我试图从VB中的Zoho CRM API解析以下复杂的JSON

时间：2016-12-01 12:08:46

标签： .net vb.net json.net zoho

我和this question

中的问题完全相同

我能够让代码在C＃中工作，但是我在Visual Basic中编写程序。我通过转换器运行代码并得到了这个：

Public Class Form1

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    Dim html As String = String.Empty
    Dim url As String = "https://crm.zoho.com/crm/private/json/Contacts/searchRecords?authtoken=0e0dd5f8153bc0a1299766b32d09e4f7&&scope=crmapi&fromIndex=1&toIndex=200&criteria=(Store:3110)"

    Dim request As HttpWebRequest = DirectCast(WebRequest.Create(url), HttpWebRequest)
    request.AutomaticDecompression = DecompressionMethods.GZip

    Using response As HttpWebResponse = DirectCast(request.GetResponse(), HttpWebResponse)
        Using stream As Stream = response.GetResponseStream()
            Using reader As New StreamReader(stream)
                html = reader.ReadToEnd()
            End Using
        End Using
    End Using


    Dim loContactList As New List(Of Contact)()
    Dim loContact As Contact = Nothing

    Dim respone As ResponseActual = JsonConvert.DeserializeObject(Of ResponseActual)(html)

    For Each row var In respone.Response.Result.Contacts.Row
        loContact = New Contact()

        Dim rowItem = row.FL.ToList()

        Try
            loContact.ContactID = rowItem.Where(Of FL)(Function(s, t) s.Val = "CONTACTID").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.OwnerID = rowItem.Where(Of FL)(Function(s, t) s.Val = "SMOWNERID").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.ContactOwner = rowItem.Where(Of FL)(Function(s, t) s.Val = "Contact Owner").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.FirstName = rowItem.Where(Of FL)(Function(s, t) s.Val = "First Name").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.LastName = rowItem.Where(Of FL)(Function(s, t) s.Val = "Last Name").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.Email = rowItem.Where(Of FL)(Function(s, t) s.Val = "Email").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.CreatorID = rowItem.Where(Of FL)(Function(s, t) s.Val = "SMCREATORID").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.CreatedBy = rowItem.Where(Of FL)(Function(s, t) s.Val = "Created By").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.ModifiedByID = rowItem.Where(Of FL)(Function(s, t) s.Val = "MODIFIEDBY").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.ModifiedBy = rowItem.Where(Of FL)(Function(s, t) s.Val = "Modified By").[Select](Function(x) x.Content).[Single]()
        Catch
        End Try
        Try
            loContact.CreatedTime = Convert.ToDateTime(rowItem.Where(Of FL)(Function(s, t) s.Val = "Created Time").[Select](Function(x) x.Content).[Single]())
        Catch
        End Try
        Try
            loContact.ModifiedTime = Convert.ToDateTime(rowItem.Where(Of FL)(Function(s, t) s.Val = "Modified Time").[Select](Function(x) x.Content).[Single]())
        Catch
        End Try
        Try
            loContact.LastActivityTime = Convert.ToDateTime(rowItem.Where(Of FL)(Function(s, t) s.Val = "Last Activity Time").[Select](Function(x) x.Content).[Single]())
        Catch
        End Try
        ListBox1.Items.Add(loContact.FirstName + " " + loContact.LastName)
        loContactList.Add(loContact)
    Next
End Sub
End Class
Public Class Contact
<JsonProperty(PropertyName:="CONTACTID")>
Public Property ContactID() As String
    Get
        Return m_ContactID
    End Get
    Set
        m_ContactID = Value
    End Set
End Property
Private m_ContactID As String
<JsonProperty(PropertyName:="SMOWNERID")>
Public Property OwnerID() As String
    Get
        Return m_OwnerID
    End Get
    Set
        m_OwnerID = Value
    End Set
End Property
Private m_OwnerID As String
<JsonProperty(PropertyName:="Contact Owner")>
Public Property ContactOwner() As String
    Get
        Return m_ContactOwner
    End Get
    Set
        m_ContactOwner = Value
    End Set
End Property
Private m_ContactOwner As String
<JsonProperty(PropertyName:="First Name")>
Public Property FirstName() As String
    Get
        Return m_FirstName
    End Get
    Set
        m_FirstName = Value
    End Set
End Property
Private m_FirstName As String
<JsonProperty(PropertyName:="Last Name")>
Public Property LastName() As String
    Get
        Return m_LastName
    End Get
    Set
        m_LastName = Value
    End Set
End Property
Private m_LastName As String
<JsonProperty(PropertyName:="Email")>
Public Property Email() As String
    Get
        Return m_Email
    End Get
    Set
        m_Email = Value
    End Set
End Property
Private m_Email As String
<JsonProperty(PropertyName:="SMCREATORID")>
Public Property CreatorID() As String
    Get
        Return m_CreatorID
    End Get
    Set
        m_CreatorID = Value
    End Set
End Property
Private m_CreatorID As String
<JsonProperty(PropertyName:="Created By")>
Public Property CreatedBy() As String
    Get
        Return m_CreatedBy
    End Get
    Set
        m_CreatedBy = Value
    End Set
End Property
Private m_CreatedBy As String
<JsonProperty(PropertyName:="MODIFIEDBY")>
Public Property ModifiedByID() As String
    Get
        Return m_ModifiedByID
    End Get
    Set
        m_ModifiedByID = Value
    End Set
End Property
Private m_ModifiedByID As String
<JsonProperty(PropertyName:="Modified By")>
Public Property ModifiedBy() As String
    Get
        Return m_ModifiedBy
    End Get
    Set
        m_ModifiedBy = Value
    End Set
End Property
Private m_ModifiedBy As String
<JsonProperty(PropertyName:="Created Time")>
Public Property CreatedTime() As DateTime
    Get
        Return m_CreatedTime
    End Get
    Set
        m_CreatedTime = Value
    End Set
End Property
Private m_CreatedTime As DateTime
<JsonProperty(PropertyName:="Modified Time")>
Public Property ModifiedTime() As DateTime
    Get
        Return m_ModifiedTime
    End Get
    Set
        m_ModifiedTime = Value
    End Set
End Property
Private m_ModifiedTime As DateTime
<JsonProperty(PropertyName:="Last Activity Time")>
Public Property LastActivityTime() As DateTime
    Get
        Return m_LastActivityTime
    End Get
    Set
        m_LastActivityTime = Value
    End Set
End Property
Private m_LastActivityTime As DateTime
End Class


Public Class ResponseActual

<JsonProperty("response")>
Public Property Response() As Response2
    Get
        Return m_Response
    End Get
    Set
        m_Response = Value
    End Set
End Property
Private m_Response As Response2
End Class

Public Class Response2

<JsonProperty("result")>
Public Property Result() As Result
    Get
        Return m_Result
    End Get
    Set
        m_Result = Value
    End Set
End Property
Private m_Result As Result

<JsonProperty("uri")>
Public Property Uri() As String
    Get
        Return m_Uri
    End Get
    Set
        m_Uri = Value
    End Set
End Property
Private m_Uri As String
End Class

Public Class Result

<JsonProperty("Contacts")>
Public Property Contacts() As Contacts
    Get
        Return m_Contacts
    End Get
    Set
        m_Contacts = Value
    End Set
End Property
Private m_Contacts As Contacts
End Class

Public Class Contacts

<JsonProperty("row")>
Public Property Row() As IList(Of Row)
    Get
        Return m_Row
    End Get
    Set
        m_Row = Value
    End Set
End Property
Private m_Row As IList(Of Row)
End Class

Public Class Row

<JsonProperty("no")>
Public Property No() As String
    Get
        Return m_No
    End Get
    Set
        m_No = Value
    End Set
End Property
Private m_No As String

<JsonProperty("FL")>
Public Property FL() As IList(Of FL)
    Get
        Return m_FL
    End Get
    Set
        m_FL = Value
    End Set
End Property
Private m_FL As IList(Of FL)
End Class

Public Class FL

<JsonProperty("content")>
Public Property Content() As String
    Get
        Return m_Content
    End Get
    Set
        m_Content = Value
    End Set
End Property
Private m_Content As String

<JsonProperty("val")>
Public Property Val() As String
    Get
        Return m_Val
    End Get
    Set
        m_Val = Value
    End Set
End Property
Private m_Val As String
End Class

我被困在这条线上： For Each row var in respone.Response.Result.Contacts.Row

我知道我不能从C＃获得var，但我无法弄清楚如何使这项工作。

1 个答案:

答案 0 :(得分：1)

您拥有的代码可以简化很多。 JSON类没有问题，只有一个例外：

Public Class Row
    Public Property no As String
    Public Property FL As FL()
End Class

由于它已修复，因此数组就可以了。

但是可以更改联系人类别以完成一些工作：

Public Class Contact
    Public Property ContactID As String
    Public Property OwnerID As String
    Public Property ContactOwner As String
    Public Property FirstName As String
    Public Property LastName As String
    Public Property Email As String
    Public Property CreatorID As String
    Public Property CreatedBy As String
    Public Property ModifiedByID As String
    Public Property ModifiedBy As String
    Public Property CreatedTime As DateTime
    Public Property ModifiedTime As DateTime
    Public Property LastActivityTime As DateTime

    Public Sub New(items As FL())

        ContactID = GetValue("CONTACTID", items)
        ContactOwner = GetValue("SMOWNERID", items)
        FirstName = GetValue("First Name", items)
        LastName = GetValue("Last Name", items)
        ...
        Dim tmp = GetValue("Created Time", items)
        CreatedTime = Convert.ToDateTime(tmp)

        tmp = GetValue("Modified Time", items)
        ModifiedTime = Convert.ToDateTime(tmp)

    End Sub

    ' the key corresponds to `val` in the json
    Private Function GetValue(key As String, items As FL()) As String
        Dim value = items.FirstOrDefault(Function(q) q.val = key)
        If value Is Nothing Then
            Return ""
        Else
            Return value.content
        End If
    End Function

    Public Overrides Function ToString() As String
        Return String.Format("{0}, {1}", LastName, FirstName)
    End Function
End Class
  • AutoProperites用于减少繁琐的样板代码
  • 构造函数接受FL()并使用它来查找prop值本身
  • GetValue()辅助函数可以实际查找，因此Dont Repeat Yourself
  • linq方法有点粗糙。稍微检查可以防止所有空的Try / Catch块
  • ToString()覆盖提供ListBox的显示，创建的列表用作DataSource，因此您无需为控件创建数据位副本。 / LI>

另外，我不确定您似乎想要使用匹配的属性映射是否正确。例如，CONTACTID和Contact Owner似乎混淆了，对于某些事情，我无法告诉他们应该来自何处SMCREATORID。

用法：

' form/class level list
Private contacts As List(Of Contact)

其他地方：

' using NEW here, empties the list from previous runs
contacts = New List(Of Contact)

Dim jstr = ...the json from whereever ...
Dim jobj = JsonConvert.DeserializeObject(Of ResponseActual)(jstr)

For Each r As Row In jobj.response.result.Contacts.row
    ' each contact item creates itself
    ' from the FL array
    contacts.Add(New Contact(r.FL))
Next

ListBox1.DataSource = contacts
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