JSON.stringify实例应用—将对象转换成JSON类型进行AJAX异步传值

在上一篇中,对JSON.stringify()方法有了初步的认识,并且做了一些简单的例子。本篇将进一步将JSON.stringify用在复杂些的实例中,例如如下需求:

在进jQuery AJAX异步传值时,用JSON.stringify()函数将数组转换成(JSON:JavaScript Object Notation 是一种轻量级的数据交换格式,采用完全独立于语言的文本格式,是理想的数据交换格式),再传到一般处理程序中,在一般处理程序中,把得到的值进行反序列化Deserialize<T>(value)操作。

 

1.html代码:

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<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <script src="js/jquery-1.8.2.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $("#btn").click(function () {
                var myArray = new Array();
                var data = {};
                data.name = "Tom";
                data.age = 25;
                data.tel = "123456";
                var data1 = {};
                data1.name = "Tang";
                data1.age = 27;
                data1.tel = "987654";
                myArray.push(data);
                myArray.push(data1);
                //alert(JSON.stringify(array));

                var params = {};
                params.action = "OperationArray";
                params.array = JSON.stringify(myArray);
                $.ajax({
                    url: "JSONstringify.ashx",
                    data: params,
                    type: "POST",
                    dataType: "json",
                    success: function (msg) {
                        if (msg.OperateResult == "success") {
                            if (msg.ResponseData.length > 0) {
                                
                            }
                        }
                    },
                    error: function (e) {
                        alert("请求处理出错");
                    }
                });
            });
        });
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <input type="button" id="btn" value="确定" />
    </form>
</body>
</html>
html代码

2.一般处理程序代码:

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Script.Serialization;

namespace JSONstringfy
{
    /// <summary>
    /// JSONstringify 的摘要说明
    /// </summary>
    public class JSONstringify : IHttpHandler
    {
        private JavaScriptSerializer json = new JavaScriptSerializer();
        private string operateSuccess = "success";
        private string operateFailed = "false";
        public void ProcessRequest(HttpContext context)
        {
            string jsonObject = string.Empty;
            string action = context.Request["action"];
            context.Response.ContentType = "application/json;charset=utf-8";
            if (action == "OperationArray")
                jsonObject = OperationArray(context);

            context.Response.Write(jsonObject);
        }

        private string OperationArray(HttpContext context)
        {
            try
            {               
                var array = context.Request["array"];
                var arrayList = json.Deserialize<List<JSON_user>>(array);//反序列化,得到集合

                foreach (var list in arrayList)
                {
                    //这里可以获得数据,可以和数据库进行交互,传到前台,
                    //本例子这里省略
                }

                return json.Serialize(new { OperateResult = operateSuccess });
            }
            catch (Exception e)
            {
                return json.Serialize(new { OperateResult = operateFailed, ResponseData = e.Message });
            }
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}
ashx代码

3.JSON_user类:

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace JSONstringfy
{
    public class JSON_user
    {
        public string Name { get; set; }

        public string Age { get; set; }

        public string Tel { get; set; }
    }
}
JSON_user

4.调试结果:

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以上两图可以看到两条数据

 

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