427 lines
17 KiB
C#
427 lines
17 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.POIFS.FileSystem;
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using MyCode.Project.Infrastructure.Common;
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using NPOI.SS.Util;
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using System.Linq;
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using System.Text;
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using System.Data;
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using NPOI.XSSF.UserModel;
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using MyCode.Project.Infrastructure.Enumeration;
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namespace MyCode.Project.Infrastructure.Exports
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{
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/// <summary>
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/// 导出Excel配置类
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/// </summary>
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public class ExportExcelSpecial
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{
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#region GetDownloadPath(获取下载路径)
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/// <summary>
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/// 获取下载路径
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/// </summary>
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/// <param name="fileName">文件名</param>
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/// <returns></returns>
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public string GetDownloadPath(string fileName)
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{
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string dirPath = "/download/exceltemp/";
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string absFilePath = FileUtils.GetPhysicalPath(dirPath);
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if (!Directory.Exists(absFilePath))
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{
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Directory.CreateDirectory(absFilePath);
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}
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//string newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_fff");
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//string filePath = Path.Combine(dirPath, fileName + "_" + newFileName + ".xls");
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//return filePath;
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return Path.Combine(dirPath, fileName);
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}
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#endregion
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#region NPIO 把DataTable导出到EXCEL的方法
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/// <summary>
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/// DataTable导出到Excel文件
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/// </summary>
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/// <param name="dtSource">源DataTable</param>
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/// <param name="strHeaderText">表头文本</param>
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/// <param name="headers">需要导出的列的列头</param>
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/// <param name="cellKes">需要导出的对应的列字段</param>
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/// <param name="strFileName">保存位置</param>
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public void Export(DataTable dtSource, string strHeaderText, string[] headers, string[] cellKes, string strFileName)
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{
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// 将需要导出的数据导到excel中并生成文件流
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using (MemoryStream ms = Export(dtSource, strHeaderText, headers, cellKes))
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{
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// 将文件流写入文件
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using (FileStream fs = new FileStream(strFileName, 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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fs.Close();
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}
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}
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}
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/// <summary>
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/// DataTable导出到Excel的MemoryStream
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/// </summary>
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/// <param name="dtSource">源DataTable</param>
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/// <param name="strHeaderText">表头文本</param>
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/// <param name="headers">需要导出的列的列头</param>
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/// <param name="cellKes">需要导出的对应的列字段</param>
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/// <returns></returns>
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private MemoryStream Export(DataTable dtSource, string strHeaderText, string[] headers, string[] cellKes)
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{
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// excel
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//HSSFWorkbook workbook = new HSSFWorkbook();
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XSSFWorkbook workbook = new XSSFWorkbook();
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// 创建一个sheet页，已strHeaderText命名
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ISheet sheet = workbook.CreateSheet(strHeaderText);
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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 = "文件作者信息"; //填加xls文件作者信息
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// //si.ApplicationName = "创建程序信息"; //填加xls文件创建程序信息
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// //si.LastAuthor = "最后保存者信息"; //填加xls文件最后保存者信息
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// //si.Comments = "作者信息"; //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 = DateTime.Now;
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// workbook.SummaryInformation = si;
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//}
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//#endregion
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// 日期的样式
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ICellStyle dateStyle = workbook.CreateCellStyle();
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// 日期的格式化
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IDataFormat format = workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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// 字体样式
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IFont datafont = workbook.CreateFont();
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datafont.FontName = "微软雅黑";
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// 字体大小
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datafont.FontHeightInPoints = 11;
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dateStyle.SetFont(datafont);
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// 边框
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dateStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
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dateStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
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dateStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
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dateStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
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// 其他数据的样式
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ICellStyle cellStyle = workbook.CreateCellStyle();
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// 字体样式
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IFont cellfont = workbook.CreateFont();
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// 字体大小
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cellfont.FontHeightInPoints = 11;
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cellfont.FontName = "宋体";
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cellStyle.SetFont(cellfont);
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// 边框
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cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
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cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
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cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
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cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
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// 总的列数
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int colNum = headers.Length;
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// 每个列的宽度
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int[] arrColWidth = new int[colNum];
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// 初始化列的宽度为列头的长度，已需要显示的列头的名字长度计算
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for (int i = 0; i < headers.Length; i++)
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{
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arrColWidth[i] = Encoding.GetEncoding(936).GetBytes(headers[i]).Length * 2;
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}
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// 循环数据，取每列数据最宽的作为该列的宽度
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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 < cellKes.Length; j++)
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{
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int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][cellKes[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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// 记录生成的行数
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int rowIndex = 0;
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// DataTable中的列信息
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DataColumnCollection columns = dtSource.Columns;
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// 循环所有的行，向sheet页中添加数据
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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 || rowIndex == 0)
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{
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// 如果不是第一行，则创建一个新的sheet页
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if (rowIndex != 0)
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{
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sheet = workbook.CreateSheet();
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}
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#region 表头及样式
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{
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// // 在当前sheet页上创建第一行
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// IRow headerRow = sheet.CreateRow(0);
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// // 该行的高度
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// headerRow.HeightInPoints = 50;
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// // 设置第一列的值
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// headerRow.CreateCell(0).SetCellValue(strHeaderText);
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// // 设置列的样式
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// ICellStyle headStyle = workbook.CreateCellStyle();
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// // 内容居中显示
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// headStyle.Alignment = HorizontalAlignment.Center;
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// // 字体样式
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// IFont font = workbook.CreateFont();
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// font.FontName = "宋体";
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// // 字体大小
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// font.FontHeightInPoints = 20;
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// // 粗体显示
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// font.Boldweight = 700;
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// // 字体颜色
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// font.Color = NPOI.HSSF.Util.HSSFColor.Blue.Index;
