添加项目文件。

SamplePre.Common/Helper/XmlSerializerHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Serialization;
+
+namespace SamplePre.Common.Helper
+{
+    /// <summary>
+    /// XML序列化/反序列化工具类（强类型读取）
+    /// </summary>
+    public static class XmlSerializerHelper
+    {
+        /// <summary>
+        /// 从XML文件反序列化为指定类型的对象
+        /// </summary>
+        /// <typeparam name="T">目标实体类型</typeparam>
+        /// <param name="filePath">XML文件路径</param>
+        /// <returns>实体对象</returns>
+        public static T DeserializeFromXml<T>(string filePath) where T : class, new()
+        {
+            // 检查文件是否存在
+            if (!File.Exists(filePath))
+            {
+                throw new FileNotFoundException("XML配置文件不存在", filePath);
+            }
+
+            try
+            {
+                // 初始化序列化器
+                XmlSerializer serializer = new XmlSerializer(typeof(T));
+                // 读取文件并反序列化
+                using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
+                {
+                    return serializer.Deserialize(fs) as T;
+                }
+            }
+            catch (Exception ex)
+            {
+                throw new Exception("XML反序列化失败，检查XML格式和实体类是否匹配", ex);
+            }
+        }
+
+        /// <summary>
+        /// 将对象序列化为XML并保存到文件
+        /// </summary>
+        /// <typeparam name="T">实体类型</typeparam>
+        /// <param name="obj">实体对象</param>
+        /// <param name="filePath">保存路径</param>
+        public static void SerializeToXml<T>(T obj, string filePath) where T : class
+        {
+            if (obj == null)
+            {
+                throw new ArgumentNullException(nameof(obj), "序列化对象不能为null");
+            }
+
+            try
+            {
+                XmlSerializer serializer = new XmlSerializer(typeof(T));
+                // 写入文件（UTF8编码，避免中文乱码）
+                using (StreamWriter sw = new StreamWriter(filePath, false, System.Text.Encoding.UTF8))
+                {
+                    serializer.Serialize(sw, obj);
+                }
+            }
+            catch (Exception ex)
+            {
+                throw new Exception("XML序列化失败", ex);
+            }
+        }
+    }
+}