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641 lines
17 KiB
641 lines
17 KiB
using NPOI.HPSF;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.XSSF.UserModel;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Drawing;
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using System.IO;
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using System.Text;
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namespace learun.util
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{
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/// <summary>
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/// 版 本 EasyCode EC管理后台
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/// Copyright (c) 2019-present EC管理有限公司
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/// 创建人：tobin
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/// 日 期：2019.09.24
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/// 描 述：NPOI Excel DataTable操作类 application/ms-excel application/vnd-excel
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/// </summary>
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public class ExcelHelper
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{
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#region DataTable导出到Excel文件excelConfig中FileName设置为全路径
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/// <summary>
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/// DataTable导出到Excel文件 Export()
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/// </summary>
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/// <param name="dtSource">DataTable数据源</param>
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/// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
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public static void ExcelExport(DataTable dtSource, ExcelConfig excelConfig)
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{
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using (MemoryStream ms = ExportMemoryStream(dtSource, excelConfig))
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{
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using (FileStream fs = new FileStream(excelConfig.FileName, FileMode.Create, FileAccess.Write))
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{
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byte[] data = ms.ToArray();
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fs.Write(data, 0, data.Length);
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fs.Flush();
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}
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}
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}
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#endregion DataTable导出到Excel文件excelConfig中FileName设置为全路径
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#region DataTable导出到Excel的MemoryStream
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/// <summary>
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/// DataTable导出到Excel的MemoryStream Export()
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/// </summary>
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/// <param name="dtSource">DataTable数据源</param>
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/// <param name="excelConfig">导出设置包含文件名、标题、列设置</param>
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public static MemoryStream ExportMemoryStream(DataTable dtSource, ExcelConfig excelConfig)
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{
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//int colint = 0;
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//for (int i = 0; i < dtSource.Columns.Count;)
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//{
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// DataColumn column = dtSource.Columns[i];
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// if (excelConfig.ColumnEntity[colint].Column != column.ColumnName)
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// {
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// dtSource.Columns.Remove(column.ColumnName);
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// }
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// else
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// {
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// i++;
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// if (colint < excelConfig.ColumnEntity.Count - 1)
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// {
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// colint++;
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// }
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// }
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//}
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DataTable dt = dtSource.Clone();
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var columns = dt.Columns;
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foreach (DataColumn column in columns)
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{
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bool v = excelConfig.ColumnEntity.Exists(t => t.Column == column.ColumnName);
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if (!v)
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{
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dtSource.Columns.Remove(column.ColumnName);
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}
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}
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HSSFWorkbook workbook = new HSSFWorkbook();
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ISheet sheet = workbook.CreateSheet();
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#region 右击文件 属性信息
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{
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DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
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dsi.Company = "NPOI";
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workbook.DocumentSummaryInformation = dsi;
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SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
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si.Author = "learun"; //填加xls文件作者信息
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si.ApplicationName = "信息"; //填加xls文件创建程序信息
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si.LastAuthor = "learun"; //填加xls文件最后保存者信息
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si.Comments = "learun"; //填加xls文件作者信息
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si.Title = "标题信息"; //填加xls文件标题信息
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si.Subject = "主题信息";//填加文件主题信息
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si.CreateDateTime = System.DateTime.Now;
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workbook.SummaryInformation = si;
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}
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#endregion 右击文件 属性信息
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#region 设置标题样式
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ICellStyle headStyle = workbook.CreateCellStyle();
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int[] arrColWidth = new int[dtSource.Columns.Count];
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string[] arrColName = new string[dtSource.Columns.Count];//列名
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ICellStyle[] arryColumStyle = new ICellStyle[dtSource.Columns.Count];//样式表
