Summary of conversion methods between .net entity classes and json
This time I will bring you a summary of the conversion methods between .net entity classes and json. What are the precautions for converting .net entity classes and json. The following is a practical case, let's take a look.
When converting between .net entity classes and json, pay attention to the following points:
1. References added when writing jsonhelp. System.Runtime.Serialization.Json;
2. The entity class needs to be declared as public
jsonhelp code:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Runtime.Serialization.Json; using System.IO; namespace JsonTest { class JsonHelp { public JsonHelp() { // // TODO: Add constructor logic here // } /// <summary> /// 把对象序列化 JSON 字符串 /// </summary> /// <typeparam>对象类型</typeparam> /// <param>对象实体 /// <returns>JSON字符串</returns> public static string GetJson<t>(T obj) { //记住 添加引用 System.ServiceModel.Web /** * 如果不添加上面的引用,System.Runtime.Serialization.Json; Json是出不来的哦 * */ DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T)); using (MemoryStream ms = new MemoryStream()) { json.WriteObject(ms, obj); string szJson = Encoding.UTF8.GetString(ms.ToArray()); return szJson; } } /// <summary> /// 把JSON字符串还原为对象 /// </summary> /// <typeparam>对象类型</typeparam> /// <param>JSON字符串 /// <returns>对象实体</returns> public static T ParseFormJson<t>(string szJson) { T obj = Activator.CreateInstance<t>(); using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes(szJson))) { DataContractJsonSerializer dcj = new DataContractJsonSerializer(typeof(T)); return (T)dcj.ReadObject(ms); } } } }</t></t></t>
Entity class code:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace JsonTest { public class testData { public testData() { } public int Id { get; set; } public string Name { get; set; } public string Sex { get; set; } } }
Console application test code:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace JsonTest { class Program { static void Main(string[] args) { //实体类转json testData t1 = new testData(); t1.Id = 1; t1.Name = "001姓名"; t1.Sex = "男"; testData t2 = new testData(); t2.Id = 2; t2.Name = "002姓名"; t2.Sex = "男"; testData t3 = new testData(); t3.Id = 3; t3.Name = "003姓名"; t3.Sex = "男"; List<testdata> tlist = new List<testdata>(); tlist.Add(t1); tlist.Add(t2); tlist.Add(t3); Console.WriteLine(JsonHelp.GetJson<list>>(tlist)); // Console.ReadKey(); //json转实体类 List<testdata> tl = JsonHelp.ParseFormJson <list>>(JsonHelp.GetJson<list>>(tlist)); Console.WriteLine(tl.Count); Console.WriteLine(tl[0].Name); Console.ReadKey(); } } }</list></list></testdata></list></testdata></testdata>
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website !
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