C # saving generic classes with json for Object Instantiation can easily save program settings,

C # saving generic classes with json for Object Instantiation can easily save program settings,

Reference page:

Http://www.yuanjiaocheng.net/webapi/test-webapi.html

Http://www.yuanjiaocheng.net/webapi/web-api-controller.html

Http://www.yuanjiaocheng.net/webapi/config-webapi.html

Http://www.yuanjiaocheng.net/webapi/web-api-route.html

Http://www.yuanjiaocheng.net/webapi/parameter-binding.html

It is used for permanent objects. Any program can be used and it depends on NewtonSoft. Used for json serialization and deserialization.

1 using Newtonsoft. json; 2 using System; 3 using System. collections. generic; 4 using System. IO; 5 using System. linq; 6 using System. text; 7 using System. threading. tasks; 8 9 namespace ConfigHandler10 {11 public class ConfigHandler <T> 12 where T: class13 {14 const string SAVE_PATH = "jsonconfig /"; 15 /// <summary> 16 // Singleton mode 17 /// </summary> 18 static T config; 19 private ConfigHandler () 20 {21 22} 23/ // <Summary> 24 // get the Save address, the default type is generic parameter T. The type name is 25 /// </summary> 26 /// <returns> </returns> 27 private static string GetSavePath () 28 {29 if (! Directory. exists (SAVE_PATH) 30 {31 Directory. createDirectory (SAVE_PATH); 32} 33 return $ "{SAVE_PATH} {typeof (T ). toString ()}. json "; 34} 35 // <summary> 36 // Save configuration 37 // </summary> 38 public static void Save (T _ config) 39 {40 config = _ config; 41 string json = JsonConvert. serializeObject (_ config); 42 try43 {44 using (var sw = new StreamWriter (GetSavePath () 45 {46 sw. writeAsync (json); 47} 48 49} 50 catch (E Xception) 51 {52 throw; 53} 54} 55 // <summary> 56 // obtain configuration information 57 // </summary> 58 // <returns> </returns> 59 public static T Load () 60 {61 if (config = null) 62 {63 string json = ""; 64 try65 {66 using (var sr = new StreamReader (GetSavePath ())) 67 {68 json = sr. readToEnd (); 69 if (json! = "") 70 {71 config = JsonConvert. deserializeObject <T> (json); 72} 73 else74 {75 config = null; 76} 77} 78} 79 catch (Exception) 80 {81 config = null; 82} 83} 84 return config; 85} 86 87} 88 89 90}

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Demo:

using ConfigHandler;using ConsoleApplication1;using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {            MyConfig config = new MyConfig();            config = new MyConfig();            config.name = "leiming";            config.Age = 20;            config.Time = DateTime.Now;            ConfigHandler<MyConfig>.Save(config);            config = ConfigHandler<MyConfig>.Load();            Console.WriteLine(config.ToString());            Console.ReadKey();        }    }    class MyConfig    {        public int Hello{get;set;}        public string name { get; set; }        public int Age { get; set; }        public DateTime Time { get; set; }        public override string ToString()        {            return $"Name={name},Age={Age},Time={Time.ToShortDateString()}";        }    }}

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