windows phone 中的 json解析

转自：http://www.cnblogs.com/shizhenglg/archive/2013/02/25/2932279.html

添加System.Servicemodel.Web程序集，using System.Runtime.Serialization.Json需要此程序集

public class TopRotateImage
{
private string _id;

public string id
{
get { return _id; }
set { _id = value; }
}
private string _image;

public string image
{
get { return _image; }
set { _image = value; }
}
private string _intro;

public string intro
{
get { return _intro; }
set { _intro = value; }
}
}

public class WeatherInfo
{

public string city { get; set; }
//public string cityid { get; set; }
//public string date_y { get; set; }
//public string week { get; set; }
//public string temp1 { get; set; }
//public string temp2 { get; set; }
//public string temp3 { get; set; }
//public string temp4 { get; set; }
//public string temp5 { get; set; }
//public string weather1 { get; set; }
//public string weather2 { get; set; }
//public string weather3 { get; set; }
//public string weather4 { get; set; }
//public string weather5 { get; set; }
//public string wind1 { get; set; }
//public string index48_d { get; set; }  //index48_d
}
public class WeInfo
{
public WeatherInfo weatherinfo { get; set; }

}

以上是两个不同json需要的model

xaml

<ListBox x:Name="wList"  SelectionChanged="wList_SelectionChanged_1">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding intro}" Width="200" Height="200" Foreground="Red"/>
<!--<TextBlock Text="{Binding city}" Width="200" Height="200" Foreground="Red"/>-->
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

后台数据解析用到的帮助类

public class JsonParser
{
//序列化，json字符串
public static string Serialize(object objectToSerialize)
{
using (MemoryStream ms = new MemoryStream())
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(objectToSerialize.GetType());
serializer.WriteObject(ms, objectToSerialize);
ms.Position = 0;
using (StreamReader reader = new StreamReader(ms))
{
return reader.ReadToEnd();
}
}
}

//反序列化,解析json转成对象
public static T Deserialize<T>(string jsonString)
{
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
return (T)serializer.ReadObject(ms);
}
}

读取是需要这个类

public class ReadJson
{
/// <获取Json内容>
/// 获取Json内容
/// </获取Json内容>
/// <param name="jsonstream">Json流</param>
/// <returns>返回string 类型Json内容</returns>
public static string ReturnJsonContent(Stream jsonstream)
{
StreamReader sr = new StreamReader(jsonstream);
return sr.ReadToEnd();
}
}

后台的解析

private void PhoneApplicationPage_Loaded_1(object sender, RoutedEventArgs e)
{
WebClient wc = new WebClient();
wc.DownloadStringCompleted += wc_DownloadStringCompleted;
wc.DownloadStringAsync(new Uri("http://gaobo.zcom.com:8089/zcomreader/recommend/index_slide"));
//wc.OpenReadCompleted += new OpenReadCompletedEventHandler(wc_OpenReadCompleted);
//wc.OpenReadAsync(new Uri("http://gaobo.zcom.com:8089/zcomreader/recommend/index_slide"));
}

void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
List<TopRotateImage> weInfo = new List<TopRotateImage>();
weInfo = JsonParser.Deserialize<List<TopRotateImage>>(e.Result);
wList.ItemsSource = weInfo;
}
//List<TopRotateImage> weInfo = new List<TopRotateImage>();
//void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
//{
//    string str = ReadJson.ReturnJsonContent(e.Result);
//    MessageBox.Show(str);
//    weInfo = JsonParser.Deserialize<List<TopRotateImage>>(str);
//    wList.ItemsSource = weInfo;
//}
//private void PhoneApplicationPage_Loaded_1(object sender, RoutedEventArgs e)
//{
//    WebClient wc = new WebClient();
//    wc.OpenReadCompleted += new OpenReadCompletedEventHandler(wc_OpenReadCompleted);
//    wc.OpenReadAsync(new Uri("http://m.weather.com.cn/data/101180101.html"));
//}
//List<WeatherInfo> weInfo = new List<WeatherInfo>();
//void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
//{
//    string str = ReadJson.ReturnJsonContent(e.Result);
//    MessageBox.Show(str);
//    WeInfo weinfo = JsonParser.Deserialize<WeInfo>(str);
//    weInfo.Add(weinfo.weatherinfo);
//    //MessageBox.Show(weinfo.weatherinfo.city);

//    wList.ItemsSource = weInfo;
//}

private void wList_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
{
//if (wList.SelectedIndex != -1)
//{
//    MessageBox.Show(((WeatherInfo)wList.SelectedItem).city);
//}
if (wList.SelectedIndex != -1)
{
MessageBox.Show(((TopRotateImage)wList.SelectedItem).intro);
}
}

用newtinsoft.json解析

 

List<TopRotateImage> wilist = new List<TopRotateImage>();
//void wb_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
//{

//MessageBox.Show(e.Result);

//if (e.Result.Length <= 0 || e.Error != null || e.Cancelled)
//{
//    MessageBox.Show("获取天气预报失败！");
//    return;
//}

//JObject json = JObject.Parse(e.Result);//用Jobject解析json数据

//wilist.Add(new WeatherInfo
//{
//    city = (string)json["weatherinfo"]["city"],
//    cityid = (string)json["weatherinfo"]["cityid"],
//    date_y = (string)json["weatherinfo"]["date_y"],
//    week = (string)json["weatherinfo"]["week"],
//    index48_d = (string)json["weatherinfo"]["index48_d"],
//    wind1 = (string)json["weatherinfo"]["wind1"],
//    temp1 = (string)json["weatherinfo"]["temp1"],
//    temp2 = (string)json["weatherinfo"]["temp2"],
//    temp3 = (string)json["weatherinfo"]["temp3"],
//    temp4 = (string)json["weatherinfo"]["temp4"],
//    temp5 = (string)json["weatherinfo"]["temp5"],
//    weather1 = (string)json["weatherinfo"]["weather1"],
//    weather2 = (string)json["weatherinfo"]["weather2"],
//    weather3 = (string)json["weatherinfo"]["weather3"],
//    weather4 = (string)json["weatherinfo"]["weather4"],
//    weather5 = (string)json["weatherinfo"]["weather5"]
//});
//wList.ItemsSource = wilist;
//}