g, "合同編號").replace(/Amount/g, "總額").replace(/Advance/g, "首付款").replace(/AdvanceDate/g, "首付款日期")
       .replace(/PayMethod/g, "支付方式").replace(/Retainage/g, "尾款").replace(/RetainageDate/g, "尾款日期").replace(/InlayPrice/g, "鑲嵌款")
       .replace(/CustManager/g, "客戶經理").replace(/EquityNo/g, "認股書編號").replace(/LogisticsTotal/g, "物流費用")
       .replace(/Remarks/g, "備注").replace(/CompletedStatus/g, "狀態").replace(/CustomerId/g, "終端客戶");

        var postData = {
            data: a
        };

        $.ajax({
            type: "POST",
            url: "ExportExcel",
            data: postData,
            success: function (data) {
                if (data == "1") {
                    layer.msg("操作成功,文件在桌面！", {
                        icon: 6,
                        time: 2000,
                    });
                } else if (data == "-1") {
                    layer.msg("操作失敗！", { icon: 2 });
                }
            }
        });
    }

        /// <summary>
        /// 導出Excel
        /// </summary>
        /// <returns></returns>
        public ActionResult ExportExcel()
        {
            string json = Request.Params["data"];
            try
            {
                DataTable dt = ExcelHelper.JsonToDataTable(json);
                string pathDestop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
                ExcelHelper.GridToExcelByNPOI(dt, pathDestop + "\\" + "銷售訂單-" + DateTime.Now.ToString("yyyy-MM-dd") + "導出" + ".xls");
                return Content("1");
            }
            catch (Exception)
            {
                return Content("-1");
            }
        }

效果圖

導出之后

 

幫助類貼下面

 /// <summary>
    /// 將json轉換為DataTable
    /// </summary>
    /// <param name="strJson">得到的json</param>
    /// <returns></returns>
    public static DataTable JsonToDataTable(string strJson)
    {
        //轉換json格式
        strJson = strJson.Replace(",\"", "*\"").Replace("\":", "\"#").ToString();
        //取出表名   
        var rg = new Regex(@"(?<={)[^:]+(?=:\[)", RegexOptions.IgnoreCase);
        string strName = rg.Match(strJson).Value;
        DataTable tb = null;
        //去除表名   
        strJson = strJson.Substring(strJson.IndexOf("[") + 1);
        strJson = strJson.Substring(0, strJson.IndexOf("]"));

        //獲取數據   
        rg = new Regex(@"(?<={)[^}]+(?=})");
        MatchCollection mc = rg.Matches(strJson);
        for (int i = 0; i < mc.Count; i++)
        {
            string strRow = mc[i].Value;
            string[] strRows = strRow.Split('*');
               
            //創建表   
            if (tb == null)
            {
                tb = new DataTable();
                tb.TableName = strName;
                foreach (string str in strRows)
                {
                    var dc = new DataColumn();
                    string[] strCell = str.Split('#');

                    if (strCell[0].Substring(0, 1) == "\"")
                    {
                        int a = strCell[0].Length;
                        dc.ColumnName = strCell[0].Substring(1, a - 2);
                    }
                    else
                    {
                        dc.ColumnName = strCell[0];
                    }
                    tb.Columns.Add(dc);
                }
                tb.AcceptChanges();
            }

            //增加內容   
            DataRow dr = tb.NewRow();
            for (int r = 0; r < strRows.Length; r++)
            {
                try
                {
                    string a = strRows[r].Split('#')[1].Trim();
                    if (a.Equals("null"))
                    {
                        dr[r] = "";
                    }
                    else
                    {
                        dr[r] = strRows[r].Split('#')[1].Trim().Replace("，", ",").Replace("：", ":").Replace("\"", "");
                    }
                }
                catch (Exception e)
                {
                    
                    throw e;
                }
            }
            tb.Rows.Add(dr);
            tb.AcceptChanges();
        }

        try
        {
            if (tb != null)
            {
                return tb;
            }
            else
            {
                throw new Exception("解析錯誤");
            }
        }
        catch (Exception e)
        {
            
            throw e;
        }
    }

 

在網上找到一個GridToExcelByNPOI   你們將就用用吧

/// <summary>
/// DataTable寫入Excel
/// </summary>
/// <param name="dt"></param>
/// <param name="strExcelFileName"></param>
/// <returns></returns>
public bool GridToExcelByNPOI(DataTable dt, string strExcelFileName)
{
    try
    {
        HSSFWorkbook workbook = new HSSFWorkbook();
        ISheet sheet = workbook.CreateSheet("Sheet1");

        ICellStyle HeadercellStyle = workbook.CreateCellStyle();
        HeadercellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
        HeadercellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
        HeadercellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
        HeadercellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
        HeadercellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
        //字體
        NPOI.SS.UserModel.IFont headerfont = workbook.CreateFont();
        headerfont.Boldweight = (short)FontBoldWeight.Bold;
        HeadercellStyle.SetFont(headerfont);

