数据保存

1. XML反序列读取(只存储有标记的属性)

点击查看代码

public static class Util
    {
        public static void SerializeToXml<T>(T objectToSerialize, string path)
        {
            try
            {
                // 创建 DataContractSerializer 实例  
                DataContractSerializer serializer = new DataContractSerializer(typeof(T));

                var dir = Path.GetDirectoryName(path);
                Directory.CreateDirectory(dir);

                using (MemoryStream ms = new MemoryStream())
                {
                    using (XmlWriter writer = XmlWriter.Create(ms, new XmlWriterSettings { Encoding = Encoding.UTF8 }))
                    {
                        serializer.WriteObject(writer, objectToSerialize);
                    }

                    ms.Seek(0, SeekOrigin.Begin); // 重置流的位置到开头

                    using (XmlReader reader = XmlReader.Create(ms))
                    {
                        // 使用XDocument作为中间步骤来加载XML，然后转换为XmlDocument
                        XDocument xDoc = XDocument.Load(reader);
                        XmlDocument xmlDoc = new XmlDocument();
                        xmlDoc.Load(xDoc.CreateReader());
                        if (File.Exists(path))
                        {
                            File.Delete(path);
                        }
                        xmlDoc.Save(path);
                    }
                }
            }
            catch (Exception ex)
            {

                throw new Exception($"Fail To Save, [{path}]。", ex);
            }
        }

        public static T DeserializeFromXml<T>(string path)
        {
            try
            {
                // 创建 DataContractSerializer 实例  
                DataContractSerializer serializer = new DataContractSerializer(typeof(T));

                // 反序列化 XML 为 MyClass 对象（可选）  
                T deserializedObject;
                using (XmlReader reader = XmlReader.Create(path))
                {
                    deserializedObject = (T)serializer.ReadObject(reader);
                }

                return deserializedObject;
            }
            catch (Exception ex)
            {

                throw new Exception($"Fail To Deserialize, [{path}]。", ex);
            }
        }

    }

用法

点击查看代码

[DataContract]
    public class Heater
    {
        [DataMember]
        public double TargetTemperature { get; set; }
        [DataMember]
        public bool Enable { get; set; } = true;
    }
	
	[DataContract]
    public class HeaterManager
    {
        private readonly List<IHeater> heaters;
        private readonly string savePath;

        public HeaterManager(IHeater[] heaters)
        {
            this.heaters = new List<IHeater>(heaters);
            this._alarmBus = alarmBus;
            this.log = LogManager.GetLogger("OperationLogger");
            this.savePath = Path.Combine(PathManager.DataProjectPath, $"Heaters.xml");
            if (File.Exists(this.savePath))
            {
                var hm = Domain.Util.DeserializeFromXml<HeaterManager>(this.savePath);
                var heaterDatas = hm.HeaterDatas;
                foreach (var heater in heaters)
                {
                    var data = heaterDatas.Find(x => x.Name == heater.Name);
                    if (data != null)
                    {
                        heater.TargetTemperature = data.TargetTemperature;
                    }
                }
            }
            else
            {
                this.HeaterDatas = new List<Heater>();
                foreach (var heater in heaters)
                {
                    this.HeaterDatas.Add(heater as Heater);
                }
                this.Save();
            }
        }

        [DataMember]
        public List<Heater> HeaterDatas { get; set; }

        public IEnumerable<IHeater> Heaters => this.heaters;
        public void Save()
        {
            Util.SerializeToXml(this, this.savePath);
        }
    }

2、XML反序列读取(列表类中所有属性保存)

点击查看代码

public class Class_to_xml
    {
        //实体类转换XML，xml序列化
        public static string XmlSerialize<T>(T obj)
        {
            using (StringWriter sw = new StringWriter())
            {
                Type t = obj.GetType();
                XmlSerializer serializer = new XmlSerializer(obj.GetType());
                serializer.Serialize(sw, obj);
                sw.Close();
                return sw.ToString();
            }
        }
        //xml反序列化
        public static T DESerializer<T>(string strXML) where T : class
        {
            try
            {
                using (StringReader sr = new StringReader(strXML))
                {
                    XmlSerializer serializer = new XmlSerializer(typeof(T));
                    return serializer.Deserialize(sr) as T;
                }
            }
            catch (Exception ex)
            {
                return null;
            }
        }
    }

用法

点击查看代码

 #region 列表集合
             //测试集合
             List<Student> list = new List<Student>()
            {
                    new Student(){Id=1,Name="小红",Sex='2',Age=20},
                    new Student(){Id=2,Name="小明",Sex='1',Age=22},
                    new Student(){Id=3,Name="小王",Sex='1',Age=19},
                    new Student(){Id=4,Name="测试",Sex='2',Age=23}
            };
             //序列化为xml
             string strXML = Class_to_xml.XmlSerialize<List<Student>>(list);
             Console.Write(strxml);

             //反序列化为list
             List<Student> listStu = Class_to_xml.DESerializer<List<Student>>(strXML);
             foreach (var item in listStu)
             {
                 Console.WriteLine(item.Age);
             }
             #endregion