using Microsoft.AspNetCore.Hosting;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.SS.Util;
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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.ComponentModel;
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using System.Data;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace VueWebCoreApi.Tools
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{
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public static class DownLoad
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{
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///<summary>
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/// 下载
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///</summary>
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///<typeparam name="T"></typeparam>
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///<param name="data"></param>
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///<param name="map">所需要的列</param>
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///<param name="filenName">文件名字</param>
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///<returns></returns>
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public static string Download<T>(this IList<T> data, Dictionary<string, string> map, string filenName)
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{
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var filename = filenName + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";
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string fileip = AppSetting.GetAppSetting("FileIP");
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var filepath = CoreHttpContext.MapPath("/newxls/");
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var path = filepath + filename;
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if (!Directory.Exists(filepath))
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{
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Directory.CreateDirectory(filepath);
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}
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var properties = TypeDescriptor.GetProperties(typeof(T));
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var dt = new DataTable();
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var list = map.Values;
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//显示表结构
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foreach (var row in list)
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{
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dt.Columns.Add(row);
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}
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//取值
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foreach (var item in data)
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{
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var i = 0;
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var values = new object[dt.Columns.Count];
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foreach (var content in map)
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{
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var property = properties[content.Key];
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if (property != null)
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{
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var value = property.GetValue(item);
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if (property.PropertyType == typeof(decimal))
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{
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if ((decimal)value == 0)
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{
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value = 0;
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}
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else
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{
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value = ((decimal)value).ToString("0.00");
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}
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}
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values[i] = value;
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if (Convert.ToString(content).Contains("率"))
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{
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values[i] = value + "%";
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}
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}
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else
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{
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values[i] = DBNull.Value;
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}
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i++;
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}
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dt.Rows.Add(values);
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}
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var b = DALSkillCondition.ResultExcel(path, dt);
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if (b)
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{
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var url = fileip + "/apis/newxls/" + filename;
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return url;
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}
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var messge = filename + "下载失败";
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return messge;
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}
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/// <summary>
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/// Datas the set to excel.
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/// </summary>
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/// <param name="ds">The ds.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
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public static string DataSetToExcel(DataSet ds, string filenName)
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{
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try
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{
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string fileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xlsx";
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string fileip = AppSetting.GetAppSetting("FileIP");
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string filePath = CoreHttpContext.MapPath("/newxls/");
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Directory.CreateDirectory(filePath);
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string Path = filePath + fileName;
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FileStream fs = null;
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XSSFWorkbook workbook = new XSSFWorkbook();
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for (int i = 0; i < ds.Tables.Count; i++)
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{
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XSSFSheet sheet = (XSSFSheet)workbook.CreateSheet(ds.Tables[i].TableName);
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XSSFCellStyle dateStyle = (XSSFCellStyle)workbook.CreateCellStyle();
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XSSFDataFormat format = (XSSFDataFormat)workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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int rowIndex = 0;
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#region 新建表，填充表头，填充列头，样式
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if (rowIndex == 0)
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{
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#region 列头及样式
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XSSFRow headerRow = (XSSFRow)sheet.CreateRow(0);
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XSSFCellStyle headStyle = (XSSFCellStyle)workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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XSSFFont font = (XSSFFont)workbook.CreateFont();
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font.FontName = "微软雅黑";
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font.FontHeightInPoints = 12; //字体大小
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font.Boldweight = 700;//字体加粗
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headStyle.SetFont(font);
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//自定义表头
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for (var j = 0; j < ds.Tables[i].Columns.Count; j++)
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{
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sheet.SetColumnWidth(j, 30 * 256);//
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//sheet.AutoSizeColumn(j); //自适应宽度
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headerRow.CreateCell(j).SetCellValue(ds.Tables[i].Columns[j].ColumnName);
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headerRow.GetCell(j).CellStyle = headStyle;
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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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ICellStyle cellstyle = workbook.CreateCellStyle();
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cellstyle.VerticalAlignment = VerticalAlignment.Center;
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cellstyle.Alignment = HorizontalAlignment.Center;
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foreach (DataRow row in ds.Tables[i].Rows)
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{
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XSSFRow dataRow = (XSSFRow)sheet.CreateRow(rowIndex);
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#region 填充内容
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foreach (DataColumn column in ds.Tables[i].Columns)
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{
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XSSFCell newCell = (XSSFCell)dataRow.CreateCell(column.Ordinal);
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string type = row[column].GetType().FullName.ToString();
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newCell.SetCellValue(GetValue(row[column].ToString(), type));
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newCell.CellStyle = cellstyle;
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}
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#endregion
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rowIndex++;
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}
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}
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using (fs = File.OpenWrite(Path))
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{
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workbook.Write(fs);
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var url = fileip + "/newxls/" + fileName;
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return url;
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}
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}
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catch (Exception e)
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{
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return e.Message;
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}
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}
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/// <summary>
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/// Datas the set to excel.