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headStyle.Alignment = HorizontalAlignment.Center; // ------------------
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if (excelConfig.Background != new Color())
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{
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if (excelConfig.Background != new Color())
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{
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headStyle.FillPattern = FillPattern.SolidForeground;
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headStyle.FillForegroundColor = GetXLColour(workbook, excelConfig.Background);
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}
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}
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IFont font = workbook.CreateFont();
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font.FontHeightInPoints = excelConfig.TitlePoint;
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if (excelConfig.ForeColor != new Color())
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{
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font.Color = GetXLColour(workbook, excelConfig.ForeColor);
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}
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font.IsBold = true;
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headStyle.SetFont(font);
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#endregion 设置标题样式
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#region 列头及样式
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ICellStyle cHeadStyle = workbook.CreateCellStyle();
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cHeadStyle.Alignment = HorizontalAlignment.Center; // ------------------
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IFont cfont = workbook.CreateFont();
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cfont.FontHeightInPoints = excelConfig.HeadPoint;
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cHeadStyle.SetFont(cfont);
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#endregion 列头及样式
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#region 设置内容单元格样式
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foreach (DataColumn item in dtSource.Columns)
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{
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ICellStyle columnStyle = workbook.CreateCellStyle();
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columnStyle.Alignment = HorizontalAlignment.Center;
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arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length;
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arrColName[item.Ordinal] = item.ColumnName.ToString();
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if (excelConfig.ColumnEntity != null)
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{
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ColumnModel columnentity = excelConfig.ColumnEntity.Find(t => t.Column == item.ColumnName);
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if (columnentity != null)
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{
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arrColName[item.Ordinal] = columnentity.ExcelColumn;
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if (columnentity.Width != 0)
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{
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arrColWidth[item.Ordinal] = columnentity.Width;
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}
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if (columnentity.Background != new Color())
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{
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if (columnentity.Background != new Color())
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{
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columnStyle.FillPattern = FillPattern.SolidForeground;
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columnStyle.FillForegroundColor = GetXLColour(workbook, columnentity.Background);
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}
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}
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if (columnentity.Font != null || columnentity.Point != 0 || columnentity.ForeColor != new Color())
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{
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IFont columnFont = workbook.CreateFont();
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columnFont.FontHeightInPoints = 10;
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if (columnentity.Font != null)
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{
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columnFont.FontName = columnentity.Font;
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}
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if (columnentity.Point != 0)
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{
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columnFont.FontHeightInPoints = columnentity.Point;
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}
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if (columnentity.ForeColor != new Color())
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{
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columnFont.Color = GetXLColour(workbook, columnentity.ForeColor);
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}
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columnStyle.SetFont(font);
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}
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columnStyle.Alignment = getAlignment(columnentity.Alignment);
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}
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}
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arryColumStyle[item.Ordinal] = columnStyle;
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}
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if (excelConfig.IsAllSizeColumn)
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{
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#region 根据列中最长列的长度取得列宽
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for (int i = 0; i < dtSource.Rows.Count; i++)
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{
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for (int j = 0; j < dtSource.Columns.Count; j++)
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{
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if (arrColWidth[j] != 0)
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{
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int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length;
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if (intTemp > arrColWidth[j])
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{
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arrColWidth[j] = intTemp;
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}
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}
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}
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}
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#endregion 根据列中最长列的长度取得列宽
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}
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#endregion 设置内容单元格样式
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int rowIndex = 0;
