C# xml文档反序列化记事

        private T? XmlDeseriallize<T>(string filePath)         {             XmlSerializer serializer = new XmlSerializer(typeof(T));              using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))             {                 var xmlReader = System.Xml.XmlReader.Create(fileStream);                 var deserializedObject = (T?)serializer.Deserialize(xmlReader);                 return deserializedObject;             }         } 

var udidEntity = XmlDeseriallize<udid>(filePath) 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <udid version="1.0">     <header frequency="daily" id="20240520235039" type="DELTA_INCREMENTAL">         <downloadFilePart>1</downloadFilePart>         <downloadFileTotalParts>1</downloadFileTotalParts>         <numberRkeyecordXML>3480</numberRkeyecordXML>         <numberRecordsDatabase>3480</numberRecordsDatabase>         <creationDate>2024-05-20 23:50:39</creationDate>     </header>     <devices>         <device>             <zxxsdycpbs>06974652782710</zxxsdycpbs>             <cpbsbmtxmc>GS1</cpbsbmtxmc>             <cpbsfbrq>2024-05-20</cpbsfbrq>             <zxxsdyzsydydsl>1</zxxsdyzsydydsl>             <sydycpbs></sydycpbs>             <bszt>一维码</bszt>             <sfyzcbayz>是</sfyzcbayz>             <zcbacpbs></zcbacpbs>             <sfybtzjbs>否</sfybtzjbs>             <btcpbsyzxxsdycpbssfyz></btcpbsyzxxsdycpbssfyz>             <btcpbs></btcpbs>             <cpmctymc>一次性使用吸引活检针及附件</cpmctymc>             <spmc></spmc>             <ggxh>CLA2505</ggxh>             <sfwblztlcp>否</sfwblztlcp>             <cpms>吸引活检针25G×50mm</cpms>             <cphhhbh>202710</cphhhbh>             <yflbm></yflbm>             <qxlb>器械</qxlb>             <flbm>14-01-09</flbm>             <tyshxydm>91430300MA4RGKD89R</tyshxydm>             <zczbhhzbapzbh>湘械注准20222141907</zczbhhzbapzbh>             <ylqxzcrbarmc>湖南省拓川医疗科技有限公司</ylqxzcrbarmc>             <ylqxzcrbarywmc></ylqxzcrbarywmc>             <ybbm>C01060200700003149010000032</ybbm>             <cplb>耗材</cplb>             <cgzmraqxgxx>说明书或标签上面不包含MR安全性信息</cgzmraqxgxx>             <sfbjwycxsy>是</sfbjwycxsy>             <zdcfsycs></zdcfsycs>             <sfwwjbz>是</sfwwjbz>             <syqsfxyjxmj>否</syqsfxyjxmj>             <mjfs></mjfs>             <qtxxdwzlj></qtxxdwzlj>             <tsrq></tsrq>             <scbssfbhph>是</scbssfbhph>             <scbssfbhxlh>否</scbssfbhxlh>             <scbssfbhscrq>是</scbssfbhscrq>             <scbssfbhsxrq>是</scbssfbhsxrq>             <tscchcztj>本产品应贮存在通风良好、无腐蚀性气体、清洁的环境内。储存温度范围为0℃至30℃，相对湿度不超过85%。本产品应使用无腐蚀性气体、对产品无污染的运输工具运输，严禁日晒雨淋，搬运时应注意防止包装破损。</tscchcztj>             <tsccsm></tsccsm>             <deviceRecordKey>069746527827102024042904331816</deviceRecordKey>             <versionNumber>1</versionNumber>             <versionTime>2024-05-20</versionTime>             <versionStauts>新增</versionStauts>             <correctionNumber>0</correctionNumber>             <correctionRemark></correctionRemark>             <correctionTime></correctionTime>         </device>         <device>             <zxxsdycpbs>06931450103406</zxxsdycpbs>             <cpbsbmtxmc>GS1</cpbsbmtxmc>             <cpbsfbrq>2024-05-20</cpbsfbrq>             <zxxsdyzsydydsl>1</zxxsdyzsydydsl>             <sydycpbs></sydycpbs>             <bszt>一维码,二维码,RFID</bszt>             <sfyzcbayz>是</sfyzcbayz>             <zcbacpbs></zcbacpbs>             <sfybtzjbs>否</sfybtzjbs>             <btcpbsyzxxsdycpbssfyz></btcpbsyzxxsdycpbssfyz>             <btcpbs></btcpbs>             <cpmctymc>定制式活动义齿</cpmctymc>             <spmc></spmc>             <ggxh>钴铬钼支架可摘全口义齿 1402040900</ggxh>             <sfwblztlcp>否</sfwblztlcp>             <cpms>由合成树脂牙、卡环、树脂基托及连接体组成</cpms>             <cphhhbh></cphhhbh>             <yflbm></yflbm>             <qxlb>器械</qxlb>             <flbm>17-06-04</flbm>             <tyshxydm>91441900675189913A</tyshxydm>             <zczbhhzbapzbh>粤械注准20152171212</zczbhhzbapzbh>             <ylqxzcrbarmc>东莞市帕菲克义齿科技有限公司</ylqxzcrbarmc>             <ylqxzcrbarywmc></ylqxzcrbarywmc>             <ybbm></ybbm>             <cplb>耗材</cplb>             <cgzmraqxgxx>说明书或标签上面不包含MR安全性信息</cgzmraqxgxx>             <sfbjwycxsy>否</sfbjwycxsy>             <zdcfsycs></zdcfsycs>             <sfwwjbz>否</sfwwjbz>             <syqsfxyjxmj>否</syqsfxyjxmj>             <mjfs></mjfs>             <qtxxdwzlj></qtxxdwzlj>             <tsrq></tsrq>             <scbssfbhph>是</scbssfbhph>             <scbssfbhxlh>是</scbssfbhxlh>             <scbssfbhscrq>是</scbssfbhscrq>             <scbssfbhsxrq>否</scbssfbhsxrq>             <tscchcztj></tscchcztj>             <tsccsm></tsccsm>             <deviceRecordKey>0693145010340620240518045505448</deviceRecordKey>             <versionNumber>1</versionNumber>             <versionTime>2024-05-20</versionTime>             <versionStauts>新增</versionStauts>             <correctionNumber>0</correctionNumber>             <correctionRemark></correctionRemark>             <correctionTime></correctionTime>             <contactList>                 <contact>                     <qylxrcz></qylxrcz>                     <qylxryx>2074662804@qq.com</qylxryx>                     <qylxrdh>0769-85160532</qylxrdh>                 </contact>             </contactList>         </device>     </devices> </udid> 

