c#如何解析json字符串

[love_rrr]

最近在做一个小东西,前台准备用flex,后台用c#.
现在有一个问题.前台有一个ArrayCollection经encode后生成json字符串,把字符串传给c#服务器端,大概格式如下所示:
{"0":{"gold":"5","name":"a","silver":"c"},"1":{"gold":"0","name":"b","silver":"d"}}
请问如何在c#中把这段json字符串解析成对象数组,或者对象集合
附上类:
public struct Person
{

public string gold { get; set; }
public string name { get; set; }
public string silver { get; set; }
}
希望答案越详细越好,有正确答案,马上给分.

[yankunlin]

up

[gongsun]

...

[love_rrr]

自己再顶一个

[Ricercar]

Dictionary<string, object> dict = (Dictionary<string, object>)(json);

[wszhoho]

Newtonsoft.Json.dll

[sh_suyuelin]

关注下～

[xiaoxin4321]

public  void GetPerson(string _JsonText)

 List<Person> Ps = new List<Person >();
            DataContractJsonSerializer _Json = new DataContractJsonSerializer(Pro.GetType());
            byte[] _Using = System.Text.Encoding.UTF8.GetBytes(_JsonText);
            System.IO.MemoryStream _MemoryStream = new System.IO.MemoryStream(_Using);
            _MemoryStream.Position = 0;

            Ps = (List<Person>)_Json.ReadObject(_MemoryStream);

[sundotLei]

json.net

http://www.codeplex.com/Json

[leonbingo]

// 转换方法工具类
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Runtime.Serialization.Json;

namespace Utils
{
    /// <summary>
    /// Provides the util methods related to json.
    /// </summary>
    public static partial class JsonUtil
    {
        /// <summary>
        /// Converts json string to object.
        /// </summary>
        /// <param name="jsonString">Json string.</param>
        /// <param name="type">Object type.</param>
        /// <returns>Converted object.</returns>
        public static object ConvertJsonToObject(string jsonString, Type type)
        {
            object convertObject = null;

            try
            {
                DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(type);
                MemoryStream memoryStream = new MemoryStream();
                StreamWriter streamWriter = new StreamWriter(memoryStream);

                streamWriter.Write(jsonString);
                streamWriter.Flush();
                memoryStream.Position = 0;
                convertObject = jsonSerializer.ReadObject(memoryStream);
            }
            catch
            {
                // Nothing to do.
            }

            return convertObject;
        }
}

// 实体类
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.Serialization;

namespace Logic
{
    /// <summary>
    /// CardInfo.
    /// </summary>
    [DataContract]
    public class CardInfo
    {
        private string identityNumber;

        /// <summary>
        /// Gets or sets value of the IdentityNumber.
        /// </summary> 
        [DataMember]
        public string IdentityNumber
        {
            get 
            { 
                return identityNumber; 
            }
            set 
            {
                identityNumber = value;
            }
        }
    }
}

[love_rrr]

哥们,这段代码,你测过可以得到正确的结果?我运行后,结果不正确呀.

[Quote=引用 7 楼 xiaoxin4321 的回复:]
C# codepublicvoid GetPerson(string _JsonText)

List<Person> Ps=new List<Person>();
DataContractJsonSerializer _Json=new DataContractJsonSerializer(Pro.GetType());byte[] _Using= System.Text.Encoding.UTF8.GetBytes(_JsonText);
System.IO.MemoryStream _MemoryStream=new System.IO.MemoryStream(_Using);
_MemoryStream.Position=0;

Ps= (List<Person>)_Json.ReadObject(_MemoryStream);


[/Quote]

[xiaoxin4321]

[Quote=引用 10 楼 love_rrr 的回复:]
哥们,这段代码,你测过可以得到正确的结果?我运行后,结果不正确呀.

引用 7 楼 xiaoxin4321 的回复:
C# codepublicvoid GetPerson(string _JsonText)

List <Person> Ps=new List <Person>();
            DataContractJsonSerializer _Json=new DataContractJsonSerializer(Pro.GetType());byte[] _Using= System.Text.Encoding.UTF8.GetBytes(_JsonText);
            System.IO.MemoryStream _MemoryStream=new System.IO.MemoryStream(_Using);
            _MemoryStream.Position=0;

            Ps= (List <Person>)_Json.ReadObject(_MemoryStream);



[/Quote]

不正确？？你添加引用没啊，这个事我以前弄过的，可以添加到类集合的

[leonbingo]

用我说的那个吧,你只需要把Person这个类的相应属性加上[DataMember]标签，并且实体类加上[DataContract]标签，就可以用了。

[love_rrr]

现在问题是单个对象解析出来没有问题,但是如果是对象数组的话,就不知道该如何解析了

[leonbingo]

没问题,数组一样的支持,你只需要传递的type是数组的类型,比如typeof<Person[]>或者typeof(List<Person>),就这样

[mbh0210]

Newtonsoft.Json.dll 就可以了

[ICrazyBoy]

只能是过来围观，围观了。。。。。

[zhubo_1117]

Jsonconverter

[zhubo_1117]

javascriptserializer

[love_rrr]

很郁闷，如果去掉前面的那个0,1标识符的话，解析一点问题都没有，但是就是加上这个标识符，就解析失败。 如下解析不会有问题：
[{"name":"this is the silver","gold":"this gold","silver":"silverffff"},{"name":"the second name","gold":"the second gold","silver":"the second silver"}]
但是前面如果加上0,1的话，就会有问题 如：{"0":{"gold":"5","name":"a","silver":"c"},"1":{"gold":"0","name":"b","silver":"d"}}
希望哪位高手在解析的时候，最好把字符串输进去测试一下。
ps:可以再开一帖，加分。

[dudufen]

结贴了嘛？