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#region 表头及样式
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if (excelConfig.Title != null)
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{
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IRow headerRow = sheet.CreateRow(rowIndex);
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rowIndex++;
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if (excelConfig.TitleHeight != 0)
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{
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headerRow.Height = (short)(excelConfig.TitleHeight * 20);
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}
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headerRow.HeightInPoints = 25;
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headerRow.CreateCell(0).SetCellValue(excelConfig.Title);
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headerRow.GetCell(0).CellStyle = headStyle;
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sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); // ------------------
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}
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#endregion 表头及样式
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#region 列头及样式
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{
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IRow headerRow = sheet.CreateRow(rowIndex);
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rowIndex++;
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#region 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
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foreach (DataColumn column in dtSource.Columns)
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{
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headerRow.CreateCell(column.Ordinal).SetCellValue(arrColName[column.Ordinal]);
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headerRow.GetCell(column.Ordinal).CellStyle = cHeadStyle;
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//设置列宽
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//sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
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int colWidth = (arrColWidth[column.Ordinal] + 1) * 256;
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if (colWidth < 255 * 256)
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{
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sheet.SetColumnWidth(column.Ordinal, colWidth < 3000 ? 3000 : colWidth);
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}
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else
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{
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sheet.SetColumnWidth(column.Ordinal, 6000);
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}
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}
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#endregion 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
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}
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#endregion 列头及样式
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ICellStyle dateStyle = workbook.CreateCellStyle();
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IDataFormat format = workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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foreach (DataRow row in dtSource.Rows)
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{
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#region 新建表，填充表头，填充列头，样式
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if (rowIndex == 65535)
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{
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sheet = workbook.CreateSheet();
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rowIndex = 0;
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#region 表头及样式
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{
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if (excelConfig.Title != null)
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{
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IRow headerRow = sheet.CreateRow(rowIndex);
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rowIndex++;
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if (excelConfig.TitleHeight != 0)
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{
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headerRow.Height = (short)(excelConfig.TitleHeight * 20);
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}
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headerRow.HeightInPoints = 25;
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headerRow.CreateCell(0).SetCellValue(excelConfig.Title);
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headerRow.GetCell(0).CellStyle = headStyle;
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sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); // ------------------
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}
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}
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#endregion 表头及样式
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#region 列头及样式
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{
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IRow headerRow = sheet.CreateRow(rowIndex);
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rowIndex++;
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#region 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
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foreach (DataColumn column in dtSource.Columns)
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{
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headerRow.CreateCell(column.Ordinal).SetCellValue(arrColName[column.Ordinal]);
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headerRow.GetCell(column.Ordinal).CellStyle = cHeadStyle;
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//设置列宽
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sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
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}
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#endregion 如果设置了列标题就按列标题定义列头，没定义直接按字段名输出
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}
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#endregion 列头及样式
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}
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#endregion 新建表，填充表头，填充列头，样式
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#region 填充内容
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IRow dataRow = sheet.CreateRow(rowIndex);
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foreach (DataColumn column in dtSource.Columns)
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{
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ICell newCell = dataRow.CreateCell(column.Ordinal);
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newCell.CellStyle = arryColumStyle[column.Ordinal];
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string drValue = row[column].ToString();
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SetCell(newCell, dateStyle, column.DataType, drValue);
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}
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#endregion 填充内容
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rowIndex++;
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}
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MemoryStream ms = new MemoryStream();
