From a4080490bd86d0d6687d423035097744c2463c9d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E6=B7=B3?= <454313500@qq.com>
Date: Wed, 15 Nov 2023 19:12:24 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B7=BB=E5=8A=A0excel=E6=A8=A1?=
 =?UTF-8?q?=E5=9D=97=E6=90=AD=E5=BB=BA?=
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---
 .../Yi.Framework.Module/Excel/OemClient.cs    | 119 ++++++++++++++++++
 .../Yi.Framework.Module.csproj                |   1 +
 2 files changed, 120 insertions(+)
 create mode 100644 Yi.Furion.Net6/Yi.Framework.Module/Excel/OemClient.cs

diff --git a/Yi.Furion.Net6/Yi.Framework.Module/Excel/OemClient.cs b/Yi.Furion.Net6/Yi.Framework.Module/Excel/OemClient.cs
new file mode 100644
index 00000000..977cc02d
--- /dev/null
+++ b/Yi.Furion.Net6/Yi.Framework.Module/Excel/OemClient.cs
@@ -0,0 +1,119 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using NPOI.SS.UserModel;
+using NPOI.XSSF.UserModel;
+using Org.BouncyCastle.Utilities.Collections;
+
+namespace Yi.Framework.Module.Excel
+{
+    internal class OemClient
+    {
+        public void Export<T>(List<T> entityList, string filePath)
+        {
+            var properties = typeof(T).GetProperties().Where(x => x.GetCustomAttribute<DisplayNameAttribute>() is not null).Where(x => x.GetGetMethod().IsPublic).ToList();
+            // 创建工作簿
+            IWorkbook workbook = new XSSFWorkbook();
+            // 创建工作表
+            ISheet sheet = workbook.CreateSheet("sheet");
+
+
+            // 写入表头
+            IRow headerRow = sheet.CreateRow(0);
+            for (int j = 0; j < properties.Count(); j++)
+            {
+                headerRow.CreateCell(j).SetCellValue(properties[j].GetCustomAttribute<DisplayNameAttribute>()!.DisplayName);
+            }
+
+            // 写入数据
+            for (int i = 0; i < entityList.Count(); i++)
+            {
+                var currentEntity = entityList[i];
+                IRow dataRow = sheet.CreateRow(i + 1);
+                for (int j = 0; j < properties.Count(); j++)
+                {
+                    var currentPropertiy = properties[j];
+
+                    //只处理简单类型
+                    dataRow.CreateCell(j).SetCellValue(JsonSerializer.Serialize(currentPropertiy.GetValue(currentEntity)).TrimStart("\"".ToCharArray()).TrimEnd("\"".ToCharArray()));
+                }
+            }
+
+            // 保存文件
+            using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write))
+            {
+                workbook.Write(fs);
+            }
+
+            workbook.Dispose();
+        }
+
+
+        public List<T> Import<T>(string filePath) where T : new()
+        {
+            List<T> result = new();
+
+            Dictionary<int, PropertyInfo> propHas = new Dictionary<int, PropertyInfo>();
+            var properties = typeof(T).GetProperties().Where(x => x.GetCustomAttribute<DisplayNameAttribute>() is not null).Where(x => x.GetGetMethod().IsPublic).ToList();
+
+
+            // 创建文件流
+            using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+            {
+                // 创建工作簿
+                IWorkbook workbook = new XSSFWorkbook(fileStream);
+
+                // 选择第一个工作表
+                ISheet sheet = workbook.GetSheetAt(0);
+
+                //获取表头
+                IRow headerRow = sheet.GetRow(0);
+
+
+                for (int col = 0; col < headerRow.LastCellNum; col++)
+                {
+                    // 获取单元格的值
+                    ICell cell = headerRow.GetCell(col);
+                    var property = properties.Where(x => x.GetCustomAttribute<DisplayNameAttribute>().DisplayName == cell.StringCellValue).FirstOrDefault();
+                    if (property is not null && !propHas.Values.Contains(property))
+                    {
+                        propHas[col] = property;
+                    }
+                }
+
+                // 遍历行
+                for (int row = 1; row <= sheet.LastRowNum; row++)
+                {
+                    //一行一个对象
+
+
+                    IRow currentRow = sheet.GetRow(row);
+                    var currentResult = new T();
+                    // 遍历列
+                    for (int col = 0; col < currentRow.LastCellNum; col++)
+                    {
+                        // 获取单元格的值
+                        ICell cell = currentRow.GetCell(col);
+                        string? cellValue = cell.ToString();
+                        object value = cellValue.TrimStart("\"".ToCharArray()).TrimEnd("\"".ToCharArray());
+
+                        value = Convert.ChangeType(cellValue, propHas[col].PropertyType);
+
+
+                        propHas[col].SetValue(currentResult, value);
+
+                    }
+
+                    result.Add(currentResult);
+                }
+            }
+
+            return result;
+        }
+    }
+}
diff --git a/Yi.Furion.Net6/Yi.Framework.Module/Yi.Framework.Module.csproj b/Yi.Furion.Net6/Yi.Framework.Module/Yi.Framework.Module.csproj
index 7c74970e..6f5f3f76 100644
--- a/Yi.Furion.Net6/Yi.Framework.Module/Yi.Framework.Module.csproj
+++ b/Yi.Furion.Net6/Yi.Framework.Module/Yi.Framework.Module.csproj
@@ -23,6 +23,7 @@
 	<ItemGroup>
 		<PackageReference Include="AlibabaCloud.SDK.Dysmsapi20170525" Version="2.0.23" />
 		<PackageReference Include="CSRedisCore" Version="3.8.670" />
+		<PackageReference Include="NPOI" Version="2.6.2" />
 		<PackageReference Include="Portable.BouncyCastle" Version="1.9.0" />
 		<PackageReference Include="SixLabors.ImageSharp" Version="3.0.1" />
 		<PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta15" />