c#操作json数据使用newtonsoft.json

开源项目提供的一个读取示例

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace Newtonsoft.Json.Tests.Documentation.Samples.Json
{
  public class ReadJsonWithJsonTextReader
  {
    public void Example()
    {
      #region Usage
      string json = @"{
         'CPU': 'Intel',
         'PSU': '500W',
         'Drives': [
           'DVD read/writer'
           /*(broken)*/,
           '500 gigabyte hard drive',
           '200 gigabype hard drive'
         ]
      }";

      JsonTextReader reader = new JsonTextReader(new StringReader(json));
      while (reader.Read())
      {
        if (reader.Value != null)
          Console.WriteLine("Token: {0}, Value: {1}", reader.TokenType, reader.Value);
        else
          Console.WriteLine("Token: {0}", reader.TokenType);
      }

      // Token: StartObject
      // Token: PropertyName, Value: CPU
      // Token: String, Value: Intel
      // Token: PropertyName, Value: PSU
      // Token: String, Value: 500W
      // Token: PropertyName, Value: Drives
      // Token: StartArray
      // Token: String, Value: DVD read/writer
      // Token: Comment, Value: (broken)
      // Token: String, Value: 500 gigabyte hard drive
      // Token: String, Value: 200 gigabype hard drive
      // Token: EndArray
      // Token: EndObject
      #endregion
    }
  }
}

json 读取

//json读取示例
        public void jsonreadsample() 
        {
            string jsonstr = "{"Name" : "Jack", "Age" : 34, "Colleagues" : [{"Name" : "Tom" , "Age":44},{"Name" : "Abel","Age":29}] }";
            //将json转换为JObject
            JObject jo = JObject.Parse(jsonstr);
            JToken ageToken=jo["Name"]; //获取该员工的姓名
            Console.WriteLine(ageToken.ToString());

            //获取该员工同事所有姓名（读取json数组）
            var names=from staff in jo["Colleagues"].Children() select (string)staff["Name"];
            foreach (var name in names)
                Console.WriteLine(name);
        }

url编码

//URL encode
        public String UrlEncoded(string str)
        {
            StringBuilder sb = new StringBuilder();
            byte[] byStr = System.Text.Encoding.UTF8.GetBytes(str); //默认是System.Text.Encoding.Default.GetBytes(str)
            for (int i = 0; i < byStr.Length; i++)
            {
                sb.Append(@"%" + Convert.ToString(byStr[i], 16).ToUpper());
            }

            return (sb.ToString());
        }