前言
最近在編寫一篇關于標準Mes接口框架的文章。其中有一個非常需要考究的內容時如果實現數據靈活和可使用性強。因為考慮數據靈活性,所以我一開始選取了Object類型作為數據類型,Object作為數據Value字段,String作為數據Key字段,形態與Dic的模式比較相似。但是在實際使用過程中,由于Object可以存儲任意類型,但是顯性類型指向Object,Type指向數據源類型。但是在進行Xml和Json序列化時候就出現了問題,Json和Xml無法序列化Object,這個非常合理,因為Object類型是沒有指向的,序列化和反序列化時,無法知道你的Object類型指向哪一種類型。因為這個原因,所以我自己根據Json和XMl的數據格式編寫了一套序列化和反序列化的規則。
1.方法說明
我預先設計了一個為MesProcessData的類,他里面包含一個string的索引字段,和Object的存儲字段。那么我Object字段中存儲的時一組新的MesProcessData的數組,在每個新的MesProcessData中又可以存儲新的數據或者數組。這個方式參考來自于C#的索引機制。C# 中 . 運算符主要用于訪問類或對象的成員、命名空間中的類型,對象的名字代表的是每一級的索引。那么MesName就是我所屬變量的索引,object就是索引的值。在類型判斷中,我們可以通過判斷Object的Type是否為Array的形式去判斷Object是否存儲的是MesProcessData的類對象,如果是則繼續遞歸查找,如果不是則判斷當前的MesName是否是我所需要的索引。這些內容說的非常繞口,所以下面實際使用代碼演示一下
2.使用方式
//將數據為Header,Body,Return的數據存儲在Top中List<MesProcessData> Message = new List<MesProcessData>();List<MesProcessData> Head = new List<MesProcessData>();Head.Add(new MesProcessData { MesName = "MESSAGENAME", MesValue = dynamic.AddressInterface });Head.Add(new MesProcessData { MesName = "TRANSACTIONID", MesValue = MesApp.Instance.Const.NowTime.ToString("yyyyMMddHHmmssffff") + number });Head.Add(new MesProcessData { MesName = "MESSAGEID", MesValue = number.ToString() });Head.Add(new MesProcessData { MesName = "REPLYSUBJECTNAME", MesValue = MesApp.Instance.MyMesConfig.MesAddress + ":" + MesApp.Instance.MyMesConfig.CustomerA.Port });Message.Add(new MesProcessData { MesName = "Header", MesValue = Head.ToArray() });Message.Add(new MesProcessData { MesName = "Body", MesValue = datas.ToArray() });List<MesProcessData> MessageReturn = new List<MesProcessData>();MessageReturn.Add(new MesProcessData { MesName = "ReturnCode", MesValue = "" });MessageReturn.Add(new MesProcessData { MesName = "ReturnMessage", MesValue = "" });Message.Add(new MesProcessData { MesName = "Return", MesValue = MessageReturn.ToArray() });MesProcessData Top = new MesProcessData();Top.MesName = "Message";Top.MesValue = Message.ToArray();
//根據上面代碼存入的數據,查找數據中索引為Header.MESSAGENAME的值
string MesInterface = ProcessData.FindValueByPath(new string[] { "Header", "MESSAGENAME" }, 0).ToString();
using System;
using System.Collections.Generic;
using System.Linq;namespace Const
{public class MesProcessData{public string MesName { get; set; } = "";public object MesValue { get; set; }/// <summary>/// 根據指定路徑找到對應的值/// </summary>/// <param name="path">數組路徑,從下一級參數開始</param>/// <param name="index">當前使用的路徑開始編號。僅在函數遞歸時使用</param>/// <returns></returns>public object FindValueByPath(string[] path, int index = 0){if (index >= path.Length){return this.MesValue;}if (this.MesValue is Array){Array array = this.MesValue as Array;List<MesProcessData> datas = array.OfType<MesProcessData>().ToList();foreach (MesProcessData child in datas){if (child.MesName == path[index]){return child.FindValueByPath(path, index + 1);}}}return null;}/// <summary>/// 根據指定路徑來修改參數值/// </summary>/// <param name="path">數組路徑,從下一級參數開始</param>/// <param name="newValue">新的值</param>/// <param name="index">當前使用的路徑開始編號。僅在函數遞歸時使用 </param>/// <returns></returns>public MesProcessData ModifyValueByPath(string[] path, object newValue, int index = 0){if (index >= path.Length){this.MesValue = newValue;return this;}if (this.MesValue is Array array){List<MesProcessData> datas = array.OfType<MesProcessData>().ToList();foreach (MesProcessData child in datas){if (child.MesName == path[index]){// 遞歸修改下一級節點child.ModifyValueByPath(path, newValue, index + 1);}}}return this;}public string ObjectToString(){if (this.MesValue is string strArray){return strArray;}else{return null;}}public List<MesProcessData> ObjectToData(){List<MesProcessData> datas = new List<MesProcessData>();if (this.MesValue is Array){Array array = this.MesValue as Array;datas = array.OfType<MesProcessData>().ToList();}return datas;}}}