    //为从XML反序列化来而做准备     public class udid     {         public header header { get; set; } = new();         [XmlArrayItem("device")]//序列化反序列化时，当DeviceInfoDto对应的xml中元素的名字不是DeviceInfoDto而是device时，用该特性指定类型DeviceInfoDto对应的在xml中的元素的名字device。如果不这么做，则需要变能，改以下代码中List<DeviceInfoDto>为List<device>其中device为一个继承自DeviceInfoDto类型的子类         public List<DeviceInfoDto> devices { get; set; } = new();     }     public class header     {         [XmlAttribute("frequency")]         public string Frequency { get; set; } = string.Empty;         [XmlAttribute("id")]         public string Id { get; set; } = string.Empty;         [XmlAttribute("type")]         public string Type { get; set; } = string.Empty;         public int downloadFilePart { get; set; }         public int downloadFileTotalParts { get; set; }         public int numberRkeyecordXML { get; set; }         public int numberRecordsDatabase { get; set; }          #region 当直接使用一个类型为Datetime属性名为creationDate来在反序列化xml文件中的日期时间类型的接收者时，反序列化会报错：【字符串“2020-07-31 09:29:16”不是有效的AllXsd值】。于是采入引入一个中间属性stringCreationDate（类型为string）和存储其值的字段_creationDate(类型为DateTime)的方式，运行过程1.当反序列化时从xml文件读取元素名为creationDate的元素值并通过stringCreationDate的set访问器将其值在转值为DateTime类型后存放于字段_creationDate中 2.当C#代码中其他地方要访问这个值时，就从creationDate属性的get访问器传递出_creationDate字段的值。缺点：需引入不必要的属性和字段，而且属性名还必须是public的，这会让外部访问者对这个中间属性感到疑惑。         private DateTime _creationDate;         [XmlElement(ElementName = "creationDate")]         public string stringCreationDate { get => _creationDate.ToString("yyyy-MM-dd HH:mm:ss"); set => _creationDate = Convert.ToDateTime(value); }         [XmlIgnore]         public DateTime creationDate { get => _creationDate; }         #endregion     }       public class DeviceInfoDto     {          [XmlElement("cpmctymc")]//用来在做xml反序列化时，指定本属性对应到xml文件中的标签的名字。（注意还有一个是XmlAttribute它是指对应到xml标签的属性名字）         public string CPMCTYMC { get; set; }          [XmlElement("spmc")]         public string SPMC { get; set; }          [XmlElement("ggxh")]         public string GGXH { get; set; }          [XmlElement("cpms")]         public string CPMS { get; set; }          [XmlElement("tyshxydm")]         public string TYSHXYDM { get; set; }          [XmlElement("flbm")]         public string CategoryCode { get; set; }          [XmlElement("deviceRecordKey")]         public string deviceRecordKey { get; set; }          [XmlElement("versionTime")]         public DateTime versionTime { get; set; }          [XmlElement("zxxsdycpbs")]         public string DI { get; set; }          [XmlElement("cpbsbmtxmc")]         public string DeviceCodeType { get; set; }          [XmlElement("ylqxzcrbarmc")]         public string Manufacturer { get; set; }          [XmlElement("ylqxzcrbarywmc")]         public string EnManufacturer { get; set; }          [XmlElement("zczbhhzbapzbh")]         public string RegistrationCertificateNo { get; set; }          [XmlElement("versionStauts")]         public string versionStauts { get; set; }     }