c#中jeson字符串和OBJECT对象的相互转换

对于本问题我用三步来分别说明实现过程

1、定义一个类—- 实现转换的具体方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Json;namespace Test.JesonTest
{
    public static class JsonHelper
    {
        //定义json操作运算        //将字jeson字符串转换为object对象
        public static T strToObject<T>(string jsonString)
        {
            using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)))
            {
                return (T)new DataContractJsonSerializer(typeof(T)).ReadObject(ms);
            }
        }        //将object对象反序列为jeson字符串
        public static string objectToStr(object jsonObject)
        {
            using (var ms = new MemoryStream())
            {
                new DataContractJsonSerializer(jsonObject.GetType()).WriteObject(ms, jsonObject);
                return Encoding.UTF8.GetString(ms.ToArray());
            }
        }
    }
}

　　说明：首先，当然是项目是3.5+的；必须添加引用：System.Runtime.Serialization 和 System.ServiceModel

2、创建一个OBJECT对象类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;namespace Test.JesonTest
{
    public class Person
    {
        public int id { get; set; }
        public string name { get; set; }
        public int age { get; set; }       public Person() {
           id = ;
           name = "xuhyuan";
           age = ;
        }
    }
}

　　3、具体调用实现实例

　　前台.aspx页面html。

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Testjeson.aspx.cs" Inherits="Test.JesonTest.Testjeson" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <label style="color: Purple">
            将Jeson字符串和Object之间的相互转换实现</label>
        <br />
        <br />
        <br />
        <br />
        <asp:Button ID="but_str_obj" runat="server" Text="将jeson字符串转换为Object"
            onclick="but_str_obj_Click" />
              
        <asp:Button ID="but_obj_str" runat="server" Text="将Object换为jeson字符串转"
            onclick="but_obj_str_Click" />
        <br /><br />
        <asp:textbox ID="txt_resoult" runat="server" Height="207px"
            TextMode="MultiLine" Width="624px"></asp:textbox>
    </div>
    </form>
</body>
</html>

　　c#页面后台代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Script.Serialization;namespace Test.JesonTest
{
    public partial class Testjeson : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {        }        //将jeson字符串转换为object
        protected void but_str_obj_Click(object sender, EventArgs e)
        {
            string str_jeson = txt_resoult.Text.Trim();            if (!string.IsNullOrEmpty(str_jeson))
            {
                List<Person> pes=new List<Person>();
                pes = JsonHelper.strToObject<List<Person>>(str_jeson);
               str_jeson="";
                for (int i = ; i < pes.Count; i++)
                {
                    str_jeson += "id=" + pes[i].id + ";name=" + pes[i].name + ";age=" + pes[i].age + "<br /><br /><br />";
                }
            }            txt_resoult.Text+=str_jeson;
        }        //将object转换为jeson字符串
        protected void but_obj_str_Click(object sender, EventArgs e)
        {
            Person pe = new Person();
            List<Person> pes = new List<Person>();
            pes.Add(pe);
            pes.Add(pe); pes.Add(pe);            //反序列化实现
            string json = JsonHelper.objectToStr(pes);
            txt_resoult.Text = json;            // 序列化----利用js实现
            //JavaScriptSerializer jss = new JavaScriptSerializer();
        }
    }
}

个人收藏笔记记录

开通VIP