        //用column name 作為列名
        int icolIndex = 0;
        IRow headerRow = sheet.CreateRow(0);
        foreach (DataColumn item in dt.Columns)
        {
            ICell cell = headerRow.CreateCell(icolIndex);
            cell.SetCellValue(item.ColumnName);
            cell.CellStyle = HeadercellStyle;
            icolIndex++;
        }

        ICellStyle cellStyle = workbook.CreateCellStyle();

        //為避免日期格式被Excel自動替換，所以設定 format 為 『@』 表示一率當成text來看
        cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");
        cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
        cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
        cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
        cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

        NPOI.SS.UserModel.IFont cellfont = workbook.CreateFont();
        cellfont.Boldweight = (short)FontBoldWeight.Normal;
        cellStyle.SetFont(cellfont);

        //建立內容行
        int iRowIndex = 1;
        int iCellIndex = 0;
        foreach (DataRow Rowitem in dt.Rows)
        {
            IRow DataRow = sheet.CreateRow(iRowIndex);
            foreach (DataColumn Colitem in dt.Columns)
            {

                ICell cell = DataRow.CreateCell(iCellIndex);
                cell.SetCellValue(Rowitem[Colitem].ToString());
                cell.CellStyle = cellStyle;
                iCellIndex++;
            }
            iCellIndex = 0;
            iRowIndex++;
        }

        //自適應列寬度
        for (int i = 0; i < icolIndex; i++)
        {
            sheet.AutoSizeColumn(i);
        }

        //寫Excel
        FileStream file = new FileStream(strExcelFileName, FileMode.OpenOrCreate);
        workbook.Write(file);
        file.Flush();
        file.Close();
        return true;
    }
    catch (Exception ex)
    {
        return false;
    }
}


/// <summary>
/// 將excel中的數據導入到DataTable中
/// </summary>
/// <param name="fileName">fileName</param>
/// <param name="sheetName">excel工作薄sheet的名稱</param>
/// <param name="isFirstRowColumn">第一行是否是DataTable的列名</param>
/// <returns>返回的DataTable</returns>
public DataTable ExcelToDataTable(string fileName, string sheetName, bool isFirstRowColumn)
{
    ISheet sheet = null;
    DataTable data = new DataTable();
    IWorkbook workbook = null;
    FileStream fs = null;
    int startRow = 0;
    try
    {
        fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
        if (fileName.IndexOf(".xlsx") > 0) // 2007版本
            workbook = new XSSFWorkbook(fs);
        else if (fileName.IndexOf(".xls") > 0) // 2003版本
            workbook = new HSSFWorkbook(fs);

        if (sheetName != null)
        {
            sheet = workbook.GetSheet(sheetName);
            if (sheet == null) //如果沒有找到指定的sheetName對應的sheet，則嘗試獲取第一個sheet
            {
                sheet = workbook.GetSheetAt(0);
            }
        }
        else
        {
            sheet = workbook.GetSheetAt(0);
        }
        if (sheet != null)
        {
            IRow firstRow = sheet.GetRow(0);
            int cellCount = firstRow.LastCellNum; //一行最后一個cell的編號 即總的列數

            if (isFirstRowColumn)
            {
                for (int i = firstRow.FirstCellNum; i < cellCount; ++i)
                {
                    ICell cell = firstRow.GetCell(i);
                    if (cell != null)
                    {
                        string cellValue = cell.StringCellValue;
                        if (cellValue != null)
                        {
                            DataColumn column = new DataColumn(cellValue);
                            data.Columns.Add(column);
                        }
                    }
                }
                startRow = sheet.FirstRowNum + 1;
            }
            else
            {
                startRow = sheet.FirstRowNum;
            }

            //最后一列的標號
            int rowCount = sheet.LastRowNum;
            for (int i = startRow; i <= rowCount; ++i)
            {
                IRow row = sheet.GetRow(i);
                if (row == null) continue; //沒有數據的行默認是null　　　　　　　

                DataRow dataRow = data.NewRow();
                for (int j = row.FirstCellNum; j < cellCount; ++j)
                {
                    if (row.GetCell(j) != null) //同理，沒有數據的單元格都默認是null
                        dataRow[j] = row.GetCell(j).ToString();
                }
                data.Rows.Add(dataRow);
            }
        }

        return data;
    }
    catch (Exception ex)
    {
        Console.WriteLine("Exception: " + ex.Message);
        return null;
    }
}
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版權聲明：本文為CSDN博主「lbx_15887055073」的原創文章，遵循 CC 4.0 BY-SA 版權協議，轉載請附上原文出處鏈接及本聲明。
原文鏈接：https://blog.csdn.net/lbx_15887055073/article/details/82194414

 

 

 

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轉載請記得說明作者和出處哦-.-
作者：KingDuDu
原文出處：https://www.cnblogs.com/kingdudu/articles/4863980.html

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