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/// </summary>
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/// <param name="ds">The ds.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
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public static string DataTableToExcel(DataTable ds, string filenName)
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{
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try
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{
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string fileName = filenName + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xlsx";
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string fileip = AppSetting.GetAppSetting("FileIP");
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string filePath = CoreHttpContext.MapPath("wwwroot/newxls/");
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Directory.CreateDirectory(filePath);
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string Path = filePath + fileName;
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FileStream fs = null;
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XSSFWorkbook workbook = new XSSFWorkbook();
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XSSFSheet sheet = (XSSFSheet)workbook.CreateSheet(ds.TableName);
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XSSFCellStyle dateStyle = (XSSFCellStyle)workbook.CreateCellStyle();
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XSSFDataFormat format = (XSSFDataFormat)workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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int rowIndex = 0;
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#region 新建表，填充表头，填充列头，样式
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if (rowIndex == 0)
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{
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#region 列头及样式
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XSSFRow headerRow = (XSSFRow)sheet.CreateRow(0);
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XSSFCellStyle headStyle = (XSSFCellStyle)workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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XSSFFont font = (XSSFFont)workbook.CreateFont();
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font.FontName = "微软雅黑";
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font.FontHeightInPoints = 12; //字体大小
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font.Boldweight = 700;//字体加粗
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headStyle.SetFont(font);
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//自定义表头
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for (var j = 0; j < ds.Columns.Count; j++)
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{
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sheet.SetColumnWidth(j, 30 * 256);//
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//sheet.AutoSizeColumn(j); //自适应宽度
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headerRow.CreateCell(j).SetCellValue(ds.Columns[j].ColumnName);
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headerRow.GetCell(j).CellStyle = headStyle;
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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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ICellStyle cellstyle = workbook.CreateCellStyle();
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cellstyle.VerticalAlignment = VerticalAlignment.Center;
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cellstyle.Alignment = HorizontalAlignment.Center;
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foreach (DataRow row in ds.Rows)
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{
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XSSFRow dataRow = (XSSFRow)sheet.CreateRow(rowIndex);
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#region 填充内容
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foreach (DataColumn column in ds.Columns)
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{
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XSSFCell newCell = (XSSFCell)dataRow.CreateCell(column.Ordinal);
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string type = row[column].GetType().FullName.ToString();
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newCell.SetCellValue(GetValue(row[column].ToString(), type));
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newCell.CellStyle = cellstyle;
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}
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#endregion
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rowIndex++;
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}
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using (fs = File.OpenWrite(Path))
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{
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workbook.Write(fs);
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var url = fileip + "/newxls/" + fileName;
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return url;
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}
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}
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catch (Exception e)
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{
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return e.Message;
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}
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}
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/// <summary>
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/// Gets the value.
