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

时间:2021-08-06 16:38:54

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类型(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:

<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 = ;
data.tel = "";
var data1 = {};
data1.name = "Tang";
data1.age = ;
data1.tel = "";
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 > ) { }
}
},
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:

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:

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:

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

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

以上两图可以看到两条数据