using OfficeOpenXml;
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using OfficeOpenXml.Style;
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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.Linq;
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using System.Linq.Expressions;
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using System.Reflection;
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using WIDESEA_Core.DBManager;
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using WIDESEA_Core.Extensions;
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using WIDESEA_Core.Infrastructure;
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using WIDESEA_Entity.DomainModels;
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namespace WIDESEA_Core.Utilities
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{
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public class EPPlusHelper
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{
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/// <summary>
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/// 导入模板(仅限框架导出模板使用)(202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="path"></param>
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/// <param name="exportColumns">指定导出的列</param>
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/// <param name="ignoreColumns">忽略不导出的列(如果设置了exportColumns,ignoreColumns不会生效)</param>
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/// <returns></returns>
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public static WebResponseContent ReadToDataTable<T>(string path, Expression<Func<T, object>> exportColumns = null, List<string> ignoreTemplate = null)
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{
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WebResponseContent responseContent = new WebResponseContent();
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FileInfo file = new FileInfo(path);
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if (!file.Exists) return responseContent.Error("未找到上传的文件,请重新上传");
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List<T> entities = new List<T>();
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using (ExcelPackage package = new ExcelPackage(file))
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{
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if (package.Workbook.Worksheets.Count == 0 ||
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package.Workbook.Worksheets.FirstOrDefault().Dimension.End.Row <= 1)
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return responseContent.Error("未导入数据");
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//2020.08.11修复获取表结构信息时，表为别名时查不到数据的问题
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//typeof(T).GetEntityTableName()
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List<CellOptions> cellOptions = GetExportColumnInfo(typeof(T).Name, false, false);
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//设置忽略的列
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if (exportColumns != null)
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{
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cellOptions = cellOptions
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.Where(x => exportColumns.GetExpressionToArray().Select(s => s.ToLower()).Contains(x.ColumnName.ToLower()))
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.ToList();
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}
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else if (ignoreTemplate != null)
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{
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cellOptions = cellOptions
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.Where(x => !ignoreTemplate.Select(s => s.ToLower()).Contains(x.ColumnName.ToLower()))
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.ToList();
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}
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ExcelWorksheet sheetFirst = package.Workbook.Worksheets.FirstOrDefault();
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for (int j = sheetFirst.Dimension.Start.Column, k = sheetFirst.Dimension.End.Column; j <= k; j++)
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{
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string columnCNName = sheetFirst.Cells[1, j].Value?.ToString()?.Trim();
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if (!string.IsNullOrEmpty(columnCNName))
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{
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CellOptions options = cellOptions.Where(x => x.ColumnCNName == columnCNName).FirstOrDefault();
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if (options == null)
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{
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return responseContent.Error("导入文件列[" + columnCNName + "]不是模板中的列");
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}
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if (options.Index > 0)
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{
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return responseContent.Error("导入文件列[" + columnCNName + "]不能重复");
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}
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options.Index = j;
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}
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}
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if (cellOptions.Exists(x => x.Index == 0))
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{
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return responseContent.Error("导入文件列必须与导入模板相同");
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}
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PropertyInfo[] propertyInfos = typeof(T).GetProperties()
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.Where(x => cellOptions.Select(s => s.ColumnName).Contains(x.Name))
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.ToArray();
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ExcelWorksheet sheet = package.Workbook.Worksheets.FirstOrDefault();
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for (int m = sheet.Dimension.Start.Row + 1, n = sheet.Dimension.End.Row; m <= n; m++)
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{
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T entity = Activator.CreateInstance<T>();
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for (int j = sheet.Dimension.Start.Column, k = sheet.Dimension.End.Column; j <= k; j++)
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{
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string value = sheet.Cells[m, j].Value?.ToString();
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CellOptions options = cellOptions.Where(x => x.Index == j).FirstOrDefault();
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PropertyInfo property = propertyInfos.Where(x => x.Name == options.ColumnName).FirstOrDefault();
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if (options.Requierd && string.IsNullOrEmpty(value))
