C# 利用Newtonsoft.Json进行Json序列化与反序列化

转者注：原文有一处错误已修正。经常用的代码，收藏备用（2020-7-9）

通过DataContractJsonSerializer类来序列化一个对象为json字符串。

public class JsonConvert
	{
		public static string ObjectToJson(T obj)
		{
			var serializer = new DataContractJsonSerializer(typeof(T));
			var stream = new MemoryStream();
			serializer.WriteObject(stream, obj);

			byte[] dataBytes = new byte[stream.Length];

			stream.Position = 0;

			stream.Read(dataBytes, 0, (int)stream.Length);

			string json = Encoding.UTF8.GetString(dataBytes);

			return json;
		}

		public static T JsonToObject(string jsonString)
		{
			DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
			var stream = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
			T t1 = (T)serializer.ReadObject(stream );

			return t1;
		}
	}

使用Json.NET(Newtonsoft.Json)进行序列化与反序列化。

List students = studentBLL.GetALL();
string jsonStudents = JsonConvert.SerializeObject(students);

 string jsonStudents = service.GetAllStudent();
 List students = JsonConvert.DeserializeObject>(jsonStudents);