dsjpqpdm620596
dsjpqpdm620596
2015-03-22 07:17
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如何在wpf应用程序中使用json响应

My wpf application is communicating with php web api. First I post some data to web api and recieved json resonse. At server side php script just prepared an array and json_encode(arrayName)is sent to client. At my client side I am using following code

using (WebResponse jsonResponse = request.GetResponse())
            {
                // Do something with response
                StreamReader streamReader = new StreamReader(jsonResponse.GetResponseStream());
                String responseData = streamReader.ReadToEnd();

                MessageBox.Show(responseData);
            }

in the message box I am able to see all the data sent by server. Now I don't have any idea how to assign this data to local variables? Kindly guide me.

http://i.imgur.com/1Qzds8G.png

EDIT

Response shown in message box is :-

[{"response":"true","user_id":"250","username":"sapan108"}]'

After Googling I created following class :-

public class UserData
{
    public string response { get; set; }
    public string error { get; set; }
    public int user_id { get; set; }
    public string username { get; set; }
}

Now How to assign json response to these variables.

Note: Due to less reputation unable to post image directly. Sorry for inconvenience.

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2条回答 默认 最新

  • dongsu4345
    dongsu4345 2015-03-22 07:34
    已采纳

    1) You should create class to represent json data (http://json2csharp.com/)

    public class RootObject
    {
        public string response { get; set; }
        public string user_id { get; set; }
        public string username { get; set; }
        public string current_balance { get; set; }
        public string message { get; set; }
        public string outh_token { get; set; }
        public List<string> lastFiveSpinNumbers { get; set; }
    }
    

    2) You should deserialize json data into class (the easiest way is to using Json.NET library - http://www.newtonsoft.com/json)

    using (WebResponse jsonResponse = request.GetResponse())
    {
        // Do something with response
        StreamReader streamReader = new StreamReader(jsonResponse.GetResponseStream());
        String responseData = streamReader.ReadToEnd();
        var myData = JsonConvert.DeserializeObject<List<RootObject>>(responseData);  
        // process your data
        foreach (var rootObject in myData)
        {
            string response = rootObject.response;
            // ...
        }
    }
    
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  • dongyuan1984
    dongyuan1984 2015-03-22 07:35

    Use Newtonsoft Json to deserialize response like :

    public class UserData
    {
        public string response { get; set; }
        public string error { get; set; }
        public int user_id { get; set; }
        public string username { get; set; }
    }
    
    
    UserData data = JsonConvert.DeserializeObject<UserData>(response);
    
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