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csharp:using Newtonsoft.Json.Net2.0 in .net 2.0 webform

2024-07-06 19:39:24   220人阅读

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/// <summary>
   /// http://www.weather.com.cn/data/sk/101280601.html
   ///  {"weatherinfo":{"city":"深圳","cityid":"101280601","temp":"32","WD":"西南风","WS":"4级","SD":"68%","WSE":"4","time":"16:40","isRadar":"1","Radar":"JC_RADAR_AZ9755_JB"}}
   /// 20140531 涂聚文 Geovin Du
   /// </summary>
   public class WeatherInfo
   {
 
 
       //public  string city;
       //public string cityid;
       //public string temp;
       //public string WD;
       //public string WS;
       //public string SD;
       //public string WSE;
       //public string time;
       //public string isRadar;
       //public string Radar;
 
       string _city;
       string _cityid;
       string _temp;
       string _WD;
       string _WS;
       string _SD;
       string _WSE;
       string _time;
       string _isRadar;
       string _Radar;
       /// <summary>
       /// 城市名称
       /// </summary>
       public string city
       {
 
           get
           {
               return _city;
           }
           set
           {
               _city = value;
           }
       }
       /// <summary>
       /// 城市代码
       /// </summary>
       public string cityid
       {
           get
           {
               return _cityid;
           }
           set
           {
               _cityid = value;
           }
           //get;
           //set;
       }
       /// <summary>
       /// 温度
       /// </summary>
       public string temp
       {
           get
           {
               return _temp;
           }
           set
           {
               _temp = value;
           }
 
       }
       /// <summary>
       /// 风向
       /// </summary>
       public string WD
       {
           get
           {
               return _WD;
           }
           set
           {
               _WD = value;
           }
      
       }
       /// <summary>
       /// 风级
       /// </summary>
       public string WS
       {
           get
           {
               return _WS;
           }
           set
           {
               _WS = value;
           }
      
       }
       /// <summary>
       /// 湿度
       /// </summary>
       public string SD
       {
           get
           {
               return _SD;
           }
           set
           {
               _SD = value;
           }
     
       }
       /// <summary>
       ///
       /// </summary>
       public string WSE
       {
           get
           {
               return _WSE;
           }
           set
           {
               _WSE = value;
           }
 
       }
       /// <summary>
       /// 发布时间
       /// </summary>
       public string time
       {
           get
           {
               return _time;
           }
           set
           {
               _time = value;
           }
       }
       /// <summary>
       ///
       /// </summary>
       public string isRadar
       {
           get
           {
               return _isRadar;
           }
           set
           {
               _isRadar = value;
           }
 
      
       }
       /// <summary>
       ///
       /// </summary>
       public string Radar
       {
           get
           {
               return _Radar;
           }
           set
           {
               _Radar = value;
           }
 
        
       }
       private Dictionary<string, object> _theRest = new Dictionary<string, object>();
       public Dictionary<string, object> TheRest
       {
           get { return _theRest; }
 
 
       }  
       // public Dictionary<string, decimal> Rates { get; set; }
   }
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/// <summary>
    /// http://www.weather.com.cn/data/sk/101280601.html
    /// 20140531 涂聚文 Geovin Du
    /// </summary>
    public class WeatherInfoConverter : CustomCreationConverter<WeatherInfo>
    {
        public override WeatherInfo Create(Type objectType)
        {
            return new WeatherInfo();
        }
 
        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            WeatherInfo mappedObj = new WeatherInfo();
            //get an array of the object‘s props so I can check if the JSON prop s/b mapped to it
            PropertyInfo[] myPropertyInfo;
            myPropertyInfo = objectType.GetProperties();
            string objProps = string.Empty;
 
            //for (int i = 0; i < myPropertyInfo.Length; i++)
            //{
            //    objProps = objProps +" "+ myPropertyInfo[i].ToString();
            //}
 
            foreach (PropertyInfo pi in objectType.GetProperties())
            {
                object value1 = pi.GetValue(mappedObj, null);//用pi.GetValue获得值 
                objProps = objProps + " " + pi.Name;//获得属性的名字,后面就可以根据名字判断来进行些自己想要的操作 
                //获得属性的类型,进行判断然后进行以后的操作,例如判断获得的属性是整数 
                //if(value1.GetType() == typeof(int))  
                //{  
                //    //进行你想要的操作 
                //}  
            } 
             //objProps = myPropertyInfo[0].Name.ToLower().ToString(); //objectType.GetProperties().Select(p => p.Name.ToLower()).ToArray();
 