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workbook.Write(ms);
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ms.Flush();
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ms.Position = 0;
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return ms;
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}
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#endregion DataTable导出到Excel的MemoryStream
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#region ListExcel导出(加载模板)
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/// <summary>
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/// List根据模板导出ExcelMemoryStream
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/// </summary>
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/// <param name="list"></param>
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/// <param name="templdateName"></param>
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public static MemoryStream ExportListByTempale(List<TemplateDataModel> list, string templdateName)
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{
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try
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{
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FileStream fileStream = new FileStream(templdateName, FileMode.Open, FileAccess.Read);
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ISheet sheet = null;
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if (templdateName.IndexOf(".xlsx") == -1)//2003
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{
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HSSFWorkbook hssfworkbook = new HSSFWorkbook(fileStream);
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sheet = hssfworkbook.GetSheetAt(0);
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SetPurchaseOrder(sheet, list);
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sheet.ForceFormulaRecalculation = true;
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using (MemoryStream ms = new MemoryStream())
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{
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hssfworkbook.Write(ms);
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ms.Flush();
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return ms;
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}
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}
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else//2007
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{
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XSSFWorkbook xssfworkbook = new XSSFWorkbook(fileStream);
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sheet = xssfworkbook.GetSheetAt(0);
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SetPurchaseOrder(sheet, list);
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sheet.ForceFormulaRecalculation = true;
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using (MemoryStream ms = new MemoryStream())
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{
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xssfworkbook.Write(ms);
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ms.Flush();
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return ms;
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}
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}
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}
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catch (Exception)
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{
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throw;
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}
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}
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/// <summary>
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/// 赋值单元格
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/// </summary>
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/// <param name="sheet"></param>
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/// <param name="list"></param>
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private static void SetPurchaseOrder(ISheet sheet, List<TemplateDataModel> list)
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{
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try
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{
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foreach (var item in list)
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{
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IRow row = null;
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ICell cell = null;
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row = sheet.GetRow(item.row);
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if (row == null)
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{
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row = sheet.CreateRow(item.row);
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}
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cell = row.GetCell(item.cell);
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if (cell == null)
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{
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cell = row.CreateCell(item.cell);
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}
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cell.SetCellValue(item.value);
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}
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}
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catch (Exception)
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{
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throw;
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}
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}
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#endregion ListExcel导出(加载模板)
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#region 设置表格内容
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private static void SetCell(ICell newCell, ICellStyle dateStyle, Type dataType, string drValue)
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{
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switch (dataType.ToString())
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{
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case "System.String"://字符串类型
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newCell.SetCellValue(drValue);
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break;
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case "System.DateTime"://日期类型
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System.DateTime dateV;
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if (System.DateTime.TryParse(drValue, out dateV))
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{
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newCell.SetCellValue(dateV);
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}
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else
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{
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newCell.SetCellValue("");
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}
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newCell.CellStyle = dateStyle;//格式化显示
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break;
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case "System.Boolean"://布尔型
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bool boolV = false;
