常用代码之四：创建jason，jason转换为字符串，字符串转换回jason，c#反序列化jason字符串的几个代码片段

时间：2023-12-28 10:13:20

1.创建jason，并JSON.stringify()将之转换为字符串。

直接使用var customer={}, 然后直接customer.属性就可以直接赋值了。

也可以var customer = { CustomerName: CustomerName, CustomerAddress: CustomerAddress } 这样创建，它会自动将:前面的CustomerName视作属性名并加上双引号，并将后面的CustomerName当作属性值，读取变量值后也加上双引号，当然，这不如上面的方式面向对象。

常用代码之四：创建jason，jason转换为字符串，字符串转换回jason，c#反序列化jason字符串的几个代码片段

提交表单前，要使用JSON.stringify()方法将jason对象转换为字符串。

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebAppJason._Default" %>

<head runat="server">

    <title></title>

        <meta http-equiv="X-UA-Compatible" content="IE=9" />

        <script type="text/javascript">

            function abc() {

                var customer = {};

                customer.CustomerName = document.getElementById("CustomerName").value;

                customer.CustomerAddress = document.getElementById("CustomerAddress").value;

                customer = JSON.stringify(customer);

                //alert(customer);

                document.getElementById("customer").value = customer;

            }

    </script>

</head>

<body>

    <form id="form1" runat="server" >

    <div>

        <input type="text" id="CustomerName"  />

        <input type="text" id="CustomerAddress"  />

        <input type="text" id="customer" runat="server" />

        <input type="button" id="button1" value="button1" onclick="abc()"  />

        <asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Button" />

        &nbsp;

        <input type="text" id="CustomerName0" runat="server"  />

        <input type="text" id="CustomerAddress0" runat="server" /></div>

    </form>

</body>

</html>

2.在C#中，引用system.web.extension.dll，并using System.Web.Script.Serialization，然后直接用JavaScriptSerializer的Deserialize方法把字符串反序列化为Customer对象使用了，非常简单方便。

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 WebAppJason

{

    public class Customer {

       public string CustomerName = "";

       public string CustomerAddress = "";

    }

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            string custr = this.customer.Value;

            if (custr != null && custr.Length > )

            {

                JavaScriptSerializer jsc = new JavaScriptSerializer();

                Customer c = jsc.Deserialize<Customer>(custr);

                this.CustomerName0.Value = c.CustomerName;

                this.CustomerAddress0.Value = c.CustomerAddress;

            }

        }

    }

}

3.使用JSON.parse()将字符串转回jason

            function abc() {

                var CustomerName = document.getElementById("CustomerName").value;

                var CustomerAddress = document.getElementById("CustomerAddress").value;

                var customer = {};

                customer.CustomerName = CustomerName;

                customer.CustomerAddress = CustomerAddress;

                customer = JSON.stringify(customer);

                //alert(customer);

                var c2 = JSON.parse(customer);

                alert(c2.CustomerName + " " + c2.CustomerAddress);

                document.getElementById("customer").value = customer;

            }

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