c#裡string和Json轉換

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這裡要用到如下兩個namespace:

using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;

定義Json實體類如下：

[DataContract]public class TextMessage{    [DataMember(Name = "content")]    public string Content { get; set; }}[DataContract]public class CustomerMessage{    [DataMember(Name = "touser")]    public string touser { get; set; }    [DataMember(Name = "msgtype")]    public string msgtype { get; set; }    [DataMember(Name = "text")]    public TextMessage textMsg { get; set; }}

對象序列化為Json格式如下：

CustomerMessage message = new CustomerMessage(){    touser = OpenIDBox.Text,    msgtype = "text",    textMsg = new TextMessage()    {        Content = ContentBox.Text    }};DataContractJsonSerializer json = new DataContractJsonSerializer(message.GetType());string szJson = "";//序列化using (MemoryStream stream = new MemoryStream()){    json.WriteObject(stream, message);    szJson = Encoding.UTF8.GetString(stream.ToArray());}Console.WriteLine(szJson);

 Json格式還原序列化為對象如下：

retStr = "<Json String>";using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(retStr))){    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(CustomerMessage));    CustomerMessage_message = (CustomerMessage)serializer.ReadObject(ms);}