C# 解析Json

Mr_Evans 2010-11-16 02:22:21

0
0 由于对方提供的接口是Json，
以前没有做过这方面的解析
请各位大侠们看看怎么回事

下面是构建Json对象



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Runtime.Serialization.Json;

using System.IO;

using System.Text;

using System.Runtime.Serialization;





namespace WebTest {

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

        protected void Page_Load(object sender, EventArgs e) {

            AjaxPro.Utility.RegisterTypeForAjax(typeof(WebTest._Default), this.Page);

            //indApInfo a = new 

        }



        [AjaxPro.AjaxMethod]

        public string GetJson() {

            List<indApInfo> list = new List<indApInfo>();

            list.Add(new indApInfo { apName = "Name", addressContact = "四川", apType = 1, Email = "wansscncp@126.com", landLine = "xx", Mobile = "davds", postCode = "0" });

            list.Add(new indApInfo { apName = "Name1", addressContact = "成都", apType = 2, Email = "fvdhsa@126.com", landLine = "xx", Mobile = "dsavdsa", postCode = "1" });

            list.Add(new indApInfo { apName = "Name2", addressContact = "西昌", apType = 3, Email = "Emsda@126.com", landLine = "xx", Mobile = "138vds4", postCode = "2" });

            list.Add(new indApInfo { apName = "Name3", addressContact = "南充", apType = 4, Email = "vdseee@126.com", landLine = "xx", Mobile = "vdavdsa", postCode = "3" });

            string result = SerializatorJson.EntityToJson(new indApInfo { apName = "Name3", addressContact = "南充", apType = 4, Email = "vdseee@126.com", landLine = "xx", Mobile = "vdavdsa", postCode = "3" });

            return result;

        }



    }







    [DataContract]

    public class indApInfo {

        [DataMember]

        public string apName { get; set; }

        [DataMember]

        public int apType { get; set; }

        [DataMember]

        public string addressContact { get; set; }

        [DataMember]

        public string postCode { get; set; }

        [DataMember]

        public string Mobile { get; set; }

        [DataMember]

        public string landLine { get; set; }

        [DataMember]

        public string Email { get; set; }

    }

    public static class SerializatorJson {

        public static string EntityToJson<T>(T obj) where T : new() {

            var ds = new DataContractJsonSerializer(typeof(T));

            using (var ms = new MemoryStream()) {

                ds.WriteObject(ms, obj);

                return Encoding.UTF8.GetString(ms.ToArray());

            }

        }



        public static T JsonToEntity<T>(string jsonStr) {

            var ds = new DataContractJsonSerializer(typeof(T));

            var ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonStr));

            var obj = (T)ds.ReadObject(ms);

            ms.Close();

            return obj;

        }



    }





}

这个是HTML调用都没问题



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



<!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>



    <script type="text/javascript">

        function Start() {

            var items = WebTest._Default.GetJson();  // 通过Ajax调用后台代码

            var jstring = '(' + items.value + ')';

            var j = eval(jstring);

            for (var p in j) {

                if (typeof (j[p]) == 'object') {

                    for (var pp in j[p]) {

                        alert(pp + ':' + j[p][pp]);

                    }



                }

            } 

        }

    </script>

</head>

<body>

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

    <div>

        <input type="button" onclick="Start()" value="调用" />

    </div>

    </form>

</body>

</html>

请问下怎么在Winfrom中去解析这个Json对象
并且获得 List<indApInfo>这个集合。

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flyerwing 2010-11-16

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json的字符串呀.

Mr_Evans 2010-11-16

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这个是JS请求获取数据的地方
var items = WebTest._Default.GetJson();

我在Ｃ＃　应该怎么请求？
而且我是在ＷＩｎｆｒｏｍ里面调用
用HttpRequest 去请求？
http://localhost:3739/
参数怎么加？

Mr_Evans 2010-11-16

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[Quote=引用 3 楼 flyerwing 的回复:]
需要下载 Newtonsoft.Json.dll，并引用到项目中
2.0
public static object JsonToObject(string jsonString, object obj)
{
return JavaScriptConvert.DeserializeObject(jsonString, obj.GetType());
}
3.5
publi……
[/Quote]
jsonString　是什么？

flyerwing 2010-11-16

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需要下载 Newtonsoft.Json.dll，并引用到项目中
2.0
public static object JsonToObject(string jsonString, object obj)
{
return JavaScriptConvert.DeserializeObject(jsonString, obj.GetType());
}
3.5
public static object JsonToObject(string jsonString, object obj)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
MemoryStream mStream = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
return serializer.ReadObject(mStream);
}

Mr_Evans 2010-11-16