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/// </summary>
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/// <param name="cellValue">The cell value.</param>
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/// <param name="type">The type.</param>
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/// <returns>System.String.</returns>
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private static string GetValue(string cellValue, string type)
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{
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object value = string.Empty;
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switch (type)
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{
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case "System.String"://字符串类型
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value = cellValue;
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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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System.DateTime.TryParse(cellValue, out dateV);
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value = dateV;
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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(cellValue, out boolV);
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value = 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(cellValue, out intV);
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value = 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(cellValue, out doubV);
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value = doubV;
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break;
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case "System.DBNull"://空值处理
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value = string.Empty;
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break;
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default:
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value = string.Empty;
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break;
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}
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return value.ToString();
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}
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/// <summary>
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/// Datatable生成Excel表格并返回路径
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/// </summary>
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/// <param name="m_DataTable">Datatable</param>
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/// <param name="s_FileName">文件名</param>
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/// <returns></returns>
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public static string DataToExcel(System.Data.DataTable m_DataTable, string filenName)
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{
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var filename = filenName + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";
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string fileip = AppSetting.GetAppSetting("FileIP");
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string filepath = CoreHttpContext.MapPath("/File/newxls/");
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var path = filepath + filename;
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//string FileName = AppDomain.CurrentDomain.BaseDirectory + ("/Upload/Excel/") + filenName + ".xls"; //文件存放路径
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if (System.IO.File.Exists(path)) //存在则删除
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{
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System.IO.File.Delete(path);
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}
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System.IO.FileStream objFileStream;
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System.IO.StreamWriter objStreamWriter;
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string strLine = "";
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objFileStream = new System.IO.FileStream(path, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
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objStreamWriter = new System.IO.StreamWriter(objFileStream, Encoding.Unicode);
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for (int i = 0; i < m_DataTable.Columns.Count; i++)
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{
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strLine = strLine + m_DataTable.Columns[i].Caption.ToString() + Convert.ToChar(9); //写列标题
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}
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objStreamWriter.WriteLine(strLine);
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strLine = "";
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for (int i = 0; i < m_DataTable.Rows.Count; i++)
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{
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for (int j = 0; j < m_DataTable.Columns.Count; j++)
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{
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if (m_DataTable.Rows[i].ItemArray[j] == null)
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strLine = strLine + " " + Convert.ToChar(9); //写内容
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else
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{
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string rowstr = "";
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rowstr = m_DataTable.Rows[i].ItemArray[j].ToString();
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if (rowstr.IndexOf("\r\n") > 0)
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rowstr = rowstr.Replace("\r\n", " ");
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if (rowstr.IndexOf("\t") > 0)
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rowstr = rowstr.Replace("\t", " ");
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strLine = strLine + rowstr + Convert.ToChar(9);
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}
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}
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objStreamWriter.WriteLine(strLine);
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strLine = "";
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}
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objStreamWriter.Close();
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objFileStream.Close();
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var url = fileip + "/File/newxls/" + filename;
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return url;
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}
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/// <summary>
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/// 工资报表Excel导出数据合并
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/// </summary>
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/// <param name="path"></param>
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/// <param name="table"></param>
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/// <param name="treeIndex"></param>
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public static void DataTree(DataTable table, string filenName, int treeIndex, out string pathstring) // /apis/File/newxls/工资产量报表20200507114638.xls
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{
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var filename = filenName + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";
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string fileip = AppSetting.GetAppSetting("FileIP");
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string filepath = CoreHttpContext.MapPath("/File/newxls/");
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var path = filepath + filename;
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using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite))
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{
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IWorkbook workBook = new HSSFWorkbook();
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//现在使用的仍然是生成Excel2003的Excel文件，由于03对行数（65535）和列数（255）有限制，所以当数据超出范围后难免出错
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//ArgumentException: Invalid column index (256). Allowable column range for BIFF8 is (0..255) or ('A'..'IV') ...
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if (Path.GetExtension(path).Equals(".xlsx", System.StringComparison.OrdinalIgnoreCase))
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{
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workBook = new XSSFWorkbook();
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}
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string sheetName = string.IsNullOrWhiteSpace(table.TableName) ? "Sheet1" : table.TableName;
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ISheet sheet = workBook.CreateSheet(sheetName);
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IRow row = null;
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int colNum = 8; //合并的列数
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//int colNum = table.Columns.Count;
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//if (treeIndex < table.Columns.Count || treeIndex > 0)
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//{
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// colNum = treeIndex;
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//}
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ICellStyle cellCenterStyle = GetCenter(workBook);
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//IFont font = workBook.CreateFont(); //创建一个字体样式对象
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//font.FontName = "方正舒体"; //和excel里面的字体对应
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//font.IsItalic = true; //斜体
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//font.FontHeightInPoints = 16;//字体大小
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//font.Boldweight = short.MaxValue;//字体加粗
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//cellCenterStyle.SetFont(font); //将字体样式赋给样式对象