3.序列化和反序列化
參照上面的內容我們可以分析,當判斷為數組時,我們進行遞歸,直到遞歸到沒有數組值為止,那么Name作為Key,MesValue作為Value。
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;namespace Model
{internal class MesJson{public static T DeserializeObject<T>(string json){return JsonConvert.DeserializeObject<T>(json);}public static string SerializeObject<T>(T Data){return JsonConvert.SerializeObject(Data);}/// <summary>/// 反序列化為 MesProcessData/// </summary>/// <param name="Json"></param>/// <returns></returns>public static MesProcessData DeserializeJson(string Json){// 解析 JSON 字符串為 JObjectJObject jsonObject = JObject.Parse(Json);MesProcessData data = new MesProcessData();// 開始遍歷解析 JSON 對象data = TraverseJsonNodes(jsonObject);return data;}private static MesProcessData TraverseJsonNodes(JObject jsonObject){MesProcessData data = new MesProcessData();data.MesName = jsonObject.Path;if (jsonObject.Count == 1){data.MesValue = jsonObject.First.ToString();}List<MesProcessData> datas = new List<MesProcessData>();foreach (var item in jsonObject){if (item.Value.Type == JTokenType.String){MesProcessData Jdata = new MesProcessData();Jdata.MesName = item.Key.ToString();Jdata.MesValue = item.Value.ToString();datas.Add(Jdata);}elsedatas.Add(TraverseJsonNodes((JObject)item.Value));}data.MesValue = datas.ToArray();return data;}private static readonly object Lock = new object();/// <summary>/// 將傳入的 Object 對象序列化為 JSON 格式/// </summary>/// <param name="obj"></param>/// <returns></returns>public static string SerializeToJson(object obj){try{lock (Lock){StringBuilder sb = new StringBuilder();SerializeObject(obj, sb);return sb.ToString();}}catch (Exception ex){MesLog.Error("Mes Json序列化失敗:" + ex.ToString());return "";}}private static void SerializeObject(object obj, StringBuilder sb){if (obj == null){sb.Append("null");return;}Type type = obj.GetType();if (type.IsPrimitive || type == typeof(string)){sb.Append(JsonValue(obj));return;}if (type.IsArray){sb.Append("[");Array array = (Array)obj;for (int i = 0; i < array.Length; i++){if (i > 0){sb.Append(",");}SerializeObject(array.GetValue(i), sb);}sb.Append("]");return;}sb.Append("{");sb.AppendLine();FieldInfo[] fields = type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);bool first = true;foreach (FieldInfo field in fields){object fieldValue = field.GetValue(obj);if (fieldValue == null){continue;}if (!first){sb.Append(",");sb.AppendLine();}first = false;sb.Append($"\"{field.Name}\": ");SerializeObject(fieldValue, sb);}sb.AppendLine();sb.Append("}");}private static string JsonValue(object obj){if (obj == null){return "null";}if (obj is string str){return $"\"{EscapeString(str)}\"";}if (obj is bool boolValue){return boolValue.ToString().ToLower();}if (obj is char){return $"\"{obj}\"";}return obj.ToString();}private static string EscapeString(string str){StringBuilder sb = new StringBuilder();foreach (char c in str){if (c == '\\' || c == '"'){sb.Append('\\');}sb.Append(c);}return sb.ToString();}}
}
using JOJO.Mes.Const;
using JOJO.Mes.Log;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Sockets;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
using System.Xml.Serialization;namespace JOJO.Mes.Model