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{
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return responseContent.Error($"第{m}行[{options.ColumnCNName}]验证未通过,不能为空。");
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}
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//验证字典数据
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if (!string.IsNullOrEmpty(options.DropNo))
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{
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string key = options.KeyValues.Where(x => x.Value == value)
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.Select(s => s.Key)
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.FirstOrDefault();
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if (key == null)//&& options.Requierd
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{
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//小于20个字典项，直接提示所有可选value
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string values = options.KeyValues.Count < 20 ? (string.Join(',', options.KeyValues.Select(s => s.Value))) : options.ColumnCNName;
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return responseContent.Error($"第{m}行[{options.ColumnCNName}]验证未通过,必须是字典数据中[{values}]的值。");
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}
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//将值设置为数据字典的Key,如果导入为是/否字典项，存在表中应该对为1/0
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value = key;
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}
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//验证导入与实体数据类型是否相同
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(bool, string, object) result = property.ValidationProperty(value, options.Requierd);
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if (!result.Item1)
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{
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return responseContent.Error($"第{m}行[{options.ColumnCNName}]验证未通过,{result.Item2}");
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}
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property.SetValue(entity, value.ChangeType(property.PropertyType));
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}
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entity.SetCreateDefaultVal();
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entities.Add(entity);
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}
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}
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return responseContent.OK(null, entities);
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="table"></param>
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/// <param name="columnCNName">key为字段名, ValueTuple<string, int>为字段中文名及列宽度</param>
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/// <param name="dicNos"> List<ValueTuple<string, string, string>>item1列名,item2 字典value,item3字典name </param>
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/// <returns>返回文件保存的路径</returns>
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public static string Export(DataTable table, List<CellOptions> cellOptions, string savePath, string fileName)
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{
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if (!Directory.Exists(savePath)) Directory.CreateDirectory(savePath);
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//获取所有有值的数据源
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var dicNoKeys = cellOptions
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.Where(x => !string.IsNullOrEmpty(x.DropNo) && x.KeyValues != null && x.KeyValues.Keys.Count > 0)
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.Select(x => new { x.DropNo, x.ColumnName }).Distinct().ToList();
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using (ExcelPackage package = new ExcelPackage())
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{
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var worksheet = package.Workbook.Worksheets.Add("sheet1");
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for (int i = 0; i < table.Columns.Count; i++)
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{
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using (ExcelRange range = worksheet.Cells[1, i + 1])
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{
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worksheet.Cells[1, i + 1].Style.Fill.PatternType = ExcelFillStyle.Solid;
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worksheet.Cells[1, i + 1].Style.Fill.BackgroundColor.SetColor(Color.Gray); //背景色
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worksheet.Cells[1, i + 1].Style.Font.Color.SetColor(Color.White);
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}
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CellOptions options = cellOptions.Where(x => x.ColumnName == table.Columns[i].ColumnName).FirstOrDefault();
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if (options != null)
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{
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worksheet.Column(i + 1).Width = options.ColumnWidth / 6.00;
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worksheet.Cells[1, i + 1].Value = options.ColumnCNName;
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}
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else
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{
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worksheet.Column(i + 1).Width = 15;
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worksheet.Cells[1, i + 1].Value = table.Columns[i].ColumnName;
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}
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}
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for (int i = 0; i < table.Rows.Count; i++)
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{
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for (int j = 0; j < table.Columns.Count; j++)
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{
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string cellValue = (table.Rows[i][j] ?? "").ToString();
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if (dicNoKeys.Exists(x => x.ColumnName == table.Columns[j].ColumnName))
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{
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cellOptions.Where(x => x.ColumnName == table.Columns[j].ColumnName)
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.Select(s => s.KeyValues)
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.FirstOrDefault()
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.TryGetValue(cellValue, out string result);
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cellValue = result ?? cellValue;
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}
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worksheet.Cells[i + 2, j + 1].Value = cellValue;
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}
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}
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package.SaveAs(new FileInfo(savePath + fileName));