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int beginNum = 1;//排除列头，从1开始
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//处理表格列头
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row = sheet.CreateRow(beginNum - 1);
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for (int i = 0; i < table.Columns.Count; i++)
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{
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string strVal = table.Columns[i].ColumnName;
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ICell cell = row.CreateCell(i);
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cell.SetCellValue(strVal);
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cell.CellStyle = cellCenterStyle;
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row.Height = 450;
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sheet.AutoSizeColumn(i);
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List<int> lstColWidth = new List<int>();
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//记录列长度
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lstColWidth.Add(DataLength(strVal));
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//设置列宽
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int maxWidth = lstColWidth.Max() * 600;
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sheet.SetColumnWidth(i, maxWidth);
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}
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//处理数据内容
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for (int i = 0; i < table.Rows.Count; i++)
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{
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row = sheet.CreateRow(beginNum + i);
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row.Height = 350;
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for (int j = 0; j < table.Columns.Count; j++)
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{
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string strVal = table.Rows[i][j].ToString();
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ICell currCell = row.CreateCell(j);
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currCell.SetCellValue(strVal);
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currCell.CellStyle = cellCenterStyle;
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sheet.SetColumnWidth(j, 256 * 15);
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}
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}
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for (int i = 0; i < colNum; i++) //数据条数
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{
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List<int> lstColWidth = new List<int>();
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string currVal = string.Empty;
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string nextVal = string.Empty;
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for (int j = beginNum; j <= sheet.LastRowNum; j++)
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{
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currVal = sheet.GetRow(j).Cells[i].StringCellValue;
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int mk = j;
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if (!string.IsNullOrWhiteSpace(currVal))//排除 空值，空值不做合并处理
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{
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for (int k = j + 1; k <= sheet.LastRowNum; k++)
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{
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nextVal = sheet.GetRow(k).Cells[i].StringCellValue;
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if (currVal != nextVal)
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{
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//因为k 累加所以导致当前值与下个值 不相同，所以记录 当前行数要 减去1
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mk = k - 1;
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break;
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}
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else if (k == sheet.LastRowNum) //边界值，处理最后一行，则提前Break 并记录当前 k
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{
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mk = k;
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break;
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}
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}
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}
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if (mk != j)//排除 空值外，下个值的行数不等于当前行数，则需要合并
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{
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sheet.AddMergedRegion(new CellRangeAddress(j, mk, i, i));
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//sheet.GetRow(j).GetCell(i).SetCellValue("");
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}
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//else
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//{
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// if (mk < sheet.LastRowNum)
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// {
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// if (sheet.GetRow(j).Cells[0].StringCellValue == sheet.GetRow(mk + 1).Cells[0].StringCellValue
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// && sheet.GetRow(j).Cells[1].StringCellValue == sheet.GetRow(mk + 1).Cells[1].StringCellValue
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// && sheet.GetRow(j).Cells[2].StringCellValue == sheet.GetRow(mk + 1).Cells[2].StringCellValue
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// && sheet.GetRow(j).Cells[3].StringCellValue == sheet.GetRow(mk + 1).Cells[3].StringCellValue
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// )
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// {
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// int mmk = mk + 1;
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// sheet.AddMergedRegion(new CellRangeAddress(j, mmk, i, i));
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// }
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// }
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//}
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//if (i == 0) //如果是第一列，则 垂直水平居中
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{
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sheet.GetRow(j).Cells[i].CellStyle = cellCenterStyle;
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}
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//跳到执行下一个不同数据的行
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j = mk;
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//记录列长度
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lstColWidth.Add(DataLength(currVal));
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}
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//设置列宽
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//int maxWidth = lstColWidth.Max() * 600;
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//sheet.SetColumnWidth(i, maxWidth);
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}
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//固定列、行 滚动时不变
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//sheet.CreateFreezePane(3, 1, 3, 1);
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//写入数据流
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workBook.Write(fs);
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var url = fileip + "/apis/File/newxls/" + filename;
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pathstring = url;
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}
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}
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private static ICellStyle GetCenter(IWorkbook workBook, short fontSize = 10)
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{
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ICellStyle cellStyle = workBook.CreateCellStyle();
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IFont font = workBook.CreateFont();
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font.FontName = "微软雅黑";
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font.FontHeightInPoints = fontSize;
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cellStyle.SetFont(font);
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cellStyle.VerticalAlignment = VerticalAlignment.Center;
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cellStyle.Alignment = HorizontalAlignment.Center;
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return cellStyle;
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}
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/// <summary>
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/// 获取字符串长度（中文按2个字节长度）
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/// </summary>
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/// <param name="stringWithEnglishAndChinese"></param>
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/// <returns></returns>
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private static int DataLength(string stringWithEnglishAndChinese)
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{
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int lng = 0;
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for (int i = 0; i < stringWithEnglishAndChinese.Length; i++)
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{
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byte[] b = System.Text.Encoding.Default.GetBytes(stringWithEnglishAndChinese.Substring(i, 1));
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if (b.Length > 1)
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lng += 2;
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else
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lng += 1;
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}
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return lng;
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}
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}
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}
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