Initial_commit_SecMPS_v2
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210
api_sqlsugar/VolPro.Core/Generic/GenericExcelImportHelper.cs
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210
api_sqlsugar/VolPro.Core/Generic/GenericExcelImportHelper.cs
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using OfficeOpenXml;
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using VolPro.Core.Extensions;
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using VolPro.Core.UserManager;
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using VolPro.Core.Utilities;
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namespace VolPro.Core.Generic
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{
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internal static class GenericExcelImportHelper
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{
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/// <summary>
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/// 从 Excel 流读取数据，按 CellOptions 校验表头和字典，
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/// 返回 WebResponseContent，成功时 Data 为 List<Dictionary<string,object>>
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/// </summary>
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public static WebResponseContent ReadRowsByCellOptions(string tableName, Stream excelStream, int importStartRowIndex = 1,
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HashSet<string> ignoreFields=null)
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{
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var response = WebResponseContent.Instance;
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var resultRows = new List<Dictionary<string, object>>();
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if (excelStream == null || !excelStream.CanRead)
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return response.Error("未能读取上传的文件".Translator());
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var cellOptions = GetCellOptions(tableName);
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if (cellOptions == null || cellOptions.Count == 0)
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return response.Error($"未找到表【{tableName}】的导出配置".Translator());
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using var package = new ExcelPackage(excelStream);
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var sheet = package.Workbook.Worksheets.FirstOrDefault();
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if (sheet?.Dimension == null || sheet.Dimension.End.Row <= importStartRowIndex)
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return response.Error("导入文件中没有数据".Translator());
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if (ignoreFields!=null)
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{
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cellOptions = cellOptions.Where(x => !ignoreFields.Contains(x.ColumnName)).ToList();
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}
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if (!BindHeaderIndexes(sheet, cellOptions, importStartRowIndex, out string headerError))
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return response.Error(headerError);
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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 => (x.ColumnName, x.SearchType, x.EditType))
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.Distinct()
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.ToList();
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var multiSelectColumns = dicNoKeys
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.Where(x => x.SearchType == "checkbox" || x.SearchType == "selectList" || x.SearchType == "treeSelect"
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|| x.EditType == "checkbox" || x.EditType == "selectList" || x.EditType == "treeSelect")
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.Select(x => x.ColumnName)
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.ToArray();
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// 日期字段类型（用于 Excel 数字日期转换）
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var dateFields = TableColumnContext.Data
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.Where(x => x.TableName == tableName && (x.ColumnType == "Date" || x.ColumnType == "DateTime"))
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.Select(s => s.ColumnName)
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.ToHashSet(StringComparer.OrdinalIgnoreCase);
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int rowStart = importStartRowIndex + 1;
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int rowEnd = sheet.Dimension.End.Row;
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int colStart = sheet.Dimension.Start.Column;
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int colEnd = sheet.Dimension.End.Column;
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for (int r = rowStart; r <= rowEnd; r++)
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{
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var rowDict = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
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bool hasAnyValue = false;
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for (int c = colStart; c <= colEnd; c++)
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{
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var opt = cellOptions.FirstOrDefault(x => x.Index == c);
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if (opt == null) continue;
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string raw = sheet.Cells[r, c].Value?.ToString();
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raw = raw?.Trim();
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if (string.IsNullOrEmpty(raw))
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{
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if (opt.Requierd)
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{
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string msg = "第[{$ts}]行,[{$ts}]验证未通过,不能为空"
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.TranslatorFormat(r, opt.ColumnCNName);
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return response.Error(msg);
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}
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rowDict[opt.ColumnName] = null;
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continue;
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}
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hasAnyValue = true;
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// 日期校验与转换（参考 EPPlusHelper.ReadToDataTable 中的日期处理）：
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// 如果当前字段在 dateFields 中，且值为长度 5 的数字（Excel 序列号），则转换成 DateTime。
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if (dateFields.Contains(opt.ColumnName)
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&& raw.Length == 5
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&& int.TryParse(raw, out int days))
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{
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var dt = new DateTime(1900, 1, 1).AddDays(days - 2);
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rowDict[opt.ColumnName] = dt;
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continue;
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}
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if (string.IsNullOrEmpty(opt.DropNo))
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{
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rowDict[opt.ColumnName] = raw;
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continue;
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}
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if (opt.KeyValues == null)
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{
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return response.Error("[{$ts}]数据字典缺失".TranslatorFormat(opt.ColumnCNName));
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}
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string key = null;
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if (multiSelectColumns.Contains(opt.ColumnName))
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{
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var cellValues = raw.Replace("，", ",")
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.Split(",", StringSplitOptions.RemoveEmptyEntries);
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var keys = opt.KeyValues
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.Where(x => cellValues.Contains(x.Value))
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.Select(s => s.Key)
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.ToArray();
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if (cellValues.Length == keys.Length)
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{
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key = string.Join(",", keys);
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}
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}
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else
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{
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key = opt.KeyValues
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.Where(x => x.Value == raw)
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.Select(s => s.Key)
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.FirstOrDefault();
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}
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if (key == null)
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{
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string values = string.Join(",",
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opt.KeyValues
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.Take(300)
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.Select(s => s.Value.Translator()));
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string msg = "第[{$ts}]行,[{$ts}]验证未通过,只能填写[{$ts}]"
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.TranslatorFormat(r, opt.ColumnCNName, values);
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return response.Error(msg);
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}
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rowDict[opt.ColumnName] = key;
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}
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if (!hasAnyValue) continue;
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resultRows.Add(rowDict);
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}
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return response.OK(null, resultRows);
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}
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private static List<CellOptions> GetCellOptions(string tableName)
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{
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var mi = typeof(EPPlusHelper).GetMethod(
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"GetExportColumnInfo",
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BindingFlags.NonPublic | BindingFlags.Static);
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if (mi == null) return null;
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return mi.Invoke(null, new object[] { tableName, false, false, null }) as List<CellOptions>;
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}
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private static bool BindHeaderIndexes(
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ExcelWorksheet sheet,
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List<CellOptions> cellOptions,
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int headerRow,
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out string error)
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{
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error = null;
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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 columnCNName = sheet.Cells[headerRow, j].Value?.ToString()?.Trim();
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if (string.IsNullOrEmpty(columnCNName)) continue;
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var options = cellOptions
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.FirstOrDefault(x => x.ColumnCNName.Translator() == columnCNName);
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if (options == null)
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{
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error = "[{$ts}]不是模板中的列".TranslatorReplace(columnCNName, true);
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return false;
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}
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if (options.Index > 0)
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{
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error = "[{$ts}]列名重复".TranslatorReplace(columnCNName, true);
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return false;
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}
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options.Index = j;
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}
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if (cellOptions.Exists(x => x.Index == 0))
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{
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var errorOps = cellOptions
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.Where(x => x.Index == 0)
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.Select(s => s.ColumnCNName.Translator() + "," + s.ColumnName);
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error = $"{"导入文件列未找到字段".Translator()}:{string.Join("; ", errorOps)}";
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return false;
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}
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return true;
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}
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}
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}
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