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// headStyle.SetFont(font);
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// // 边框
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// headStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
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// headStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
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// headStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
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// headStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
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// // 设置单元格的样式
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// headerRow.GetCell(0).CellStyle = headStyle;
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// headerRow.GetCell(0).CellStyle.SetFont(font);
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// // 设置该行每个单元格的样式
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// for (int i = 1; i < colNum; i++)
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// {
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// headerRow.CreateCell(i);
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// headerRow.GetCell(i).CellStyle = headStyle;
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// headerRow.GetCell(i).CellStyle.SetFont(font);
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// }
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// // 合并单元格
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// sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, colNum - 1));
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}
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#endregion
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#region 列头及样式
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{
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// 创建第二行
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IRow headerRow = sheet.CreateRow(0);
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// 该行的高度
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headerRow.HeightInPoints = 28;
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// 列的样式
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ICellStyle headStyle = workbook.CreateCellStyle();
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// 单元格内容居中显示
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headStyle.Alignment = HorizontalAlignment.Center;
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// 字体样式
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IFont font = workbook.CreateFont();
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font.FontName = "宋体";
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// 字体大小
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font.FontHeightInPoints = 11;
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// 粗体
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font.Boldweight = 700;
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// 字体颜色
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font.Color = NPOI.HSSF.Util.HSSFColor.Black.Index;
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headStyle.SetFont(font);
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// 边框
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headStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
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headStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
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headStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
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headStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
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// 设置每列的样式和值
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for (int i = 0; i < headers.Length; i++)
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{
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headerRow.CreateCell(i).SetCellValue(headers[i]);
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headerRow.GetCell(i).CellStyle = headStyle;
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headerRow.GetCell(i).CellStyle.SetFont(font);
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//设置列宽
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if (arrColWidth[i] > 255)
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{
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arrColWidth[i] = 254;
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}
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else
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{
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sheet.SetColumnWidth(i, (arrColWidth[i] + 1) * 256);
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}
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}
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}
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#endregion
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rowIndex = 1;
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}
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#endregion
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#region 填充内容
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// 创建新的一行
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IRow dataRow = sheet.CreateRow(rowIndex);
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// 该行的高度
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dataRow.HeightInPoints = 23;
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// 循环需要写入的每列数据
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for (int i = 0; i < cellKes.Length; i++)
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{
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// 创建列
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ICell newCell = dataRow.CreateCell(i);
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// 获取DataTable中该列对象
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DataColumn column = columns[cellKes[i]];
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// 该列的值
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string drValue = row[column].ToString();
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// 根据值得类型分别处理之后赋值
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switch (column.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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newCell.CellStyle = cellStyle;
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break;
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case "System.DateTime"://日期类型
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DateTime dateV;
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DateTime.TryParse(drValue, out dateV);
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newCell.SetCellValue(dateV);
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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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newCell.CellStyle = cellStyle;
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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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newCell.CellStyle = cellStyle;
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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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newCell.CellStyle = cellStyle;
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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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newCell.CellStyle = cellStyle;
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break;
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default:
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newCell.SetCellValue("");
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newCell.CellStyle = cellStyle;
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break;
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}
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newCell.CellStyle.SetFont(cellfont);
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}
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#endregion
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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
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#region 返回下载路径
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/// <summary>
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///
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/// </summary>
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/// <param name="reportType"></param>
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/// <param name="dt"></param>
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/// <returns></returns>
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public string GetFilePath(ReportType reportType, DataTable dt)
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{
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List<string> arry = new List<string>();
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foreach (DataColumn Columns in dt.Columns)
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{
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arry.Add(Columns.ColumnName);
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}
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var name = EnumHelper.GetDescription(reportType);
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//execl特殊字符处理
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name = RegexHelper.ToExcelSheetName(name);
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string fileName = name + "_" + DateTime.Now.ToString("yyyyMMddHHmmss_fff") + ".xls";
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var filePath = GetDownloadPath(fileName);
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string absFilePath = FileUtils.GetPhysicalPath(filePath);
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Export(dt, name, arry.ToArray(), arry.ToArray(), absFilePath);
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return filePath;
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}
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#endregion
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#region 返回下载路径
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/// <summary>
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///
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/// </summary>
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/// <param name="reportType"></param>
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/// <param name="dt"></param>
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/// <param name="name"></param>
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/// <returns></returns>
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public string GetFilePathCustomName(ReportType reportType, DataTable dt, string name="")
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{
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List<string> arry = new List<string>();
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foreach (DataColumn Columns in dt.Columns)
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{
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arry.Add(Columns.ColumnName);
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}
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if (string.IsNullOrWhiteSpace(name)) { name = EnumHelper.GetDescription(reportType); }
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//execl特殊字符处理
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name = RegexHelper.ToExcelSheetName(name);
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string fileName = name + "_" + DateTime.Now.ToString("yyyyMMddHHmmss_fff") + ".xls";
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var filePath = GetDownloadPath(fileName);
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string absFilePath = FileUtils.GetPhysicalPath(filePath);
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Export(dt, name, arry.ToArray(), arry.ToArray(), absFilePath);
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return filePath;
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}
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#endregion
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}
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}
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