c#操作json數據使用newtonsoft.json

開源項目提供的一個讀取示例

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 讀取

//json讀取示例
        public void jsonreadsample() 
        {
            string jsonstr = "{\"Name\" : \"Jack\", \"Age\" : 34, \"Colleagues\" : [{\"Name\" : \"Tom\" , \"Age\":44},{\"Name\" : \"Abel\",\"Age\":29}] }";
            //將json轉換為JObject
            JObject jo = JObject.Parse(jsonstr);
            JToken ageToken=jo["Name"]; //獲取該員工的姓名
            Console.WriteLine(ageToken.ToString());

            //獲取該員工同事所有姓名（讀取json數組）
            var names=from staff in jo["Colleagues"].Children() select (string)staff["Name"];
            foreach (var name in names)
                Console.WriteLine(name);
        }

url編碼

//URL encode
        public String UrlEncoded(string str)
        {
            StringBuilder sb = new StringBuilder();
            byte[] byStr = System.Text.Encoding.UTF8.GetBytes(str); //默認是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());
        }