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}
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return savePath + fileName;
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}
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/// <summary>
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/// 下载导出模板(仅限框架导出模板使用)(202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="exportColumns">指定导出的列</param>
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/// <param name="ignoreColumns">忽略不导出的列(如果设置了exportColumns,ignoreColumns不会生效)</param>
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/// <param name="savePath">导出文件的绝对路径</param>
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/// <param name="fileName">导出的文件名+后缀,如:123.xlsx</param>
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/// <returns></returns>
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public static string ExportTemplate<T>(List<string> exportColumns, List<string> ignoreColumns, string savePath, string fileName)
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{
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return Export<T>(null, exportColumns, ignoreColumns, savePath, fileName, true);
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}
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/// <summary>
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/// 下载导出模板(仅限框架导出模板使用)(202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="exportColumns">指定导出的列</param>
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/// <param name="ignoreColumns">忽略不导出的列(如果设置了exportColumns,ignoreColumns不会生效)</param>
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/// <param name="savePath">导出文件的绝对路径</param>
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/// <param name="fileName">导出的文件名+后缀,如:123.xlsx</param>
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/// <returns></returns>
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public static string ExportTemplate<T>(Expression<Func<T, object>> exportColumns, List<string> ignoreColumns, string savePath, string fileName)
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{
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return Export<T>(null, exportColumns?.GetExpressionToArray(), ignoreColumns, savePath, fileName, true);
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}
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/// <summary>
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/// 下载导出模板(仅限框架导出模板使用)(202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="ignoreColumns">忽略不导出的列</param>
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/// <param name="savePath">导出文件的绝对路径</param>
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/// <param name="fileName">导出的文件名+后缀,如:123.xlsx</param>
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/// <returns></returns>
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public static string ExportTemplate<T>(List<string> ignoreColumns, string savePath, string fileName)
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{
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return Export<T>(null, null, ignoreColumns, savePath, fileName, true);
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}
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/// <summary>
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/// 导出excel文件(导入功能里的导出模板也使用的此功能，list传的null，导出的文件只有模板的标题)
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/// (202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="cellOptions">对应代码生成器的配置</param>
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/// <param name="ignore">忽略不导出的字段</param>
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/// <param name="savePath"></param>
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/// <param name="fileName"></param>
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/// <param name="template"></param>
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/// <returns></returns>
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public static string Export<T>(List<T> list, Expression<Func<T, object>> ignore, string savePath, string fileName, bool template = false)
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{
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return Export(list, null, ignore?.GetExpressionProperty(), savePath, fileName, template);
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}
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/// <summary>
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/// 导出excel文件(导入功能里的导出模板也使用的此功能，list传的null，导出的文件只有模板的标题)
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/// (202.05.07)
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list">导出的对象</param>
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/// <param name="exportColumns">指定导出的列</param>
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/// <param name="ignoreColumns">忽略不导出的列(如果设置了exportColumns,ignoreColumns不会生效)</param>
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/// <param name="savePath">保存路径</param>
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/// <param name="fileName">保存的文件名</param>
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/// <param name="template">是否为下载模板</param>
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/// <returns></returns>
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public static string Export<T>(List<T> list, IEnumerable<string> exportColumns, IEnumerable<string> ignoreColumns, string savePath, string fileName, bool template = false)
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{
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if (!Directory.Exists(savePath)) Directory.CreateDirectory(savePath);
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//获取代码生成器对应的配置信息
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// List<CellOptions> cellOptions = GetExportColumnInfo(typeof(T).GetEntityTableName(), template);
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//2020.06.02修复使用表别名时读取不到配置信息
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List<CellOptions> cellOptions = GetExportColumnInfo(typeof(T).Name, template);
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string fullPath = savePath + fileName;
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//获取所有有值的数据源
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var dicNoKeys = cellOptions
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.Where(x => !string.IsNullOrEmpty(x.DropNo) && x.KeyValues != null && x.KeyValues.Keys.Count > 0)
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.Select(x => new { x.DropNo, x.ColumnName }).Distinct().ToList();
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List<PropertyInfo> propertyInfo = null;
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/*导出时，代码生成器中的表配置信息Sys_TableInfo/Sys_TableColumn必须与当前数据库相同，否则导出来可能没有数据*/
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//2020.06.02优化读取导出列配置信息
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//导出指定的列
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//如果指定了导出的标题列，忽略的标题列不再起作用
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if (exportColumns != null && exportColumns.Count() > 0)
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{
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propertyInfo =
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typeof(T).GetProperties()
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.Where(x => exportColumns.Select(g => g.ToLower()).Contains(x.Name.ToLower())).ToList();
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//.Where(x => cellOptions.Select(s => s.ColumnName) //获取代码生成器配置的列
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//.Contains(x.Name)).ToList();
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}
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else if (ignoreColumns != null && ignoreColumns.Count() > 0)
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{
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propertyInfo = typeof(T).GetProperties()
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.Where(x => !ignoreColumns.Select(g => g.ToLower()).Contains(x.Name.ToLower()))
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.Where(x => cellOptions.Select(s => s.ColumnName).Contains(x.Name)) //获取代码生成器配置的列
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.ToList();
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}
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else
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{
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//默认导出代码生成器中配置【是否显示】=是的列
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propertyInfo = typeof(T).GetProperties()
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.Where(x => cellOptions.Select(s => s.ColumnName).Contains(x.Name)) //获取代码生成器配置的列
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.ToList();
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/*
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* 如果propertyInfo查出来的长度=0
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* 1、代码生成器中的配置信息是否同步到当前数据库
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* 2、代码生成器中的配置列名与model的字段是否大小写一致
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*/
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}
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string[] dateArr = null;
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if (!template)
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{
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dateArr = propertyInfo.Where(x => x.PropertyType == typeof(DateTime)
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|| x.PropertyType == typeof(DateTime?))
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.Select(s => s.Name).ToArray();
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}
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using (ExcelPackage package = new ExcelPackage())
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{
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var worksheet = package.Workbook.Worksheets.Add("sheet1");
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for (int i = 0; i < propertyInfo.Count; i++)
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{
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string columnName = propertyInfo[i].Name;
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using (ExcelRange range = worksheet.Cells[1, i + 1])
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{
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worksheet.Cells[1, i + 1].Style.Fill.PatternType = ExcelFillStyle.Solid;
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//默认灰色背景，白色字体
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Color backgroundColor = Color.Gray;
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//字体颜色
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Color fontColor = Color.White;
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//下载模板并且是必填项，将表格设置为黄色
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if (template)
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{
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fontColor = Color.Black;
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if (cellOptions.Exists(x => x.ColumnName == columnName && x.Requierd))
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{
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backgroundColor = Color.Yellow; //黄色必填
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}
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else
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{
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backgroundColor = Color.White;
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}
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}
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worksheet.Cells[1, i + 1].Style.Fill.BackgroundColor.SetColor(backgroundColor); //背景色
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worksheet.Cells[1, i + 1].Style.Font.Color.SetColor(fontColor);//字体颜色
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}
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CellOptions options = cellOptions.Where(x => x.ColumnName == columnName).FirstOrDefault();
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if (options != null)
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{
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worksheet.Column(i + 1).Width = options.ColumnWidth / 6.00;
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worksheet.Cells[1, i + 1].Value = options.ColumnCNName;
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}
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else
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{
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worksheet.Column(i + 1).Width = 15;
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worksheet.Cells[1, i + 1].Value = columnName;
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}
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}
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//下载模板直接返回
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if (template)
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{
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package.SaveAs(new FileInfo(fullPath));
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return fullPath;
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}
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for (int i = 0; i < list.Count; i++)
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{
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for (int j = 0; j < propertyInfo.Count; j++)
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{
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string cellValue = null;
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if (dateArr != null && dateArr.Contains(propertyInfo[j].Name))
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{
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object value = propertyInfo[j].GetValue(list[i]);
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cellValue = value == null ? "" : ((DateTime)value).ToString("yyyy-MM-dd HH:mm:sss").Replace(" 00:00:00", "");
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}
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else
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{
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cellValue = (propertyInfo[j].GetValue(list[i]) ?? "").ToString();
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}
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if (dicNoKeys.Exists(x => x.ColumnName == propertyInfo[j].Name))
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{
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cellOptions.Where(x => x.ColumnName == propertyInfo[j].Name)
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.Select(s => s.KeyValues)
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.FirstOrDefault()
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.TryGetValue(cellValue, out string result);
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cellValue = result ?? cellValue;
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}
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worksheet.Cells[i + 2, j + 1].Value = cellValue;
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}
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}
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package.SaveAs(new FileInfo(fullPath));
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}
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return fullPath;
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}
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/// <summary>
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/// 获取导出的列的数据信息
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/// </summary>
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/// <param name="tableName"></param>
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/// <param name="temlate">是否为下载模板</param>
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/// filterKeyValue是否过滤Key相同的数据
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/// <returns></returns>
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private static List<CellOptions> GetExportColumnInfo(string tableName, bool temlate = false, bool filterKeyValue = true)
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{
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//&& x.IsDisplay == 1&&x.IsReadDataset==0只导出代码生器中设置为显示并且不是只读的列，可根据具体业务设置导出列
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// && x.IsReadDataset == 0
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//2020.06.02增加不区分大表名大小写: 原因mysql可能是表名是小写，但生成model的时候强制大写
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//x => x.TableName.ToLower() == tableName.ToLower()
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List<CellOptions> cellOptions = DBServerProvider.DbContext.Set<Sys_TableColumn>()
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.Where(x => x.TableName.ToLower() == tableName.ToLower() && x.IsDisplay == 1).Select(c => new CellOptions()
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{
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ColumnName = c.ColumnName,
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ColumnCNName = c.ColumnCnName,
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DropNo = c.DropNo,
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Requierd = c.IsNull > 0 ? false : true,
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ColumnWidth = c.ColumnWidth ?? 90
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}).ToList();
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if (temlate) return cellOptions;
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var dicNos = cellOptions.Where(x => !string.IsNullOrEmpty(x.DropNo)).Select(c => c.DropNo);
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if (dicNos.Count() == 0) return cellOptions;
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var dictionaries = DictionaryManager.GetDictionaries(dicNos);
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//获取绑定字典数据源下拉框的值
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foreach (string dicNo in dicNos.Distinct())
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{
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Dictionary<string, string> keyValues = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
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List<Sys_DictionaryList> dictionaryLists = dictionaries
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.Where(x => x.DicNo == dicNo && x.Sys_DictionaryList != null)
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.Select(s => s.Sys_DictionaryList).FirstOrDefault();
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if (dictionaryLists == null || dictionaryLists.Count == 0) continue;
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foreach (var item in dictionaryLists)
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{
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////filterKeyValue为true过滤keyvalue相不的项,key==value相同的则不处理
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if (filterKeyValue && item.DicName == item.DicValue) continue;
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if (keyValues.ContainsKey(item.DicValue)) continue;
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keyValues.Add(item.DicValue, item.DicName);
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}
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foreach (CellOptions options in cellOptions.Where(x => x.DropNo == dicNo))
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{
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options.KeyValues = keyValues;
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}
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}
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return cellOptions;
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}
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}
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public class CellOptions
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{
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public string ColumnName { get; set; }//导出表的列
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public string ColumnCNName { get; set; }//导出列的中文名
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public string DropNo { get; set; }//字典编号
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public int ColumnWidth { get; set; }//导出列的宽度,代码生成维护的宽度
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public bool Requierd { get; set; } //是否必填
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public int Index { get; set; }//列所在模板的序号(导入用)
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//对应字典项维护的Key,Value
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public Dictionary<string, string> KeyValues { get; set; }
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//public string Value { get; set; } //对应字典项维护的Value
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//public string Name { get; set; } //对应字典项显示的名称
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}
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}
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