Question

我有以下代码，应该使用Google云消息传递技术将数据从asp.net（VB.Net）开发的Web应用程序发送到Android设备，但我不断收到此错误：远程服务器返回错误：（401）未经授权。

代码如下：

Dim regID As String = "REG_ID_ that i got when I developed the Clint side of this technology"
Dim request As WebRequest = WebRequest.Create("https://android.googleapis.com/gcm/send")
request.Method = "POST"
request.ContentType = "application/x-www-form-urlencoded"
request.Headers.Add("Authorization:Here_I_Provided_the_Server_API_Key")
Dim collapsKey = Guid.NewGuid.ToString("N")
Dim postdata As String = regID + TextBox1.Text + collapsKey
Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postdata)
request.ContentLength = byteArray.Length
Dim dataStream As Stream = request.GetRequestStream
dataStream.Write(byteArray, 0, byteArray.Length)
dataStream.Close()
Dim resposne As WebResponse = request.GetResponse
Dim dataresponse As Stream = resposne.GetResponseStream
Dim reader As New StreamReader(dataresponse)
Dim sResponseFromServer As String = reader.ReadToEnd
Label1.Text = sResponseFromServer
reader.Close()
dataresponse.Close()
resposne.Close()

任何想法如何解决这个问题。

问候

胡萨姆

Answer 1

也许不是

"Authorization:Here_I_Provided_the_Server_API_Key"

你应该试试

"Authorization: key=Here_I_Provided_the_Server_API_Key"

还要确保在应用程序端具有正确的发件人ID，以处理GCM请求。

使用GCM和ASP.net发送数据

1 个答案: