消除所有错误，重新构建
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272
DMS.Infrastructure/Helper/ExcelHelper.cs
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272
DMS.Infrastructure/Helper/ExcelHelper.cs
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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.IO;
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using System.Linq;
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using System.Reflection;
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using DMS.Core.Enums;
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using NPOI.SS.UserModel;
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using NPOI.XSSF.UserModel;
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namespace DMS.Infrastructure.Helper;
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/// <summary>
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/// Excel 操作帮助类
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/// </summary>
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public static class ExcelHelper
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{
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/// <summary>
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/// 将数据列表导出到 Excel 文件。
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/// </summary>
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/// <typeparam name="T">数据类型。</typeparam>
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/// <param name="data">要导出的数据列表。</param>
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/// <param name="filePath">Excel 文件的保存路径。</param>
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/// <param name="sheetName">工作表的名称。</param>
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public static void ExportToExcel<T>(IEnumerable<T> data, string filePath, string sheetName = "Sheet1") where T : class
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{
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if (data == null)
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{
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throw new ArgumentNullException(nameof(data));
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}
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using (var fs = new FileStream(filePath, FileMode.Create, FileAccess.Write))
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{
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IWorkbook workbook = new XSSFWorkbook();
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ISheet sheet = workbook.CreateSheet(sheetName);
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// 获取T类型的属性
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PropertyInfo[] properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
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// 创建表头
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IRow headerRow = sheet.CreateRow(0);
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for (int i = 0; i < properties.Length; i++)
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{
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headerRow.CreateCell(i).SetCellValue(properties[i].Name);
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}
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// 填充数据
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int rowIndex = 1;
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foreach (var item in data)
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{
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IRow dataRow = sheet.CreateRow(rowIndex++);
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for (int i = 0; i < properties.Length; i++)
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{
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object value = properties[i].GetValue(item, null);
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dataRow.CreateCell(i).SetCellValue(value?.ToString() ?? string.Empty);
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}
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}
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workbook.Write(fs);
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}
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}
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/// <summary>
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/// 将 DataTable 导出到 Excel 文件。
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/// </summary>
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/// <param name="dataTable">要导出的 DataTable。</param>
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/// <param name="filePath">Excel 文件的保存路径。</param>
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/// <param name="sheetName">工作表的名称。</param>
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public static void ExportToExcel(DataTable dataTable, string filePath, string sheetName = "Sheet1")
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{
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if (dataTable == null)
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{
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throw new ArgumentNullException(nameof(dataTable));
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}
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using (var fs = new FileStream(filePath, FileMode.Create, FileAccess.Write))
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{
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IWorkbook workbook = new XSSFWorkbook();
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ISheet sheet = workbook.CreateSheet(sheetName);
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// 创建表头
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IRow headerRow = sheet.CreateRow(0);
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for (int i = 0; i < dataTable.Columns.Count; i++)
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{
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headerRow.CreateCell(i).SetCellValue(dataTable.Columns[i].ColumnName);
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}
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// 填充数据
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for (int i = 0; i < dataTable.Rows.Count; i++)
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{
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IRow dataRow = sheet.CreateRow(i + 1);
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for (int j = 0; j < dataTable.Columns.Count; j++)
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{
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dataRow.CreateCell(j).SetCellValue(dataTable.Rows[i][j].ToString());
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}
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}
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workbook.Write(fs);
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}
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}
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/// <summary>
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/// 从 Excel 文件导入数据到 DataTable。
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/// </summary>
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/// <param name="filePath">Excel 文件的路径。</param>
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/// <param name="sheetName">工作表的名称。</param>
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/// <param name="hasHeaderRow">是否包含表头行。</param>
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/// <returns>包含导入数据的 DataTable。</returns>
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public static DataTable ImportFromExcel(string filePath, string sheetName = "Sheet1", bool hasHeaderRow = true)
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{
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if (!File.Exists(filePath))
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{
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throw new FileNotFoundException("The specified file does not exist.", filePath);
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}
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var dt = new DataTable();
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using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
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{
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IWorkbook workbook = new XSSFWorkbook(fs);
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ISheet sheet = workbook.GetSheet(sheetName) ?? workbook.GetSheetAt(0);
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if (sheet == null)
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{
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throw new Exception($"Sheet with name '{sheetName}' not found.");
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}
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IRow headerRow = hasHeaderRow ? sheet.GetRow(0) : null;
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int firstRow = hasHeaderRow ? 1 : 0;
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int cellCount = headerRow?.LastCellNum ?? sheet.GetRow(sheet.FirstRowNum).LastCellNum;
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// 创建列
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for (int i = 0; i < cellCount; i++)
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{
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string columnName = hasHeaderRow ? headerRow.GetCell(i)?.ToString() ?? $"Column{i + 1}" : $"Column{i + 1}";
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dt.Columns.Add(columnName);
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}