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bool.TryParse(drValue, out boolV);
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newCell.SetCellValue(boolV);
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break;
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case "System.Int16"://整型
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case "System.Int32":
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case "System.Int64":
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case "System.Byte":
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int intV = 0;
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int.TryParse(drValue, out intV);
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newCell.SetCellValue(intV);
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break;
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case "System.Decimal"://浮点型
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case "System.Double":
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double doubV = 0;
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double.TryParse(drValue, out doubV);
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newCell.SetCellValue(doubV);
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break;
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case "System.DBNull"://空值处理
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newCell.SetCellValue("");
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break;
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default:
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newCell.SetCellValue("");
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break;
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}
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}
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#endregion 设置表格内容
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#region 从Excel导入
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/// <summary>
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/// 读取excel ,默认第一行为标头
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/// </summary>
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/// <param name="strFileName">excel文档路径</param>
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/// <returns></returns>
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public static DataTable ExcelImport(string strFileName)
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{
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DataTable dt = new DataTable();
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ISheet sheet = null;
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using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
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{
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if (strFileName.IndexOf(".xlsx") == -1)//2003
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{
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HSSFWorkbook hssfworkbook = new HSSFWorkbook(file);
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sheet = hssfworkbook.GetSheetAt(0);
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}
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else//2007
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{
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XSSFWorkbook xssfworkbook = new XSSFWorkbook(file);
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sheet = xssfworkbook.GetSheetAt(0);
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}
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}
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System.Collections.IEnumerator rows = sheet.GetRowEnumerator();
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IRow headerRow = sheet.GetRow(0);
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int cellCount = headerRow.LastCellNum;
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for (int j = 0; j < cellCount; j++)
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{
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ICell cell = headerRow.GetCell(j);
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dt.Columns.Add(cell.ToString());
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}
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for (int i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++)
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{
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IRow row = sheet.GetRow(i);
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DataRow dataRow = dt.NewRow();
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for (int j = row.FirstCellNum; j < cellCount; j++)
|
|
{
|
|
if (row.GetCell(j) != null)
|
|
dataRow[j] = row.GetCell(j).ToString();
|
|
}
|
|
|
|
dt.Rows.Add(dataRow);
|
|
}
|
|
return dt;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 读取excel ,默认第一行为标头
|
|
/// </summary>
|
|
/// <param name="fileStream">文件数据流</param>
|
|
/// <param name="flieType">文件类型</param>
|
|
/// <returns></returns>
|
|
public static DataTable ExcelImport(Stream fileStream, string flieType)
|
|
{
|
|
DataTable dt = new DataTable();
|
|
ISheet sheet = null;
|
|
if (flieType == ".xls")
|
|
{
|
|
HSSFWorkbook hssfworkbook = new HSSFWorkbook(fileStream);
|
|
sheet = hssfworkbook.GetSheetAt(0);
|
|
}
|
|
else
|
|
{
|
|
XSSFWorkbook xssfworkbook = new XSSFWorkbook(fileStream);
|
|
sheet = xssfworkbook.GetSheetAt(0);
|
|
}
|
|
System.Collections.IEnumerator rows = sheet.GetRowEnumerator();
|
|
IRow headerRow = sheet.GetRow(0);
|
|
int cellCount = headerRow.LastCellNum;
|
|
for (int j = 0; j < cellCount; j++)
|
|
{
|
|
ICell cell = headerRow.GetCell(j);
|
|
dt.Columns.Add(cell.ToString());
|
|
}
|
|
for (int i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++)
|
|
{
|
|
IRow row = sheet.GetRow(i);
|
|
DataRow dataRow = dt.NewRow();
|
|
|
|
for (int j = row.FirstCellNum; j < cellCount; j++)
|
|
{
|
|
if (row.GetCell(j) != null)
|
|
dataRow[j] = row.GetCell(j).ToString();
|
|
}
|
|
|
|
dt.Rows.Add(dataRow);
|
|
}
|
|
return dt;
|
|
}
|
|
|
|
#endregion 从Excel导入
|
|
|
|
#region RGB颜色转NPOI颜色
|
|
|
|
private static short GetXLColour(HSSFWorkbook workbook, Color SystemColour)
|
|
{
|
|
short s = 0;
|
|
HSSFPalette XlPalette = workbook.GetCustomPalette();
|
|
NPOI.HSSF.Util.HSSFColor XlColour = XlPalette.FindColor(SystemColour.R, SystemColour.G, SystemColour.B);
|
|
if (XlColour == null)
|
|
{
|
|
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 255)
|
|
{
|
|
XlColour = XlPalette.FindSimilarColor(SystemColour.R, SystemColour.G, SystemColour.B);
|
|
s = XlColour.Indexed;
|
|
}
|
|
}
|
|
else
|
|
s = XlColour.Indexed;
|
|
return s;
|
|
}
|
|
|
|
#endregion RGB颜色转NPOI颜色
|
|
|
|
#region 设置列的对齐方式
|
|
|
|
/// <summary>
|
|
/// 设置对齐方式
|
|
/// </summary>
|
|
/// <param name="style"></param>
|
|
/// <returns></returns>
|
|
private static HorizontalAlignment getAlignment(string style)
|
|
{
|
|
switch (style)
|
|
{
|
|
case "center":
|
|
return HorizontalAlignment.Center;
|
|
|
|
case "left":
|
|
return HorizontalAlignment.Left;
|
|
|
|
case "right":
|
|
return HorizontalAlignment.Right;
|
|
|
|
case "fill":
|
|
return HorizontalAlignment.Fill;
|
|
|
|
case "justify":
|
|
return HorizontalAlignment.Justify;
|
|
|
|
case "centerselection":
|
|
return HorizontalAlignment.CenterSelection;
|
|
|
|
case "distributed":
|
|
return HorizontalAlignment.Distributed;
|
|
}
|
|
return NPOI.SS.UserModel.HorizontalAlignment.General;
|
|
}
|
|
|
|
#endregion 设置列的对齐方式
|
|
}
|
|
}
|