c#中字符串转为json对象与json转对象
using System.Collections.Generic;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json;
using System.Web.Script.Serialization;
//使⽤JavaScriptSerializer()⽅式转json，需要添加System.Web.Extensions.dll最低的frameword3.5版本才有该dll
//使⽤JsonConvert⽅式需要Newtonsoft.dll；引⽤Newtonsoft.Json，frameword2.0也可以⽤
//字符串转json
public static void strJson()
{
string jsonText = "{\"shenzheng\":\"深圳\",\"beijing\":\"北京\",\"shanghai\":[{\"zj1\":\"zj11\",\"zj2\":\"zj22\"},\"zjs\"]}";
//转为json对象
JObject jo = (JObject)JsonConvert.DeserializeObject(jsonText);
string zone = jo["shenzheng"].ToString();//输出深圳
string zone_en = jo["shanghai"].ToString();//"[\r\n  {\r\n    \"zj1\": \"zj11\",\r\n    \"zj2\": \"zj22\"\r\n  },\r\n  \"zjs\"\r\n]"
string zj1 = jo["shanghai"][1].ToString();//"zjs"
Console.WriteLine(jo);
}
//JsonConvert⽅式的集合转json
string jo =JsonConvert.SerializeObject(ListUserInfoModel);
//对象与数组转JSON
public static void GetJsonString()
{
//初始化对象
Obj product = new Obj() { Name = "苹果", Price = 5.5 };
//序列化
string o = new JavaScriptSerializer().Serialize(product);//值："{\"Name\":\"苹果\",\"Price\":5.5}"
//数组转json
List<Obj> products = new List<Obj>(){
new Obj(){Name="苹果",Price=5.5},
new Obj(){Name="橘⼦",Price=2.5},
new Obj(){Name="⼲柿⼦",Price=16.00}
};
ProductList productlist = new ProductList();
productlist.GetProducts = products;
//序列化
string os = new JavaScriptSerializer().Serialize(productlist);
//输出 "{\"GetProducts\":[{\"Name\":\"苹果\",\"Price\":5.5},{\"Name\":\"橘⼦\",\"Price\":2.5},{\"Name\":\"⼲柿⼦\",\"Price\":16}]}"        }
//json转对象、数组, 反序列化
public static void JSONStringToList()
{
//json格式字符串
string JsonStr = "{Name:'苹果',Price:5.5}";
JavaScriptSerializer Serializer = new JavaScriptSerializer();
json转换对象//json字符串转为对象, 反序列化
Obj obj = Serializer.Deserialize<Obj>(JsonStr);
Console.Write(obj.Name + ":" + obj.Price + "\r\n");
Console.Write(obj.Name + ":" + obj.Price + "\r\n");
//json格式字符串
string JsonStrs = "[{Name:'苹果',Price:5.5},{Name:'橘⼦',Price:2.5},{Name:'柿⼦',Price:16}]";            JavaScriptSerializer Serializers = new JavaScriptSerializer();
//json字符串转为数组对象, 反序列化
List<Obj> objs = Serializers.Deserialize<List<Obj>>(JsonStrs);
foreach (var item in objs)
{
Console.Write(item.Name + ":" + item.Price + "\r\n");
}
}

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