Asp.Net Newtonsoft.Json使用教程

json序列化和反序列化的使用教程

实体

public class wendaModel
{
    private string _title;
    private string _cons;

    public string title
    {
        set { _title = value; }
        get { return _title; }
    }
    public string cons
    {
        set { _cons = value; }
        get { return _cons; }
    }
}

1、对象转换为json字符串（序列化）

wendaModel model = new wendaModel();
model.title = "json";
model.cons = "asp.net";

string json = Newtonsoft.Json.JsonConvert.SerializeObject(model);
Response.Write(json);
//输入结果：{"title":"json","cons":"asp.net"}

2、List转换为json字符串（序列化）

List<wendaModel> list = new List<wendaModel>();
for (int i = ; i < ; i++)
{
    wendaModel model = new wendaModel();
    model.title = "json" + i.ToString();
    model.cons = "asp.net" + i.ToString();
    list.Add(model);
}
string json = Newtonsoft.Json.JsonConvert.SerializeObject(list);
Response.Write(json);
//输出结果：[{"title":"json0","cons":"asp.net0"},{"title":"json1","cons":"asp.net1"},{"title":"json2","cons":"asp.net2"}]

3、json字符串转换为对象（反序列化）

string json = "{\"cons\":\"asp.net\",\"title\":\"json\"}";
wendaModel model = Newtonsoft.Json.JsonConvert.DeserializeObject<wendaModel>(json);
Response.Write(model.title + "=" + model.cons);
//输出结果：json=asp.net

4、json字符串转换为对象（反序列化）

string json = "[{\"cons\":\"asp.net2\",\"title\":\"json2\"},{\"cons\":\"asp.net1\",\"title\":\"json1\"}]";
List<wendaModel> list = Newtonsoft.Json.JsonConvert.DeserializeObject<List<wendaModel>>(json);
foreach (var item in list)
{
     Response.Write(item.title);
}