Question

我的 config / routes.rb

中包含此代码

Rails.application.routes.draw do
  get 'timerecords/index'

  get 'employees/index'
  get 'employees/show'
  get 'employees/new'
  get 'welcome/index'
  root :to => 'employees#new'

  resources :employees do
    get '/update_info' => 'employees#update_info'
  end
  resources :timerecords
end

当我尝试保存新记录时，我的 app / controllers / employees_controller.rb

def create
   fname = params[:fname]
   mname = params[:mname]
   lname = params[:lname]
   contactno = params[:contactno]
   address = params[:address]
   username = params[:username]
   password = params[:password]
   status = params[:status]

   @employee= Employee.create(fname: fname, mname: mname, lname: lname,
                           contactno: contactno, address: address,
                           username: username, password: password, status: status)

   redirect_to @employee
end

使用上面的代码，但在类名

下

skip_before_filter  :verify_authenticity_token

现在，我在同一控制器下更新

def update_info
   fname = params[:fname]
   mname = params[:mname]
   lname = params[:lname]
   contactno = params[:contactno]
   address = params[:address]
   username=params[:username]
   password=params[:password]
   status=params[:status]
   id=params[:id]

   @employee = Employee.find(id)

   @employee.update_attributes(id: id, fname: fname, mname: mname,
       lname: lname, contactno: contactno, address: address,
       username: username, password: password, status: status)

   redirect_to @employee
end

当我输入链接时，它会更新很好但有额外的数字。链接看起来像这样

http://localhost:3000/employees/0/update_info?id=39&fname=samplename&mname=samplename&lname=samplename&contactno=09236&address=sampleaddress&username=sampleuname&password=samplepass&status=ac

/ 0 /没有任何意义，但是当我没有意义时，更新不会发生。我在这里尝试做的是调用我的vb.net代码中的链接使用POST方法更新，但我无法更新。保存很顺利，但在更新期间没有。

保存时这是我的vb.net代码

  strLink = "https://dtitdtr.herokuapp.com/employees"
  strData = "fname=" + UrlEncode(txtFName.Text.Trim.ToUpper()) + "&mname=" + UrlEncode(txtMName.Text.Trim.ToUpper()) _
                  + "&lname=" + UrlEncode(txtLName.Text.Trim.ToUpper()) + "&contactno=" + UrlEncode(txtContactNo.Text.Trim) _
                  + "&address=" + UrlEncode(txtAddress.Text.Trim.ToUpper()) + "&username=" + UrlEncode(txtUsername.Text.Trim.ToUpper()) _
                  + "&password=" + UrlEncode(Encrypt(txtPassword.Text)) + "&status=" + UrlEncode("AC")
   Try
      Save(strLink, strData)
      MessageBox.Show("Your registration has been successful!", _
                                      "Registered!", MessageBoxButtons.OK, MessageBoxIcon.Information)
      cmdClear_Click(sender, e)
      frmMenu.Show()
      Me.Hide()
  Catch ex As Exception
      MsgBox(ex.Message)
  End Try

模块

 Public Sub Save(ByVal link As String, ByVal data As String)
    request = WebRequest.Create(link)
    request.Credentials = CredentialCache.DefaultCredentials


    request.Method = "POST"
    request.ContentType = "application/x-www-form-urlencoded"
    postData = String.Format(data)
    request.ContentLength = postData.Length
    byteArray = Encoding.ASCII.GetBytes(postData)
    request.ContentLength = byteArray.Length
    dataStream = request.GetRequestStream()
    dataStream.Write(byteArray, 0, byteArray.Length)
    dataStream.Close()

    response = request.GetResponse()
    dataStream = response.GetResponseStream()
    ' Open the stream using a StreamReader for easy access.
    reader = New StreamReader(dataStream)
    webRep = (CType(response, HttpWebResponse).StatusDescription)


    dataStream = response.GetResponseStream()
    reader = New StreamReader(dataStream)

    reader.Close()
    response.Close()

End Sub

我尝试了更新，但它只是没有工作。

request = WebRequest.Create("http://localhost:3000/employees/40/update_info?")

不会发生更新...好像它没有执行...如果用户名不存在，即使我尝试更新信息而不添加，它也会立即添加。我想问题出在我的 RAILS 代码中。我无法理解什么。 任何人都可以帮助我吗？

Answer 1

我想出了这个答案......我改变了我的路线.rb到了这个

 Rails.application.routes.draw do
   get 'timerecords/index'

   get 'employees/index'
   get 'employees/show'
   get 'employees/new'
   get 'welcome/index'
   root :to => 'employees#new'

   post '/update_info'
   resources :employees, :timerecords
end

以这种方式拥有我的vb代码......

request = WebRequest.Create("http://localhost:3000/employees/update_info")

并确保在元素中添加 id 。：）

如何使用POST方法更新vb.net中的数据？

1 个答案: