反序列化JSON文本 [英] Deserialise JSON text

问题描述

我试图反序列化以下JSON文本，但无处可去，我无法弄清楚我哪里出错 - 有人能指出我正确的方向吗？



{

数据：

{

id：125，

domain：体育，

patient_name：Fred Smith，

patient_gender：男性，

patient_image：https ：\ / \ / mysite.png，

温度： - 105，

持续时间：130，

weir_height：160，

session_rank：1，

next_session_rank：2，

next_session_date：

{

date：2017-10-15 10：00：00.000000，

timezone_type：3，

时区：UTC

}

}

}



我认为它与JSON字段是'数据'键的子级别有关，这就是我很难找到如何处理，因为代码使用的是没有的JSON数据这个容器r。



我尝试过：

使用响应As Net.HttpWebResponse = request.GetResponse 
使用streamReader作为新IO.StreamReader（response.GetResponseStream）
 
 Dim jsonResponseText = streamReader.ReadToEnd 
 Dim jsonResult作为PFCNext =新的Web.Script.Serialization.JavaScriptSerializer（）。反序列化（jsonResponseText，GetType（PFCNext））
 
结束使用'streamreader 
结束使用'响应
 
类PFCNext 
 Property Id As String 
 Property Domain As String 
 Property Patient_name As String 
 Property Patient_gender As String 
 Property Patient_image As String 
 Property Temperature As String 
 Property Duration As String 
 Property Weir_height As String 
 Property Session_rank As String 
 Property Next_session_rank As String 
 Property Next_session_d ate As String 
 Property Date_ As String 
 Property Timezone_type As String 
 Property Timezone As String 
 End Class 

解决方案

除非你编写自定义转换器，否则你的类的结构需要与你的JSON结构相匹配：

 类 PFCNextWrapper 
 公共 属性数据作为 PFCNext 
 结束 类 
 
 类 PFCNext 
 公开 属性标识作为 整数 
 公开 属性域 As  字符串 
 公共 属性 Patient_name 作为 字符串 
 公共 属性 Patient_gender 作为 字符串 
 公共 属性 Patient_image 作为 字符串 
 公共 属性温度 As  整数 
 公开 属性持续时间作为 整数 
 公共 属性 Weir_height 作为 整数 
 公共 属性 Session_rank  As  整数 
 公开 属性 Next_session_rank 作为 整数 
 公共 属性 Next_session_date 作为 NextSessionDate 
 结束 类 
 
 类 NextSessionDate 
 公开 属性 [日期] 正如 日期 
 公开 属性 Timezone_type  As  整数 
 公开 属性时区作为 字符串 
 结束 类 

然后，您可以将JSON反序列化为 PFCNextWrapper 类型：

  Dim 序列化程序作为 新 Web.Script.Serialization.JavaScriptSerializer（）
  Dim  jsonResult  As  PFCNextWrapper =  CType （ serializer.Deserialize（jsonResponseText， GetType （PFCNextWrapper）），PFCNextWrapper）

此CodeProject文章将向您展示如何使用源代码获取原始内容JSON数据，快速生成类并反序列化数据：在C＃和amp中使用JSON ; VB [ ^ ]

Im trying to deserialise the following JSON text, but getting nowhere and I cant figure out where Im going wrong - can anyone point me in the right direction please?

{
"data":
{
"id":125,
"domain":"Sports",
"patient_name":"Fred Smith",
"patient_gender":"male",
"patient_image":"https:\/\/mysite.png",
"temperature":-105,
"duration":130,
"weir_height":160,
"session_rank":1,
"next_session_rank":2,
"next_session_date":
{
"date":"2017-10-15 10:00:00.000000",
"timezone_type":3,
"timezone":"UTC"
}
}
}

I think its something to do with the JSON fields being a sub-level of the 'data' key and that is what I'm finding hard to figure out how to deal with as the code works with JSON data that doesn't have this container.

What I have tried:

Using response As Net.HttpWebResponse = request.GetResponse
     Using streamReader As New IO.StreamReader(response.GetResponseStream)
     
     Dim jsonResponseText = streamReader.ReadToEnd
     Dim jsonResult As PFCNext = New Web.Script.Serialization.JavaScriptSerializer().Deserialize(jsonResponseText, GetType(PFCNext))
     
    End Using 'streamreader
End Using 'response

    Class PFCNext
        Property Id As String
        Property Domain As String
        Property Patient_name As String
        Property Patient_gender As String
        Property Patient_image As String
        Property Temperature As String
        Property Duration As String
        Property Weir_height As String
        Property Session_rank As String
        Property Next_session_rank As String
        Property Next_session_date As String
        Property Date_ As String
        Property Timezone_type As String
        Property Timezone As String
    End Class

解决方案

Unless you write a custom converter, the structure of your class needs to match the structure of your JSON:

Class PFCNextWrapper
    Public Property Data As PFCNext
End Class

Class PFCNext
    Public Property Id As Integer
    Public Property Domain As String
    Public Property Patient_name As String
    Public Property Patient_gender As String
    Public Property Patient_image As String
    Public Property Temperature As Integer
    Public Property Duration As Integer
    Public Property Weir_height As Integer
    Public Property Session_rank As Integer
    Public Property Next_session_rank As Integer
    Public Property Next_session_date As NextSessionDate
End Class

Class NextSessionDate
    Public Property [Date] As Date
    Public Property Timezone_type As Integer
    Public Property Timezone As String
End Class

You can then deserialize your JSON to the PFCNextWrapper type:

Dim serializer As New Web.Script.Serialization.JavaScriptSerializer()
Dim jsonResult As PFCNextWrapper = CType(serializer.Deserialize(jsonResponseText, GetType(PFCNextWrapper)), PFCNextWrapper)

This CodeProject article will show you how, with source code, to take raw JSON data, generate the classes quickly and deserialize the data: Working with JSON in C# & VB[^]

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