{internal class MesXml{/// <summary>/// 不帶反饋的發送信息/// </summary>/// <param name="socket"></param>/// <param name="obj"></param>public static async void SendObjectAsXml(Socket socket, string xmlString){try{byte[] xmlBytes = Encoding.UTF8.GetBytes(xmlString);await Task.Run(() =>{// 通過Socket發送數據socket.Send(xmlBytes, 0, xmlBytes.Length, SocketFlags.None);});}catch (Exception ex){MesLog.Error("發送不帶反饋的Socket數據失敗:" + ex.ToString());}}public static T DeserializeObject<T>(string Xml){XmlSerializer serializer = new XmlSerializer(typeof(T));StringReader stringReader = new StringReader(Xml);T deserializedData = (T)serializer.Deserialize(stringReader);stringReader.Dispose();return deserializedData;}/// <summary>/// 反序列化為MesProcessData/// </summary>/// <param name="Xml"></param>/// <returns></returns>public static MesProcessData DeserializeXml(string Xml){XmlDocument xmlDoc = new XmlDocument();xmlDoc.LoadXml(Xml);MesProcessData data = new MesProcessData();data = TraverseNodes(xmlDoc.DocumentElement);return data;}static MesProcessData TraverseNodes(XmlNode node){MesProcessData data1 = new MesProcessData();data1.MesName = node.Name;if (node.HasChildNodes){if (node.FirstChild.NodeType == XmlNodeType.Text){data1.MesValue = node.InnerText;return data1;}List<object> datas = new List<object>();foreach (XmlNode childNode in node.ChildNodes){datas.Add(TraverseNodes(childNode));}data1.MesValue = datas.ToArray();}else{data1.MesValue = node.InnerText;}return data1;}private static readonly object Lock = new object();/// <summary>/// 將傳入的Object對象序列化為XML格式/// </summary>/// <param name="obj"></param>/// <returns></returns>public static string SerializeToXml(object obj){try{lock (Lock){StringWriter stringWriter = new StringWriter();using (XmlWriter xmlWriter = XmlWriter.Create(stringWriter)){//添加輸入對象的頭,xmlWriter.WriteStartDocument();FieldInfo[] fields = obj.GetType().GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);foreach (FieldInfo field in fields){object fieldValue = field.GetValue(obj);string fieldName = field.Name;if (fieldValue != null){Type valueType = fieldValue.GetType();if (valueType.IsPrimitive || valueType == typeof(string) || !valueType.IsArray){if (field.Name.Contains("MesValue")){xmlWriter.WriteValue(fieldValue);}else if (field.Name.Contains("MesName")){xmlWriter.WriteStartElement(fieldValue.ToString());continue;}else{xmlWriter.WriteStartElement(field.FieldType.Name.ToString());xmlWriter.WriteValue(fieldValue);xmlWriter.WriteEndElement();continue;}xmlWriter.WriteEndElement();}else if (valueType.IsArray){Array array = (Array)fieldValue;foreach (object item in array){if (item != null){string subXml = SerializeToXml(item);xmlWriter.WriteRaw(subXml);}}}else{string subXml = SerializeToXml(fieldValue);xmlWriter.WriteRaw(subXml);string xml = xmlWriter.ToString();}}}//xmlWriter.WriteEndElement();xmlWriter.WriteEndDocument();}return stringWriter.ToString();}}catch (Exception ex){MesLog.Error("序列化XML失敗:" + ex.ToString());return "";}}private static XElement RecursiveProcess(XElement element){List<XElement> newChildren = new List<XElement>();foreach (XElement child in element.Elements()){XElement name = child.Element("MesName");XElement value = child.Element("MesValue");if (name != null && value != null){XElement newElement;if (value.HasElements){// 如果Value有子元素,遞歸處理XElement processedValue = RecursiveProcess(value);newElement = new XElement(name.Value, processedValue.Nodes());}else{newElement = new XElement(name.Value, value.Value);}newChildren.Add(newElement);}else{if (child.Nodes().Count() > 1){// 如果沒有Name和Value,繼續遞歸處理子元素XElement recursivelyProcessedChild = RecursiveProcess(child);newChildren.Add(recursivelyProcessedChild);}else{newChildren.Add(child);}}}element.RemoveAll();element.Add(newChildren);return element;}}}
4.結論
這種方式限定了數據的規則,但是核心原理是一致的。在序列化中,對于可讀序列化而言,只有值和數組值的區分。所以我們在控制Object類型序列化時也是參考這個方式,判斷是否為數組即可,如果數據格式跟我的不一樣的話,那么可以使用反射的形式。例如在一個類中有部分字段為Object類型,那么我們使用反射的形式,將json映射Object中,同樣我們也需要判斷Json中的Object是否為數組,不是可以直接賦值,是的話則需要遞歸轉換再賦值。將字段中的Object轉換為Json也是同理,判斷是否為數組,不是則直接轉換,是則遞歸轉換。