            //loop through my JSON string
            while (reader.Read())
            {
                //if I‘m at a property...
                if (reader.TokenType == JsonToken.PropertyName)
                {
                    //convert the property to lower case
                    string readerValue = http://www.mamicode.com/reader.Value.ToString().ToLower();
                    if (reader.Read())  //read in the prop value
                    {
                        //is this a mapped prop?
                        if (objProps.Contains(readerValue))
                        {
                            //get the property info and set the Mapped object‘s property value
                            PropertyInfo pi = mappedObj.GetType().GetProperty(readerValue, BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance);
                            object convertedValue = http://www.mamicode.com/Convert.ChangeType(reader.Value, pi.PropertyType);
                            pi.SetValue(mappedObj, convertedValue, null);
                        }
                        else
                        {
                            //otherwise, stuff it into the Dictionary
                            mappedObj.TheRest.Add(readerValue, reader.Value);
                        }
                    }
                }
            }
            return mappedObj;
        }
    }

 

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/// <summary>
  /// http://www.weather.com.cn/data/sk/101280601.html
  /// http://www.weather.com.cn/data/cityinfo/101280601.html
  /// http://geoip.weather.com.cn/g/
  /// http://m.weather.com.cn/data/101190101.html
  /// 20140531 涂聚文 Geovin Du
  /// {"weatherinfo":{"city":"深圳","cityid":"101280601","temp":"32","WD":"西南风","WS":"4级","SD":"68%","WSE":"4","time":"16:40","isRadar":"1","Radar":"JC_RADAR_AZ9755_JB"}}
  /// </summary>
  public partial class WebForm1 : System.Web.UI.Page
  {
      string json_data = http://www.mamicode.com/string.Empty;
      string url = string.Empty;
 
      //WeatherInfo we = new WeatherInfo();
      /// <summary>
      /// http://social.msdn.microsoft.com/Forums/en-US/4392c97a-3c6e-45b9-99c9-12a979c64910/c-20-jsonnet
      /// </summary>
      /// <param name="sender"></param>
      /// <param name="e"></param>
      protected void Page_Load(object sender, EventArgs e)
      {
          try
          {
              url = "http://www.weather.com.cn/data/sk/101280601.html";
 
              WebClient wc = new WebClient();
              wc.Encoding = System.Text.Encoding.UTF8;//定义对象语言
              json_data = http://www.mamicode.com/wc.DownloadString(url);
              //JsonConvert.DeserializeObject<Table>(json_data);
              //var ser = new JavaScriptSerializer();
              //we = _download_serialized_json_data<WeatherInfo>(url);
              JsonSerializerSettings settings = new JsonSerializerSettings();
              WeatherInfo we = JsonConvert.DeserializeObject<WeatherInfo>(json_data, new WeatherInfoConverter());// JsonConvert.DeserializeObject(json_data, Type.GetType, we);                        
 
              Response.Write("城市："+we.city);
              Response.Write("城市代码：" + we.cityid);
              Response.Write("温度：" + we.temp);
              Response.Write("发布时间：" + we.time);
              //Response.Write(we.TheRest[""].ToString());
              Response.Write("发风：" + we.WD);
              Response.Write("湿度：" + we.SD);
 
              Dictionary<string, object> dict = we.TheRest;
              //Response.Write(we.TheRest["WD"].ToString());
              //for (int i = 0; i < dict.Count; i++)
              //{
              //    Response.Write(dict.Keys.ToString());
              //    Response.Write(dict.Values.ToString());
 
              //}
              foreach (KeyValuePair<string, object> kvp in dict)
              {
                  //outputBlock.Text += String.Format("Key = {0}, Value = http://www.mamicode.com/{1}", kvp.Key, kvp.Value) + "\n";
                  string s = string.Format("键是：{0}  值是：{1}", kvp.Key.ToString(), (!object.Equals(kvp.Value, null) ? kvp.Value.ToString(): ""));
                  Response.Write(s);
              }
 
              //Hashtable dict = new Hashtable();
              //foreach (DictionaryEntry i in dict)
              //{
              //    string s = string.Format("键是：{0}  值是：{1}", i.Key.ToString(), i.Value.ToString());
              //    Response.Write(s);
              //}
 
          }
          catch (JsonReaderException tu)
          {
              Response.Write(tu.Message.ToString());
          }
 
      }
 
      //.net 4.0
      //private static T _download_serialized_json_data<T>(string url) where T : new()
      //{
      //    using (WebClient w = new WebClient())
      //    {
      //      string  json_data = http://www.mamicode.com/string.Empty;
      //        // attempt to download JSON data as a string
      //        try
      //        {
      //            json_data = http://www.mamicode.com/w.DownloadString(url);
      //        }
      //        catch (Exception) { }
      //        // if string with JSON data is not empty, deserialize it to class and return its instance
      //        return !string.IsNullOrEmpty(json_data) ? JsonConvert.DeserializeObject<T>(json_data) : new T();
      //    }
      //}
 
  }

 


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