c# Json 序列化后转化为对象类集合

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[WebMethod]
       public static string GetAllHints()
       {
           Dictionary<string, string> data = new Dictionary<string, string>();
           data.Add("苹果4代iphone正品", "21782");
           data.Add("苹果4代手机套", "238061");
           data.Add("苹果4", "838360");
           data.Add("苹果皮", "242721");
           data.Add("苹果笔记本", "63348");
           data.Add("苹果4s", "24030");
           data.Add("戴尔笔记本", "110105");
           data.Add("戴尔手机", "18870");
           data.Add("戴尔键盘", "30367");
           //JSON序列化
           DataContractJsonSerializer serializer = new DataContractJsonSerializer(data.GetType());
           string dataString=string.Empty;
           //定义一个stream用来存放序列化之后的内容
           using (MemoryStream ms = new MemoryStream())
           {

serializer.WriteObject(ms, data);

//dataString为返回json 字符串
//{"Key":"苹果4代iphone正品","Value":"21782"},{"Key":"苹果4代手机套","Value":"238061"}

                  dataString = System.Text.Encoding.UTF8.GetString(ms.ToArray());

                  //从头到尾将stream读取成一个字符串形式的数据，并且返回
                  var memor = new MemoryStream(Encoding.UTF8.GetBytes(dataString));;
                  //将Json字符串反序列化成List对象类集合
                  DataContractJsonSerializer ser2 = new DataContractJsonSerializer(typeof(List<ConvetJson>));
                  List<ConvetJson> list = (List<ConvetJson>)ser2.ReadObject(memor);
               //下面进行其他操作即可。
                //JsonList另外一种转化list方法可直接调用
           }
           return "";
       }
       /// <summary>
       /// 将JSON字符串反序列化为List对象
       /// </summary>
       public List<ConvetJson> JsonList(string jsonString)
       {
           MemoryStream stream = new MemoryStream();
           DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(List<ConvetJson>));
           StreamWriter wr = new StreamWriter(stream);
           wr.Write(jsonString);
           wr.Flush();
           stream.Position = 0;
           Object obj = ser.ReadObject(stream);
           List<ConvetJson> listJson = (List<ConvetJson>)obj;
           return listJson;
       }

       //要序列化的类
       [DataContract]
       public class ConvetJson
       {
           [DataMember]
           public string Key { get; set; }
           [DataMember]
           public string Value { get; set; }

}

参考

www.rczjp.cn/ArticleShow.aspx?ID=717

http://www.techpot.net/archives/30308

http://www.cnblogs.com/coderzh/archive/2008/11/25/1340862.html

http://www.cnblogs.com/txw1958/archive/2012/08/01/csharp-json.html