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// 填充数据
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for (int i = firstRow; i <= sheet.LastRowNum; i++)
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{
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IRow row = sheet.GetRow(i);
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if (row == null) continue;
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DataRow dataRow = dt.NewRow();
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for (int j = 0; j < cellCount; j++)
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{
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ICell cell = row.GetCell(j);
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dataRow[j] = cell?.ToString() ?? string.Empty;
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}
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dt.Rows.Add(dataRow);
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}
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}
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return dt;
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}
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/// <summary>
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/// 从 Excel 文件导入数据到对象列表。
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/// </summary>
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/// <typeparam name="T">要转换的目标类型。</typeparam>
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/// <param name="filePath">Excel 文件的路径。</param>
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/// <param name="sheetName">工作表的名称。</param>
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/// <returns>包含导入数据的对象列表。</returns>
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public static List<T> ImportFromExcel<T>(string filePath, string sheetName = "Sheet1") where T : class, new()
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{
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if (!File.Exists(filePath))
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{
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throw new FileNotFoundException("The specified file does not exist.", filePath);
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}
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var list = new List<T>();
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PropertyInfo[] properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
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using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
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{
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IWorkbook workbook = new XSSFWorkbook(fs);
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ISheet sheet = workbook.GetSheet(sheetName) ?? workbook.GetSheetAt(0);
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if (sheet == null)
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{
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throw new Exception($"Sheet with name '{sheetName}' not found.");
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}
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IRow headerRow = sheet.GetRow(0);
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if (headerRow == null)
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{
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throw new Exception("Header row not found.");
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}
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// 创建列名到属性的映射
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var columnMap = new Dictionary<int, PropertyInfo>();
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for (int i = 0; i < headerRow.LastCellNum; i++)
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{
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string columnName = headerRow.GetCell(i)?.ToString();
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if (!string.IsNullOrEmpty(columnName))
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{
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var prop = properties.FirstOrDefault(p => p.Name.Equals(columnName, StringComparison.OrdinalIgnoreCase));
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if (prop != null)
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{
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columnMap[i] = prop;
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}
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}
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}
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// 读取数据行
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for (int i = 1; i <= sheet.LastRowNum; i++)
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{
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IRow row = sheet.GetRow(i);
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if (row == null) continue;
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var item = new T();
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foreach (var map in columnMap)
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{
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ICell cell = row.GetCell(map.Key);
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if (cell != null)
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{
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try
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{
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// 尝试进行类型转换
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object value = Convert.ChangeType(cell.ToString(), map.Value.PropertyType);
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map.Value.SetValue(item, value, null);
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}
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catch (Exception)
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{
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// 转换失败时可以记录日志或设置默认值
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}
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}
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}
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list.Add(item);
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}
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}
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return list;
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}
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/// <summary>
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/// 从博途的变量表中导如变量
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/// </summary>
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/// <param name="excelFilePath"></param>
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/// <returns></returns>
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/// <exception cref="AggregateException"></exception>
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public static List<DMS.Core.Models.Variable> ImprotFromTiaVariableTable(string excelFilePath)
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{
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// Act
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// _testFilePath = "C:\Users\Administrator\Desktop\浓度变量.xlsx";
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var dataTable = ExcelHelper.ImportFromExcel(excelFilePath);
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// 判断表头的名字
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if (dataTable.Columns[0].ColumnName != "Name" || dataTable.Columns[2].ColumnName != "Data Type" &&
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dataTable.Columns[3].ColumnName != "Logical Address")
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throw new AggregateException(
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"Excel表格式不正确：第一列的名字是：Name,第三列的名字是：Data Type,Data Type,第四列的名字是：Logical Address,请检查");
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List<DMS.Core.Models.Variable> variableDatas = new List<DMS.Core.Models.Variable>();
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foreach (DataRow dataRow in dataTable.Rows)
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{
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DMS.Core.Models.Variable variable = new DMS.Core.Models.Variable();
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variable.Name = dataRow["Name"].ToString();
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variable.DataType = (DMS.Core.Enums.SignalType)Enum.Parse(typeof(DMS.Core.Enums.SignalType), SiemensHelper.S7ToCSharpTypeString(dataRow["Data Type"].ToString()));
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var exS7Addr = dataRow["Logical Address"].ToString();
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if (exS7Addr.StartsWith("%"))
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{
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variable.S7Address = exS7Addr.Substring(1);
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}
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variable.OpcUaNodeId = "";
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variable.Protocol = ProtocolType.S7;
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variable.PollLevel = PollLevelType.ThirtySeconds;
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variableDatas.Add(variable);
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}
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return variableDatas;
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}
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}
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