ASP.NET自带对象JSON字符串与实体类的转换_实用技巧_

 using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Runtime.Serialization.Json; using System.ServiceModel.Web;///记得引用这个命名空间 using System.IO; using System.Text; /// 
 /// Summary description for JsonHelper /// 
 public class JsonHelper { public JsonHelper() { // // TODO: Add constructor logic here // } /// 
 /// 把对象序列化 JSON 字符串 /// 
 /// 对象类型 /// 对象实体 /// JSON字符串 public static string GetJson(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; } } /// 
 /// 把JSON字符串还原为对象 /// 
 /// 对象类型 /// JSON字符串 /// 对象实体 public static T ParseFormJson(string szJson) { T obj = Activator.CreateInstance(); using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes(szJson))) { DataContractJsonSerializer dcj = new DataContractJsonSerializer(typeof(T)); return (T)dcj.ReadObject(ms); } } } 

 public class TestData { public TestData() { } public int Id { get; set; } public string Name { get; set; } public string Sex { get; set; } } 

<%@ Page Language="C#" %>