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[ASP.net教程]ASP.NET JSON的序列化和反序列化 之 Newtonsoft.Json


我们用到的类库为:Newtonsoft.Json,通过VS工具中NuGet程序包可以下载。

一:对象转json-序列化

public class Student{  public int ID { get; set; }  public string Name { get; set; }  public int Age { get; set; }}  //第一种:单一实体类  Student s = new Student();  s.Age = 18;  s.ID = 1;  s.Name = "张三";  string json = Newtonsoft.Json.JavaScriptConvert.SerializeObject(s);//序列化对象(对象转json)  //第二种:List<T>泛型 和上边方法相同  List<Student> list = new List<Student>();  for (int i = 1; i < 5; i++)  {    Student stu = new Student();    stu.Age = i + 12;    stu.ID = i;    stu.Name = "No."+i.ToString();    list.Add(stu);  }  json = Newtonsoft.Json.JavaScriptConvert.SerializeObject(list);

 

二:json转对象 - 反序列化

  //json只有一条数据  JavaScriptObject obj = (JavaScriptObject)JavaScriptConvert.DeserializeObject(json);  string Name = obj["Name"].ToString();//取出某一字段  Response.Write(Name);  //json只有一条数据  Student ms = (Student)JavaScriptConvert.DeserializeObject(JavaScriptConvert.SerializeObject(obj), typeof(Student));//json转对象  Response.Write(ms.Name);  //json有多条数据  JavaScriptArray javascript = (JavaScriptArray)JavaScriptConvert.DeserializeObject(json);  List<Student> slist = new List<Student>();  for (int i = 0; i < javascript.Count; i++)  {    JavaScriptObject temp = (JavaScriptObject)javascript[i];    Student model = (Student)JavaScriptConvert.DeserializeObject(JavaScriptConvert.SerializeObject(temp), typeof(Student));    slist.Add(model);  }  Response.Write(slist[0].Name);